Page 1
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
1
Presentation of the Bohle AG
about Industrial Glass Cutting Technology
at
GLASSTECH ASIA 2017
Page 2
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
2
This is Bohle.
The Bohle Group
▪ was founded in 1923
▪ is family-owned in the third generation
▪ is a leading manufacturer and supplier of tools,
machines and accessories for glass
processing and glass finishing
▪ has over 300 employees at 13 locations
Page 3
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
3
Bohle is There
Our focus is on glass - But that's not all!
Glass has been the focus of Bohle's activities
since the founding of the company. But many of
our products also find applications in other
sectors. For example, products from the
vacuum technology
sector are also used in stoneworking,
automobile manufacturing as well as other
industrial enterprises - as standard products or
as customized solutions.
Page 4
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
4
Full Range – One Supplier
The Bohle modular principle
The full product range offers everything that the glass professional needs in his daily work,
all from a single source. No matter what challenges you are faced with - the Bohle modular
system offers you the elements that can advance you and your business.
Page 5
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
5
Product Divisions
In the founding years, the Bohle product range consisted of cutting wheels for
glass cutters. Today it has grown to ten product divisions offering practically everything
required for working with glass in the trade and industry.
Glazing
Automatic
Glass Cutting
Surface
Technology
Manual Cutting
Technology
Grinding, Drilling,
Sawing
Machinery
Handling Glass
Bonding
Fittings
Page 6
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
6
Trademarks
World's largest range of products for glass cutting and breaking
Lifting and carrying products from pump-activated suction lifters to industrial, quality lifting
systems
with a load capacity of several metric tons
Special glass cutters as well as a comprehensive range of diamond tools for
smaller machines
From UV adhesives to positioning and dispensing aids: all the products
needed to produce high quality, lasting glass bonds
Page 7
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
7
Automatic Glass Cutting
Complete Solutions from One Source
▪ High precision cutting wheels made of carbide or PCD
▪ Top quality wheel holders made of plastic or steel
▪ Carbide axles for high-speed cutting
▪ Customer-specific shapes and grinds
▪ OEM for well-known cutting machine manufacturers
▪ Customised solutions on the spot
Page 8
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
8
Decades of Experience
Core Competence Cutting Technology
Silberschnitt is one of the most important brand names in the field of flat glass cutting.
A long tradition in glass cutting and high standards in production quality
justify the strong position in the European market.
1923 First cutting wheel for glass cutting
1933 First manual glass cutter with the brand name Silberschnitt
1952 Carbide cutting wheels for automatic cutting
2001 Cutting wheels made of polycrystalline diamond (PCD)
2006 Cutmaster Gold wheels with 10-fold service life
2007 Cutmaster® Platinum microstructured wheels for
high precisionthin glass cutting by significant
reduction of edge damaging
Page 9
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
9
Glass Cutting - Glass BreakingWhat happens when you cut glass?
▪Only when using an appropriate tool, it is guaranteed that the score is broken precisely
at the desired place.
▪By scoring the glass surface, tensions are transmitted into the glass which can then be
broken by bending it in a controlled manner either by hand or with glass breaking pliers
Page 10
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
10
Required cutting force for different cutting angles
Obtuse angles have a larger contact area than acute
angles and therefore require a higher cutting force
Penetration depthmax. 0,2 mm
Page 11
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
11
Compressive stress in the middle of the glass thickness
Penetration depthmax. 0,2 mm
Lower glass
edge
Upper glass
edge
Page 12
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
12
Effects when cutting
Shatter area of score
GlassCrack
depth
Cutting edge
Accompanying
cracks
Cutting line
Inner tension
Fresh score Old score
Crack depth
Lateral crack
Shatter area of score
Quelle:H.Jebsen-Marwedel und K.von StösserGlastechnische Berichte 1939,
Side wings
Page 13
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
13
Cutting Technology Today
Technology
Bohle has been developing and producing complete solutions for cutting machines for many years.
In cooperation with customers, cutting wheels for many different applications are produced in the
company-owned Research and Development Centre.
One of the latest developments is the structured cutting wheel with extraordinarily long service life.
