Alumec_89_datablad

HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIMACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PPROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KN OWLEDGE UNDERSTANDING MACHWORLDS LEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACLENCE LONG LASTING TOOLS GLOBAL COMMITMENT TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLNEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHWORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS NETWORK OF EXELLENCE WORLDWIDE PRESENCE LONG DURABILITY RELIABILITYDUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTINGHARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HAAUTOMOTIVE A NEW WAY OF THINKING CUSTOMER BENEFITS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE CUSTOMER BEEVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STREARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESTHINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF TTION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY CUSTOMER BENEFITS LONG LASTING TOOLS TOTAL ECONOMYNESS STRENGTH INNOVATION GLOBAL COMMITMENT KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTINHARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HAAUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TLEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING CUSTOMER BEECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY NETWORK OF EXELLENCE LONPARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PMACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS HDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERRELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS GLOBAL COMMITMENT PARTNERSHIP HARDNESS WORLDWIDE PRESEMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUSTLEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILIWORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBSTRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY NETWORK OF EXELLENCE LONG LASTING THARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS CUSTOMER BENEFITS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING EXELLENCE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPKNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPRELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITYMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY CUSTOMEMATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EALING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF TUNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOORESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDTOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION GLOBAL COMDAY LONG LASTING TOOLS TOTAL ECONOMY CUSTOMER BENEFITS THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWWAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTINNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDSSTRENGTH INNOVATION KNOWLEDGE GLOBAL COMMITMENT UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOONESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTIS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS GLOBAL COMMITMENT PPROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHWORLDS LEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACTHE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLSPARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH P ALUMEC 89Y LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERI-GH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING ARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING INABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE HINABILITY CUSTOMER BENEFITS TRUST IS SOMETHING YOU EARN, EVERY DAY NETWORK OF EXEL-DWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A ING YOU EARN, EVERY DAY NETWORK OF EXELLENCE LONG LASTING TOOLS TOTAL ECONOMY THE RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE

OLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMAN- TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP

DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY RDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS NEFITS UNDERSTANDING MACHINABILITY GLOBAL COMMITMENT TRUST IS SOMETHING YOU EARN,

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LEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW WAY OF THINKING HIGH PERFOR-

R BENEFITS LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING RN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOO-HINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE

LING MATERIALS PARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY ERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS MITMENT KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST IS SOMETHING YOU EARN, EVERY IDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING PROBLEMS AUTOMOTIVE A NEW YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY CUSTOMER BENEFITS THE WORLDS OMOTIVE A NEW WAY OF THINKING HIGH PERFORMANCE DUCTILITY TOUGHNESS STRENGTH LEADING SUPPLIER OF TOOLING MATERIALS HIGH PERFORMANCE DUCTILITY TOUGHNESS LS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS PARTNERSHIP HARD-ILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING MACHINABILITY TRUST ARTNERSHIP HARDNESS WORLDWIDE PRESENCE LONG DURABILITY RELIABILITY RESULTS SOLVING INABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY THE HINABILITY TRUST IS SOMETHING YOU EARN, EVERY DAY LONG LASTING TOOLS TOTAL ECONOMY ROBLEMS AUTOMOTIVE A NEW WAY OF THINKING CUSTOMER BENEFITS HIGH PERFORMANCE DUC-

CUSTOMER BENEFITS TOTAL ECONOMY THE WORLDS LEADING SUPPLIER OF TOOLING MATERIALS ERFORMANCE DUCTILITY TOUGHNESS STRENGTH INNOVATION KNOWLEDGE UNDERSTANDING

Kokmose 8, 6000 Kolding, Tlf . : 75517066 Fax: 75517044, E-mail : [email protected], www.uddeholm.dk

ALUMEC 89

2

SS-EN ISO 9001SS-EN ISO 14001

This information is based on our present state of knowledge and is intended to provide generalnotes on our products and their uses. It should not therefore be construed as a warranty ofspecific properties of the products described or a warranty for fitness for a particular purpose.

