COMBO TAP - M'La Sales Corporationmla-sales.com/pdf/Combo Tap Brochure.pdf · Tap (Total Tapping 210 Holes) YG1 Combo Tap (Total Tapping 210 Holes) - Picture of Test 1 -①[Carbon

YG YG -- 1 CO., LTD1 CO., LTD

COMBO TAP


◈ Screw Thread Terms and Definitions

Major Diameter – The largest diameter of a straight thread

Minor Diameter – The smallest diameter of a straight thread

Pitch Diameter – On a straight screw thread, the diameter of an imaginary cylinder, the surface of which would pass through the threads at such points as to make equal the width of the threadsand the width of the spaces cut by the surface of the cylinder.

Pitch – The distance from a point on a screw thread to a corresponding point on the next thread measured parallel to the axis.

NUT

a – HALFANGLE

MINOR DIA.

MAJOR DIA.PITCH DIA.

LEADANGLE ATPITCH DIA.

PITCHA

a

a

SCREW

AXIS

A – INCLUDEDTHREADANGLE

DIA

ME

TER

OF

IMA

GIN

AR

Y C

YLI

ND

ER

PITCH

PITCHDIAMETER

WIDTH OFTHREAD

WIDTH OFSPACE=


◈ Pitch Dia.

NormalThread

Over-sizeThread

Pit

ch D

iam

ete

r

Max

. D

iam

eter

Min

. D

iam

eter

Pit

ch D

iam

ete

r

Min

. D

iam

eter

Max

. D

iam

eter

t

Pitch Dia Oversize : 2t


◈ Tapping = Broaching

•Tapping & broaching are the same,Move to lead(Helix) direction.

Pitch

FrontPilot

RearPilot

RoughingTeeth

FinishingTeeth

Chip Thickness

•Broaching

•Tapping

Material

Depth per tooth

Total Cutting Depth


Ex) 4 Flute, Chamfer length : 3pitch

◈ Tapping : Spiral Broaching

TappingChip Section Area

of the first lipin the chamfer

Chip Section Area of the last lip

in the chamfer

Tap Drill Diameter


- Over feeding(95%)- Material to be cut- Accuracy of tapping machine- Setting-up- Tap Geometry

◈ Thread Thinning

Normal Thread Thin Thread

The thin thread could be producedby taps, especially, with spiral flute.


◈ Nut Oversized by Thin Thread

Pit

ch D

iam

ete

r

Max

. D

iam

eter

Min

. D

iam

eter

Pit

ch D

iam

ete

r

Min

. D

iam

eter

Max

. D

iam

eter

tPitch Dia Oversize : 2t

; Different the oversize even cut by spiral tap of same grade.

Nut withNormalThread

Nut withThin

Thread


◈Wedge Angle of thread on Spiral Flutes TapsLead Angle

Wedge Angle At Leading Flank (an acute angle)

Wedge Angle At Trailing Flank

(an obtuse angle)

section B-B

A

A

AA

B

section A-AB

; Especially, possibility of thin thread is highin case of bigger Spiral angle and more Relief.


◈ Normal Cutting Thread◈ Normal Cutting Thread (1 Thread 2 Flute)◈ Normal Cutting Thread (1 Thread 3 Flute)◈ Normal Cutting Thread (2 Thread 1 Flute)◈ Normal Cutting Thread (1 Thread 1 Flute)◈ Normal Cutting Thread (2 Thread 2 Flute)◈ Normal Cutting Thread (2 Thread 3 Flute)◈ Normal Cutting Thread (3 Thread 1 Flute)◈ Normal Cutting Thread (3 Thread 2 Flute)◈ Normal Cutting Thread (3 Thread 3 Flute)◈ Normal Cutting Thread (4 Thread 1 Flute)◈ Normal Cutting Thread (5 Thread 1 Flute)◈ Normal Cutting Thread (6 Thread 1 Flute)1st

Full Thread1st

Full Thread1st

Full Thread


◈ Thin Cutting Thread (1 Thread 1 Flute)◈ Thin Cutting Thread (1 Thread 2 Flute)◈ Thin Cutting Thread (1 Thread 3 Flute)◈ Thin Cutting Thread (2 Thread 1 Flute)◈ Thin Cutting Thread (2 Thread 2 Flute)◈ Thin Cutting Thread (2 Thread 3 Flute)◈ Thin Cutting Thread (3 Thread 1 Flute)◈ Thin Cutting Thread (3 Thread 2 Flute)◈ Thin Cutting Thread (3 Thread 3 Flute)◈ Thin Cutting Thread (4 Thread 1 Flute)◈ Thin Cutting Thread (5 Thread 1 Flute)◈ Thin Cutting Thread (6 Thread 1 Flute)1st