Page 14
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
14
Characteristic of grinds (roughness values)
Active
Basic
Contact
Plus
Page 15
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
15
Cutting GlassManual Cutting
Automatic Cutting
Picture Intermac Picture LisecPicture IHegla Picture IHegla
Page 16
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
16
Choosing the right glass cutter, holder and cutting wheel
depending on the glass thickness and type of cut
(straight or shaped cut)
Manual Cutting
▪Choice of glass cutter
Automatic Cutting
▪Existing cutting head
▪Handling , function, appearance ▪Selection of wheel holder
Page 17
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
17
Automatic Glass Cutting
Online Cutting / Offline Cutting
▪ Depending on the existing cutting head
▪ Selection of wheel holder (insert)
Page 18
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
18
It all comes down to the wheel!!
▪ Carbide wheels are made of especially selected carbide
ymaterial and guarantee a long service life
▪ For the use in machines, carbide wheels are
available in different sizes, thicknesses and cutting angles
▪ Excellent performance on specialized machinery
▪ Each cutting wheel is subject to careful inspection
Page 19
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
19
Types of Cutting wheels
▪Tungsten Carbide
▪PCD Polycristalline Diamond
Page 20
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
20
Glass Cutting Process
Online Cutting
Float production
Down drow process
Up drow process
Offline Cutting
Automotive
Cutting laminated glass
Standard cutting table
Page 21
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
21
Online cutting
Picture
Grenzebach / Bottero
Page 22
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
22
Pillar posts for float lines
436.220
436.200
439.1015
Pillar posts to fit plastic clips are also available from Bohle
Page 23
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
23
Popular float lines in the marked
436.220L
436.200 439.1015
Grenzebach
Bottero
Iscan
Triumph, Tuscheng and other
436.220L
432.0 416.er422.0
432.0 416.er422.0
432.0 416.er
Page 24
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
24
Automotive cutting
Picture BystronicPicture Benteler
Page 25
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
25
Automotive Application
Different type of machines in the market
Bystronic432.0 422.0 422.1
Bando432.0
Olbricht432.0 422.0 422.1
Benteler422.0 422.1
Page 26
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
26
Cutting of laminated glass
Picture Lisec
Page 27
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
27
Cutting on Standard Cutting Tables
Picture Lisec Picture Bystronic
Picture Macotec Picture Intermac
Page 28
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
28
Typical result, incorrect break
Page 29
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
29
Typical result, incorrect break
Page 30
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
30
Typical result, incorrect break
Page 31
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
31
Typical result, incorrect break
Page 32
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
32
Typical result, incorrect break
Oversize for grinding process will be required!
Cost for grinding will increase!
Page 33
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
33
Correct cutting application, perfect break
Time saving for grinding > cost saving!!
Page 34
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
34
Correct cutting application, perfect break
Perfect breaking edge > cost saving!!
Page 35
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
35
Correct cutting application, perfect break
Page 36
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
36
0.800.652,506
1.301.003.005
2.602.008.008
3.004.0012.564
1.603.006.063
1.551.146.007
1.301.005.613
1.421.085.603
1.301.005.002
1.421.084.112
1.301.004.004
0.800.653.066
Inner ØThicknessOuter Ø
Dimensions in mmArticle
No.
Cutting wheels - at a glance Tolerances
If you need special tolerances, we can manufacture these for you
on request
Page 37
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
37
Cutting wheels - at a glance
Wheel type 03, 12 and 02
Any kind of angle can be delivered in
packing unit 10 and 100 pc
Page 38
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
38
Important Parameters when cutting glass
▪ Shape of the cut
▪ Wheel diameter
▪ Cutting angle
▪ Cutting force
▪ Cutting speed
▪ Cutting fluid
▪ Type of Glass
Page 39
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
39
Guidelines for choosing the right cutting angle
Straight cuts on standard cutting tables
Shaped cuts on standard cutting tables
Open cuts for automotive process
Page 40
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
40
For straight cuts
Float glass
Wheel type 03
Ø 5,6 x 1,08 x Ø 1,42 mm
Glassthickness Cutting angle Grinding
0,8 - 1,0 mm 110° Basic
1,0 - 1,5 mm 120° Basic
1,5 - 2,0 mm 127° Basic
3,0 - 4,0 mm 135° Active
5,0 - 8,0 mm 145° Active
10 mm 150° Active
12 mm 155° Active
15 mm 155° Active
19 mm 160° Active
Guidelines for choosing the right cutting angle
Page 41
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
41
Glassthickness Angle Grinding
0,8 - 1,0 mm 115° Basic
1,0 - 1,5 mm 125° Basic
1,5 - 2,0 mm 130° Basic
3,0 - 4,0 mm 145° Active
5,0 - 8,0 mm 155° Active
10,0 mm 158° Active
12,0 mm 160° Active
15,0 mm 163° Active
19 - 25 mm 165° Active
Guidelines for choosing the right cutting angle
For shaped cuts
When cutting shapes,
a smaller wheel diameter shouldbe chosen in general, e.g. type 12, (Ø 4,1 mm) for a glass thickness up to 8 mm.