Classified according to EU Directive 1999/45/ECFor further information see our Material Safety Data Sheets.

Edition 6, 06.2011The latest revised edition of this brochure is the English version,which is always published on our web site www.uddeholm.com

ALUMEC 89

3

GeneralAlumec 89 is a high strength aluminium alloysupplied in the form of hot rolled, heat treatedplate. It undergoes a special cold stretchingoperation for maximum stress relieving.

Thanks to its high strength and good stabil-ity, Alumec 89 has become widely used in thetooling industry.

Delivery condition: heat treated to 146180Brinell.

Alumec 89 has the following characteristicswhich make it suitable for many types of toolsespecially plastics moulds:

Excellent machinabilityHigh cutting speeds, reduced machining time,lower tooling costs, quicker deliveries.

Low weightThe low weight, which is approximately 1/3of the weight of steel, allows easier andmore convenient tool handling. Low inertiamakes it possible to speed up closing andopening of moulds.

High thermal conductivityCycle times are reduced and less compli-cated cooling systems may be used.

Good stabilityA special stress relieving operation guaran-tees minimal deformation during and aftermachining.

Good corrosion resistanceGood resistance against all commonly usedplastics materials.

Application areasThe properties and characteristics whichAlumec 89 offers make it an ideal material forprototype tools and for moulding short andmedium length production runs which are notsubjected to high pressures or abrasiveplastics.

Considerably shorter tool making times,lower tooling costs and shorter cycle timesgive valuable savings both for the tool makerand the tool user when using Alumec 89.

Proto- Short Medium LongApplication areas types runs runs runs

Blow moulding X X X X

Vacuum forming X X X X

Foam moulding X X X (X)

RIM-moulding X X X (X)

Injection mouldingof thermoplastics X X (X)

Rubber moulding X X

Holders and supportplates, jigs and fixtures

Tooling category

Suitable for surface treatmentsAlumec 89 can be hard anodized, hardchromium or nickel plated for increasedhardness, wear resistance and corrosionresistance.

Alumec 89 tool.

ALUMEC 89

4

Cricket Software

PropertiesPhysical dataValues at room temperature unless statedotherwise.

Density kg/m3 2 830lbs/in3 0.102

Modulus of elasticity N/mm2 71 500psi 10.3 x 106

Coefficient of thermal expansionper C from 20C to 100C 23 x 106

per F (68212F) 12.8 x 10-6

Thermal conductivity W/m C 165Btu in/ft2h F 1 144

Specific heat capacity J/kg C 890Btu/lb F 0.20

Tensile strength Yield strengthN/mm2 N/mm2

Plate (thickness), mm

> 10 50 590 550> 50100 570 520>100150 550 500>150200 535 485>200300 430 365

Round bar , mm

40 680 630100 680 620200 670 610

Note that the plate is tested in the transversedirection and the round bar in the lengthdirection.

Tensile strengthTensile strength values, which for most practi-cal purposes can be compared to compressionstrength values, should be regarded as typical.

Values at room temperature for differentplate thicknesses.

HARDNESS DISTRIBUTIONTHROUGH THE PLATE CROSS SECTION

MachiningGeneralA major advantage when machining aluminiumalloys is the possibility of using high cuttingspeeds. The reason is the low cutting forceneeded compared with steel and brass.Because of the excellent combination ofmechanical and physical properties in Alumec89 the maximum cutting speed possible is veryhigh, when suitable cutting tools are used.When using high speed milling machines, cutt-ing speeds exceeding 3 500 m/min. (11 500 ft./min.) has been used with good results.

Cutting tool design and materialAlthough aluminium alloys give low cuttingforces, it is necessary to use high qualitycutting tools. In order to achieve the highestpossible cutting speed the use of cementedcarbide tools, especially during turning and endmilling, is ideal.

The same cutting tools normally used forsteel can also be used for machining of Alumec89. However, for good production economy,tools with large positive angles should be used.The flute should have a large chip space and bepolished to prevent chips clogging the cutter.

When sawing Alumec 89, a coarse tooth sawblade is recommended.