Full Thread1st

Full Thread1st

Full Thread


◈ Overfeed TappingEx) Tap with Single Flute, 3 Pitch Chamfer

Normal Tapping Process Overfeed Tapping Process

Thinning

Appliedcutting edge

Material to be cuttapIntendedthread

Drilled hole

tap Chamfer Material to be cut

Drilled hole

overfeeding

overfeeding

overfeeding

overfeeding

Intendedthread

Chamfer

Appliedcutting edge

NormalThread

OverfedThread


◈ Chip pocket

•Chip pocket : Flute form in out diameter of drill. •Chip pocket : Flute form in tap drill diameter.

• Drill Ø6.0 Flute • Tap (M6) FluteTap Major Diameter

Tap Drill Size

Out Diameter of Drill

Web Diameter

Ø5.0

Ø2.28

Ø6.11

Ø1.48

Ø6.0

2.26

1.36


◈ Construction of COMBO PatentPatent

SpecializedFlankForm

Leading FlankTrailing

Flank

A

SECTION A-A'A'


-- COMBO TapsCOMBO Tapsprevent over-feedingby the specially designed thread construction.

◈ Features of COMBO Tap

Problems caused by Over-feeding- Thin thread. - Pitch Dia. over-size.- Chip clogging.- Higher power consumption.- Tap failure.

Normal Thread Thin thread By STD Tap (All Thread)


◈ Grade of Tap-- Standard(Combo), MultiStandard(Combo), Multi--1, DIN / ISO Taps.1, DIN / ISO Taps.

Max. PD Limitsof Nut Thread

Basic PD= Min. PD Limits of Nut Thread

7.208

7.188

7.2287.233

7.318

7.253

Wear Allowance (4㎛)

16%

0%

31%35%

100%

50%

M8x1.25

Metric STD(Combo)

YH2

7.1927.200

3%9%

YH3X

7.310 94%

0.1

30

Multi-1

DIN/ISO STD

123%

NutNut(6H)(6H)

7.348

TAPTAP6H6H

7.2517.251 49%49%

7.2267.226 30%30%

18.376

18.416

18.436

18.446

18.566

18.466

21%

0%

32%37%

100%

47%

M20x2.5

18.38218.392

3%8%

18.556 95%

0.1

90

YH4X

Multi-1

No Go (KS)

NutNut(6H)(6H)

TAPTAP6H6H

Wear Allowance (6㎛)

118%18.600

18.43018.430 28%28%

Metric STD(Combo)

YH3

No Go (KS)

Go (KS)

7.340 117%No Go

Go (KS)

No Go18.550 113%

NutNut(JIS II)(JIS II)

DIN/ISO STD

NutNut(JIS II)(JIS II)


◈ Substitute to Combo Tap (EUROPE)

2

BrightDIN 371/374UNFTC254DIN 371/376UNCTC244/TD244

Bright/TiNDIN 374MFTC263/TD263

Bright/TiNNitrided/TiAlN

HSS-E

TC422/TD422TE422/TY422

Bright/SteamhomoHSS-PMDIN 371/376M

Gun Point Tap

TR863/TQ863BrightDIN 371/374UNFTC184

DIN 371/376UNCTC174/TD174Bright/TiN

DIN 374MFTC413/TD413SteamhomoTB913

Bright/SteamhomoTiN/TiAlN

HSS-E

TC312/TB312TD312/TY312

Bright/SteamhomoHSS-PM

DIN 371/376M

Spiral Flute Tap

TR823/TQ823

VG(Heat treated

and heat-resistant steelsRm>750N/㎟)

Bright/SteamhomoHSS-PMDIN 371/376MGun Point TapTR853/TQ853Bright/SteamhomoHSS-PMDIN 371/376MSpiral Flute TapTR813/TQ813

VA

DIN 371/374UNFTB274DIN 371/376UNCTB264 Steamhomo

DIN 374MFTB123Steamhomo/Hardslick

HSS-E

DIN 371/376M

Gun Point Tap

TB623/TCH23DIN 371/3746UNFTB924DIN 371/376UNCTB904 Steamhomo

DIN 374MFTB183Steamhomo/Hardslick

HSS-E

DIN 371/376M

Spiral Flute Tap

TB914/TCH14NW

(Carbon steels with low contents

of alloyRm<600N/㎟)

+VA

(Stainless Steels)