For 10 mm glass thickness ormore, wheel type 03, (Ø 5,6 mm) is recommended.
Page 42
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
42
Glassthickness Angle Grinding
2,0 mm 148° Active
3,0 mm 152° - 153° Active
4,0 mm 154° - 155° Active
5,0 mm 156° - 158° Active
6,0 mm 160° Active
8,0 mm 163° Active
10,0 mm 163° Active
Guidelines for choosing the right cutting angle
For open cuts
To obtain an open cut, a smaller wheel diameter should be chosen in general, e.g. type 12, (Ø 4,1 mm) for a glass thickness up to 8 mm.
For 10 mm glass thickness
wheel type 03, (Ø 5,6 mm)
is recommended.
Page 43
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
43
Lifespan of a wheel
Plastik Clip 10 25
Metal Holder 20 40
Lifetime in km
0 10 20 30 40 50
Lifetime in km
Metal Holder
Plastik Clip
Page 44
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
44
Choosing the right cutting angle: Following basic rules apply
The thinner the glass and the more acute the cutting angle,
the lower the required cutting pressure (60 N – 10 N)
The thinner the glass, the finer the grind
The thinner the glass, the more acute (sharp) the cutting angle
should be (135° - 90°)
Page 45
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
45
Vice Versa:
▪ The thicker the glass, the more obtuse (blunt) the cutting angle
aashould be (135° - 165°)
▪ The thicker the glass and the more obtuse the cutting angle,
bbthe higher the required cutting pressure. (60 N – 250 N)
▪ The thicker the glass, the coarser the grind should be
Page 46
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
46
Polarization screen photo of a glass edge
145° F = 35 N
after 15 min145° F = 35 N
after 30 min145° F = 35 N
Snapshot right after cutting and holding time
Glass thickness 8 mm Glass thickness 8 mm Glass thickness 8 mm
Page 47
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
47
Polarization screen photo of a glass edge
Snapshot right after cutting.
With different cutting angles and corresponding cutting pressure.
120° F= 25 N 145° F= 35 N 157° F= 150 N
Glass thickness 8 mmGlass thickness 8 mmGlass thickness 8 mm
Page 48
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
48
Edge quality using the same cutting angle but different cutting force (straight cutting)Clean edge with good breaking appearance
and only smallest notches caused by the
cutting wheel
Low quality cutting edge with prominent
notches and break-outs
Very bad quality cutting edge with prominent
notches, break-outs and scallops
Page 49
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
49
Setup for the cutting machine, best breaking
performances with the correct cutting angle
Incorrect break (152° 6 mm Glass) Excellent break (156° 6 mm Glass)
Cutting angle to sharp, improvement only with Perfect rectangular edge easy work in the
blunter cutting angle and higher cutting force following grinding process
Page 50
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
50
Positive effects when using cutting fluid
The cutting fluid lubricates the cutting wheel at the axle and the sides.
The cutting fluid binds small glass chips and stops them from moving onto the glass surface scratching the same.
The smoother the run of the wheel, the better the quality of the cut.
The cutting fluid penetrates into the smallest micro-fissures and stabilizes the built-up tensions for a longer period of time.
By wetting the cutting wheel with cutting fluid (with machines by continuous flushing), part of the glass dust is bound and flushed away.
Page 51
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
51
Development of fissure after holding time
a ) 2 minutes
b) 4 minutes
c) 6 minutes
d) 8 minutes
e) 10 minutes
Page 52
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
52
Polarization screen photo of a glass edge
145° F = 35 N
after 15 min145° F = 35 N
after 30 min145° F = 35 N
Glasdicke 8 mm Glasdicke 8 mm Glasdicke 8 mm
Snapshot right after cutting and holding time Side wings
Page 53
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
53
Latest Developments of Bohle
Cutmaster® Platinum The perfect solution for glass cutting
Precise glass penetration –
perfect edge quality.
Page 54
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
Competitive Comparison
54
1:500 1:1000
What is different compared to standard cutting wheels?