Cooling/lubricationThe purpose of cutting fluid is to cool thework piece and to lubricate the cutting tool.Because of the high cutting speeds possiblewhen machining Alumec 89, cooling isimportant, although the heat conductivity ofAlumec 89 is very high. Good lubrication is ofspecial importance during deep hole drilling, asthere is a prolonged contact between chipsand tool.

Cutting fluids recommended for steel maysometimes discolor the aluminium surface, ifPH values are high. Most manufacturers ofcutting fluid have universal fluids suitable forboth steel and aluminum.

190

180

170

160

150

140

Vickers hardness 10kg VPN

150 mm

ALUMEC 89

AA 7075-T651

HB180

170

160

150

140

130

Center line

ALUMEC 89

5

Cutting datarecommendationsThe cutting data below are to be consideredas guiding values which must be adapted toexisting local conditions. Further information isgiven in the technical report Cutting datarecommendations.

Milling Alumec 89.

Rough Fine Fine Turningturning turning turning with highwith with with speed

carbide carbide PCD1) steel

Cuttingspeed (vc)m/min 6001200 12002500 6001500 250300f.p.m. 19803960 39608250 19804950 825990

Feed (f)mm/r 0.31.0 0.3 0.3 0.3i.p.r. 0.0120.04 0.012 0.012 0.012

Depth ofcut (ap)mm 26 0.52 0.53 0.53inch 0.080.24 0.020.08 0.020.12 0.020.12

CarbidedesignationISO K20 K10

1) Polycrystallin diamond.

Turning

Rough Fine Fine Millingmilling milling milling with highwith with with speed

carbide carbide PCD1) steel

Cuttingspeed(vc)m/min 6001000 10003000 8004000 250400f.p.m. 19803300 33009900 265013200 8251320

Feed (fz)mm/tooth 0.20.6 0.10.2 0.050.2 0.4in/tooth 0.0080.024 0.0040.008 0.0020.008 0.016

Depth ofcut (a

p)

mm 28 2 2 8inch 0.080.32 0.08 0.08 0.32

Carbidedesig-nationISO K20 K10

MILLINGFACE AND SQUARE SHOULDER FACE MILLING

1) Polycrystallin diamond.

END MILLING

Solid Carbide Highcarbide indexable insert speed steel

Cuttingspeed (v

c)

m/min 300500 300500 120250f.p.m. 9901650 9901650 400825

Feed (fz)

mm/tooth 0.030.201) 0.080.201) 0.050.351)

inch/tooth 0.0010.0081) 0.0030.0081) 0.0020.0141)

CarbidedesignationISO K20

1) Depending on the radial depth of cut and cutter diameter

DrillingHIGH SPEED STEEL TWIST DRILL1)

Drill diameter Cutting speed (vc) Feed (f) mm inch m/min f.p.m. mm/r i.p.r.

5 3/16 5070 165230 0.080.20 0.0030.008

510 3/163/8 5070 165230 0.200.30 0.0080.012

1015 3/85/8 5070 165230 0.300.35 0.0120.014

1520 5/83/4 5070 165230 0.350.40 0.0140.016

1) Point angel 118 helix angle 1630

Indexable Solid Carbideinsert carbide tip1)

Depth of cut(v

c)

m/min 200400 200300 150250f.p.m. 6601320 660984 495825

Feed (f)mm/r 0.050.252) 0.100.302) 0.150.352)

i.p.r. 0.0020.012) 0.0040.0122) 0.0060.0142)

CARBIDE DRILL

1) Drill with replaceable or brazed carbide tip2) Depending on drill diameter

ALUMEC 89

6

Polishing guidelinesGeneralMaintain a clean work environment and ensurethat the work piece is flushed with an appro-priate industrial solvent to prevent accumula-tion of polishing debris.

Use large tools wherever possible to preventhigh levels of localized pressure leading tosurface degradation.

Renew grinding paper frequently and changedirection of grinding between grades. Whenworking towards a mirror finish use copiousquantities of lubricant such as a light oil.

See separate leaflet Polishing of Tool Steelfor detailed information on polishing.

TechniquesBoth mechanical and manual techniques maybe used. When seeking a mirror finish the useof power tools should be avoided.