SteamhomoHSS-EDIN 371/376MSpiral Flute TapTB711NWDIN 371/3746UNFTC234

BrightDIN 371/376UNCTC214

DIN 374MFTC222/TD222DIN 376TC227/TD227 Bright/TiN

HSS-E

DIN 371M

Gun Point Tap

TC127/TD127DIN 371/374UNFTC124

BrightDIN 371/376UNCTC144

DIN 374MFTC411/TD411Bright/TiN

TC711/TD711TC517

※ Substitute to Combo Tap

※ Available Type : 8 Type*Coarse Thread(DIN371/376)

Metric Unified SF : TC804 TC824GP : TC814 TC834

*Fine Thread(DIN371/374)Metric Unified

SF : TC844 TC864GP : TC854 TC874

※ Yellow : Recommended

※ Violet : Suitable

Bright

HSS-E

DIN 371/376M

Spiral Flute Tap

TC211

GS(Steels with good

machinabilityRm<750N/㎟)

RemarkSurface Treatment

Tap MaterialsDimensionsThread

SymbolDiscriptionSeriesApplication


* Except for Hand Tap on Straight Flute Tap

◈ Substitute to Combo Tap (EUROPE)

3

Bright/TiAlNHSS-PMDIN 371/376MGun Point TapTM293/TZ293

Bright/TiAlNHSS-PMDIN 371/376MSpiral Flute TapTM903/TA903Ti(Titanium Alloys)

Bright/TiAlNHSS-PMDIN 371/376MGun Point TapTR873/TQ873

Bright/TiAlNHSS-PMDIN 371/376MSpiral Flute TapTR833/TQ833Ni & Ti

Bright/TiAlNHSS-PMDIN 371/376MGun Point TapTM923/TZ923

Bright/TiAlNHSS-PMDIN 371/376MSpiral Flute TapTM933/TZ933Ni(Nickel alloys)

Bright/TiAlNHSS-EDIN 371/376MGun Point TapTC283/TY283

　

Bright/SteamhomoTiAlN

HSS-EDIN 371/376MSpiral Flute TapTC313/TB313TY313

HR(High alloyed steels

Rm>1,000N㎟)

BrightTC622

NitridedHSS-EDIN 371/376MGun Point Tap

TE943

DIN 371/374UNFTC170

DIN 371/376UNCTC169 Bright

DIN 374MFTC963

NitridedTE953

　

Bright

HSS-E

DIN 371/376M

Spiral Flute Tap

TC163

AL(Aluminium &

Aluminium Alloys)

RemarkSurface Treatment

Tap MaterialsDimensionsThread

SymbolDiscriptionSeriesApplication


1) Test 1 Report (M6 x 1.0 – YG1 STD., YG1 Combo Tap, Competitor.A,B)

① 1st Test, Carbon Steel(C45, HRc20), Wet Cut → Combo Tap > B Tap > YG1 STD. > A Tap

② 2nd Test, Stainless Steel(X5CrNi18 10), Wet Cut→ Combo Tap > A Tap> YG1 STD.

2) Test Cutting Condition (for YG1 Catalog)

Stainless Steel(X5CrNi18 10)

3183185.992nd

Wet Cut

Carbon Steel(C45, HRc20)

15

5305309.99Blind HoleTapping

1st

CoolantMaterialTappingDepth (mm)

Feed(mm/rev.)

R.P.M.(rev./min.)

Vc(m/min.)

Test TypeIndex

◈ Test Report 1


나사산

Flute

1 Hole

210 Hole

나사산

Flute

1 Hole

210 Hole

나사산

Flute

1 Hole

210 Hole

나사산

Flute

1 Hole

210 Hole

Surface of MaterialChipCutting EdgeSurface of MaterialChipCutting Edge

Competitor B Tap (Total Tapping 210 Holes)Competitor A Tap (Total Tapping 210 Holes)


YG1 Combo Tap (Total Tapping 210 Holes)YG1 STD. Tap (Total Tapping 210 Holes)

- Picture of Test 1 - ① [Carbon Steel (C45, HRc20), Wet Cut]

- Spindle Load

: 2~16%

- Cutting Edge

: 8 part Chipping

- Spindle Load

: 2~16%

- Cutting Edge

: 2 part Chipping

- Spindle Load

: 2~16%

- Cutting Edge

: 8 part Chipping

- Spindle Load

: 1~17%

- Cutting Edge

: 4 part Chipping

Thread

Flute

Thread

Flute

Thread

Flute

Thread

Flute


1) Test 2 Report (M8 x 1.25 – YG1 STD., YG1 Combo Tap, Competitor A, B)

① 1st Test, Carbon Steel(C45, HRc20), Wet Cut → Combo Tap > YG1 STD. > B Tap > A Tap


◈ Test Report 2

Wet CutCarbon Steel(C45, HRc20)


1st


Feed(mm/rev.)