The special structure displays a continuously sharp cutting edge over the entire
circumference
across the peaks as well as the recess areas.
This new cutting wheel achieves excellent cutting results due to its unique micro-
structure.
Page 55
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
55
Penetration in the glass by Cutmaster®
PlatinumUnit : Micron
Page 56
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
56
Cutting Wheels in Comparison
Cut Quality
Cutting pattern of the fissure at a cutting pressure of 12 N.
Silberschnitt Cutmaster® Platinum
1:2001:200
Standard Tungsten Carbide
Page 57
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
57
Cutting Wheels in Comparison
Presentation of achieved Fractures
Appearance of fissures on a 1.1 mm thin glass panel.
Standard Tungsten Carbide Silberschnitt Cutmaster® Platinum
0.014 mm 0.03 mm
1:20 1:20 1:20
1:60 1:60 1:60
Page 58
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
58
Cutting Wheels in Comparison
Presentation of achieved Fractures
Appearance of demmages in 8 mm float glass using a cutting angle of 145°.
.
Standard Tungsten Carbide Silberschnitt Cutmaster® Platinum
0.020 mm
1:20
1:60 1:600.10 mm
1:60
0.034 mm
0.26 mm
1:60
Page 59
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
59
Normal Tungsten CarbideSilberschnitt Cutmaster® Platinum
1:500 1:500 1:750 1:750
Competitive Comparison
Presentation of achieved fissures
Close-up of the different fractures on 8 mm float glass using a cutting angle of 145°.
Page 60
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
60
1:500
1:1000
Competitive Comparison
Close-up Fissures - Cutmaster® Platinum
Highly accurate cutting pattern without splinter formation. Precise penetration into the
glass. Minimal damage of the cutting edge. Regular, controlled intersection cuts in cutting
direction.
0.011mm
1:750
Page 61
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
Competitive Comparison
Close-up Fissures - Tungsten Carbide Wheel
Regular but rough cutting pattern. Serrated cutting edge. Erratic cutting fissure. Severe
damage of cutting edge. Excessive splinter formation
61
1:500 1:1000
0.025 mm
Page 62
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
Applications of Cutmaster® Platinum
62
Thinglass
Shape cuts 0.1 – 2.0 mmStraight cutting 0.05 – 3 mm
Floatglass
Straight cutting 0.5 – 19 mm
Shape cuts 0.1 – 2.0 mm
Special Glass Types
Medical Glass
Optical Glass
Straight cutting of borosilicate glass up to 25 mmStraight cutting of diverse special glass type
Shape cuts over diverse special glass from 0.1 – 2.0 mm
Page 63
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
63
Application cross cut, standard cutting wheel
scale up 60 x
Page 64
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
64
Application cross cut, Cutmaster Platinum
scale up 60 x
Page 65
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
65
Application cross cut, Cutmaster Platinum
scale up 750 xscale up 250 x
Page 66
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
66
Cutmaster Platinum
Applications of Cutmaster® Platinum
Cutmaster Platinum
Standard
Standard
Page 67
Automatic Glass Cutting
www.bohle-group.comPeter Pokoern
Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
67
Applications of Cutmaster® Platinum
CMP cutting edge Standard cutting edge
Page 68
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
68
Applications of Cutmaster® Platinum
CM
P c
utt
ing
ed
ge
Sta
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ard
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g e
dg
e
Page 69
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
69
Comparison CMP® and standard wheels
Side wingsNo Side wings
No splinters (glass chips)
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Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
70
Approved applications of Cutmaster®
PlatinumApplication Glass Thickness Typ of Wheel
Float / Borofloat Substrate 0,5 - 1,2 mm 66B125P, 66B130P
Float / Borofloat Substrate 0,5 - 1,2 mm 66B120P
D 263 Substrate 0,05 - 0,21 mm 66B100P, 66B 110P
Borofloat Offline straight cutting 3 - 25 mm 66B125 -66B140
Float Offline straight cutting 3 - 19 mm 03A000P* 135 - 155°
Page 71
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
71
Approved applications of Cutmaster®
PlatinumApplication Glass Thickness Typ of Wheel
Borofloat Substrate 1,1 mm 66B110P
Borofloat Offline straight cutting 5 - 7 mm 66B125, 66B135
Solarglass Solar-Panels 3 - 4 mm 66B125P
Schott B 270 Offline straight cutting 0,7 - 10 mm 66B125P
Ceran / Neoceran Offline straight cutting 3 - 6 mm 66B125P / 12A135P
Quarzglass Tubes 2 mm 66B140P
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Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
72
Approved applications of Cutmaster®
PlatinumApplication Glass Thickness Typ of Wheel
Float Offline straight cutting 1,6 - 2,5 mm 66A135P
Float Online 4 - 8 mm 12A135P, 12A145P
Float Substrate 1,2 mm 66B120P, 85D120P
Float Substrate 1,2 mm 66B120, 66B125P, 66B135P
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
Advantages at a glance from
Cutmaster® Platinum
73
Excellent edge quality
Minimal cutting force (thin glass cutting)
Minimal splintering
Longer service life
Dry cutting
Improved edge stability
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Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
Influences of cutting force dependent on the trim
74
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
75
Guidelines for choosing the right cutting angle in straight cutting
CMP Cutmaster Platinum Application
Glass thickness CMP application standard
1,5 - 2,5 mm 135° 120° - 130°
2,6 - 3,5 mm 145° 135°
4 mm 145° 135°
5 mm 148° 150° 145°
6 mm 148° 150° 145°
8 mm 150° 152° 155°
10 mm 155° 155°
12 mm 155° 158°
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
76
Choosing the wheel holder
▪ Plastic wheel holders for float glass cutting online as
well as for cutting tables offline
▪ Low price, colour-coded
▪ Inadequate stability when high cutting pressure is required
▪ Disadvantages:
▪ Axle can move out the holder
▪ Deficient precision
▪ Advantages:
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
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▪ Cost factor, no color code for the cutting angle
▪ Disadvantages:
Choosing the wheel holder▪ Metal holders in the automotive industry, standard cutting
▪ Precise guidance, minimal tolerances, high stability with high
cutting pressures
▪ Dry cutting of coated glass panes or panes with a film
▪ Cutting wheels and axles are exchangeable
▪ Choosing the optimal wheel diameter.
▪ Advantages:
Page 78
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
78
Position of the wheel in the wheel holder
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
79
Position of the wheel in the wheel holder
BO 438.114 Test pin
With the test pin Ø 1.14 mm it is possible to check the play in the slot
dimensions of wheel holders 432.0/ 432.1 / 422.0
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
80
Automotive Application
Other types of machines in the market
Bottero, Rohmer & Stimpfig, Billco, AGC, others
Suitable System 432.0
Bohle always has the correct product available
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
81
Silberschnitt Quick Exchange Wheel Holders
Automotive Application
Standard Version Quick Exchange
Page 82
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
82
Silberschnitt Quick Exchange Wheel Holders
High precision, minimal tolerances, inherent stability under high cutting pressure
Easy exchange of cutting wheels and axles
Optimized cutting wheel diameter
Dry cutting of glass with films or other coatings
Quick exchange, minimal set-up times
Automotive Application
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29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
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▪ 03XxxxØ 5,6 x 1,08 x Ø 1,42
▪ 432.0 / 432.1 / 432.080
▪ 12XxxxØ 4,1 x 1,08 x Ø 1,42
Axle496.139FØ 1,39 x 4,2
Wheel holders and corresponding wheels
Page 84
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
84
Wheel holders and suitable wheels for thinn glass
432.3
▪ 05Xxxx ▪ Ø 3,0 x 1,00 x Ø1,30
Axle496.130
Ø1,30 x 4,2
Axle496.080
Ø 0,80 x 4,2
▪ 66XxxxØ 3,0 x 0,65 x Ø 0,80
432.6
▪ 06XxxxØ 2,5 x 0,65 x Ø 0,80
Page 85
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
85
Wheel holders and suitable wheels
▪ 03XxxxØ 5,6 x 1,08 x Ø1,42
▪
▪ 422.0
▪ 12XxxxØ 4,1 x 1,08 x Ø1,42
Axle496.422
Ø1,39 x 9,0
▪ 422.1
▪ 63Xxxx Ø 6,0 x 3,00 x Ø1,60
Axle496.160
Ø1,60 x 9,0
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Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
86
Module complete assembled
432.XXX1
Wheel type03
Ø 5,6 x 1,08 x Ø 1,42
432.XXX2
Wheel type12
Ø 4,1 x 1,08 x Ø 1,42
432.XXX3
Wheel type 05
Ø 3,0 x 1,00 x Ø 1,30
432.XXX6
Wheel type 66
Ø 3,0 x 0,65 x Ø 0,80
Dimension in mm
Page 87
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
87
Available wheel holders (inserts)
Dimesions in mm
432.1351
wheel type 03
Ø 5,6 x 1,08 x Ø 1,42
cutting angle 135°
432.1352
wheel type 12
Ø 4,1 x 1,08 x Ø 1,42
cutting angle 135°
Following assembled
inserts with cutting angle
insription are available.