R.P.M.(rev./min.)

Vc(m/min.)

Test TypeIndex


나사산

Flute

1 Hole

204 Hole

나사산

Flute

1 Hole

204 Hole

파손부 1 Hole

159 Hole

나사산

Flute

1 Hole

204 Hole





- Spindle Load

: 1~12%

- Cutting Edge

: Rough

Burning

- Spindle Load

: 1~12%

- Cutting Edge

: Good

- Spindle Load

: 1~12%

- Cutting Edge

: Brake after

159Hole

- Spindle Load

: 1~12%

- Cutting Edge

: Rough

3 part Chipping

Thread

Flute

Brake

Thread

Flute

Thread

Flute



1) Test 3 Report (M10 x 1.5 – YG1 STD., YG1 Combo Tap, Competitor A, B)

① 1st Test, Carbon Steel(C45, HRc20), Wet Cut → Combo Tap > YG1 STD. > B Tap> A Tap


◈ Test Report 3

Wet CutCarbon Steel(C45, HRc20)


1st


Feed(mm/rev.)

R.P.M.(rev./min.)

Vc(m/min.)

Test TypeIndex


파손부 1 Hole

204 Hole

나사산

Flute

1 Hole

216 Hole

파손부 1 Hole

99 Hole

파손부 1 Hole

196 Hole





- Spindle Load

: 1~8%

- Cutting Edge

: Brake after

204Hole, Burning

- Spindle Load

: 1~8%

- Cutting Edge

: 3 part Chipping

- Spindle Load

: 2~9%

- Cutting Edge

: Brake after

99Hole, Burning

- Spindle Load

: 1~8%

- Cutting Edge

: Brake after

196Hole, Burning

Brake

Brake

Thread

Flute

Brake



1) Field Test 1 Report (M8 x 1.25 – YG1 Combo Spiral Tap, Competitor A, B)

① Stainless Steel, Wet Cut (S Company)→ Combo Tap(150%) > A Tap(100%) = B Tap(100%)

- RPM : 1200, Depth : 10mm, No. of Test Hole : 200 Holes (by Combo)- Comment about Combo Tap

: Excellent performance.Good Chip evacuation, Constant Chip Form.

2) Field Test 2 Report (M8 x 1.25 – YG1 Combo Spiral Tap, Competitor B)

① Cast Iron, Wet Cut (C Company)→ Combo Tap(120%) > B Tap(100%)

- RPM : 500, Depth : 10mm, No. of Test Hole : 3,600 Holes (by Combo)- Comment about Combo Tap

: Good for No. of Hole & wear resistant.Not Brake cutting edge at 3,600 Holes, Good Chip evacuation.

◈ Test Report 4 ( Field Test 1 )



① Carbon Steel(C45, HRc20), Wet Cut (Customer : H Company)→ Combo Tap(200%) > B Tap(100%)

- RPM : 300, Depth : 15~17mm, No. of Test Hole : 180 Holes (by Combo)- Comment about Combo Tap

: Possible to extra work than B Tap on MCT.Excellent performance.


① Chromium Molybdenum Steels(42CrMo4, HRc28), Wet Cut (Customer : M Company)→ Combo Tap(200%) > B Tap(100%)

- RPM : 200, Depth : 20mm, No. of Test Hole : 180 Holes (by Combo) - Comment about Combo Tap

: Better than YG1 Color-ring Tap & Competitor.Good Chip evacuation.

◈ Test Report 4 ( Field Test 2)


5) Field Test 5 Report (M6 x 1.0 – YG1 Combo Spiral Tap, Competitor A)

① Aluminium(Diecasting), Wet Cut (Customer : D Company)→ Combo Tap(110%) > A Tap(100%)

- RPM : 4000, Depth : 15mm, No. of Test Hole : 10,000 Holes- Comment about Combo Tap

: Good for No. of Hole & wear resistant.Excellent performance.

◈ Test Report 5 ( Field Test 3)


- END -Thank you

COMBO TAP - M'La Sales Corporationmla-sales.com/pdf/Combo Tap Brochure.pdf · Tap (Total Tapping 210 Holes) YG1 Combo Tap (Total Tapping 210 Holes) - Picture of Test 1 -①[Carbon

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