127°
134°
135°
140°
145°
148°
150°
152°
153°
154°
155°
156°
158°
160°
163°
165°
Completely assembled
Page 88
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
88
Advantages of the Bohle Technology
Smaller wheel diameter » Less cutting pressure
and excellent edge quality «
Quick exchange wheel holders » Shorter machine downtime «
Compatible » Can be used on all machines «
Page 89
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
89
References
Silberschnitt as OEM
Silberschnitt products are used for processing float glass and thin glass.
Leading companies of the flat glass industry use Bohle products as OEM.
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Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
90
Thank you for your attention.
Bohle AG
Dieselstraße 10
D-42781 Haan
Peter Pokoern
T +49 2129 5568 230
F +49 2129 5567 232Email:[email protected]
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
91
Germany
Bohle AG
Dieselstraße 10
D-42781 Haan
T +49 2129 5568-0
F +49 2129 5568-281
[email protected]
Austria
Bohle GmbH
Lemböckgasse 63/2/1
A-1230 Wien
T +43 1 804-4853-0
F +43 1 804-4853-33
[email protected]
UK and Ireland
Bohle Ltd.
Fifth Avenue
Tameside Park Dukinfiled
Cheshire · SK14 4PP
T +44 161 342 1100
F +44 161 344 0111
[email protected]
Estonia
Bohle OÜ
Punane 42 – 101
EE-13619 Tallinn
Tel.: +372 6112-826
Fax: +372 6112-790
[email protected]
Find your next Bohle location. Worldwide.
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
92
Find your next Bohle location. Worldwide.
France
Département français
Dieselstraße 10
D-42781 Haan
T +49 2129 5568-222
F +49 2129 5568-281
[email protected]
Hungary
Bohle GmbH -
Forgalmazás HU
Lemböckgasse 63/2/1
A-1230 Wien
T +43 1 8044853-19
F +43 1 8044853-44
[email protected]
Italy
Bohle Italia s.r.l.
Via Cavallotti 28
I-20081 Abbiategrasso
T +39 02 9496-7790
F +39 02 9460-9011
[email protected]
Netherlands
Bohle Benelux B.V.
Nieuweweg Noord 314 B-20
NL-3905 LX Veenendaal
T +31 318 553151
F +31 318 519859
[email protected]
Page 93
Automatic Glass Cutting
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
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Find your next Bohle location. Worldwide.
Russia
000 Bohle - Moskau
Leninsky Rayon
Business Center Rumjanzevo
Bldg. 1, Block A, Office 721 A,
RU-142784 Moscow
Tel.: +7 499 94094-04
Fax. +7 499 94093-93
[email protected]
Spain
Bohle Complementos del Vidrio
S.A.U.
Mare de Deu de Bellvitge, 312
E-08907 L'Hospitalet
Barcelona
T +34 90288-9119
F +34 90288-9118
[email protected]
Russia
000 Bohle – St. Petersburg
Ul. Bumazhnaya 9, korp. 1/A
Office 422
RU-198020 St. Petersburg
Tel.: +7 812 4452792
Fax: +7 812 4452793
[email protected]
Page 94
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Director Product Unit Industrial Glass Processing
29.11.2017 Bohle AG · Dieselstraße 10 · D-42781 Haan · Germany
94
Find your next Bohle location. Worldwide.
Sweden
Bohle Scandinavia AB
Pyramidbacken 3
SE-14175 Kungens Kurva
T +46 8 44957-50
F +46 8 44957-59
[email protected]
USA
Bohle America, Inc.
13850 Ballantyne Corporate Place
Suite 500
Charlotte, NC 28277
T +1 704 887 3457
F +1 704 887 5201
[email protected]
South Africa
Bohle Glass Equipment (Pty) Ltd.
Unit 3, Graphite Industrial Park
Fabriek Street,
Strijdom Park 2125, Gauteng
T +27 11 792-6432
F +27 11 793-5634
[email protected]