MediaCarborundum paper should be used forgrinding starting with grades 300 through to800. When seeking a mirror finish, continuewith 1200 grade paper and if necessaryfollowed with 6 micron/3 micron diamondpaste.

Electrical DischargeMachining (EDM)Machine settings are similar to those used forsteel but may need more power to stabilize.Metal re-moval rates are 3 to 4 times that ofsteel necessitating good flushing to avoidarcing.

Copper electrodes give best results andshow less wear. Roughing electrodes are rarelyrequired.

GrindingA general grinding wheel recommendation isgiven below. For grinding of Alumec 89 usesilicon carbide abrasive. Cutting oil is recom-mended as grinding fluid.

Type of grinding Wheel recommendation

Face grinding straight wheel C 46 H V

Face grinding segments C 24 G V

Cylindrical grinding C 60 J V

Internal grinding C 46 H V

Profile grinding C 100 L V

ALUMEC 89

7

Repair weldingAlumec 89 may be repair welded using eitherMetal Inert Gas (MIG) or Tungsten Inert Gas(TIG) pro-cesses, though TIG is not recom-mended for large scale repairs.

General guidelines

EQUIPMENT

400 Amps rating, Wire Feed Motor 7.510 m/min (2533 f.p.m.) (compared to3.7 m/min [12 f.p.m.] for steel).

WELDING WIRE

AA5356 (Al 5 % Mg), AA5556A (Al 5.2 % Mg)or AA5087 (Al 4.5 % MgMnZr).MIG 1.6 mm (0.063 in.) diameter. TIG 2.43.2 mm (0,0950,126 in.).

PRE-WELD PREPARATION

Vertical faces should be machined to an angleand surfaces to be welded, degreased. Oxidelayer must then be removed using rotary wirebrushing and welding carried out within eighthours.

Surface treatmentHard anodising

Alumec 89 can be hard anodised for higherwear resistance, giving a surface hardnessequivalent to about 65 HRC in steel. Usualcoating thickness is 2050 m. Anodising isused to a limited degree in mould cavities dueto the difference in expansion of the surfacelayer relative to the underlying aluminium. Thiscan lead to hairline cracking, spoiling thesurface appearance of mouldings. This surfaceis usually acceptable on non-moulding toolparts, such as slides, wear guides, leader pinsand bushes, ejector pins, etc.

Note: The anodising will cause dimensionalchanges in the workpiece, and allowanceshould, therefore, be made. Increase indimension is about 50% of the oxide layerthickness. The oxide layer may be impregnatedwith PTFE to reduce adhesion of the plastic.

Hard Chrome PlatingHardness levels up to and equivalent to80 HRC are possible using processes whichhave been developed for aluminium alloys.Plated layer thickness is typically 0.10.2 mm(0.004" to 0.008").

Photo-etchingAlumec 89 is perfecat for photo-etchingthanks to its homogeneous structure.

Chemical Nickel PlatingHardness levels equivalent to 50 HRC arepossible. Plated layer thickness is typically0.030.1 mm (0.001"0.004") whilst adhesionand corrosion resistance are generally superiorto a chrome plated finish.

Alumec 89 is ideal for high-strength, lightweight die-sets.

ALUMEC 89

8

Further informationContact your nearest Uddeholm representa-tive for more information about aluminiumand special steel for tools.

PRE-HEATING

Pre-heat to 50130C (120270F) to offsetthe chilling effect and high thermal conduc-tivity of Alumec 89. Maximum metal tem-perature during welding should not exceed200C (390F) in order to avoid cracking afterwelding.

ALUMEC 89

9

ALUMEC 89

10

www.assab.com www.uddeholm.com

Network of excellenceUDDEHOLM is present on every continent. This ensures you

high-quality Swedish tool steel and local support wherever you

are. ASSAB is our wholly-owned subsidiary and exclusive sales

channel, representing Uddeholm in various parts of the world.

Together we secure our position as the worlds leading supplier

of tooling materials.

UD

DEH

OLM

110604.200 / TRYC

KERI KNA

PPEN, KA

RLSTAD

201106

UDDEHOLM is the worlds leading supplier of tooling materials. This

is a position we have reached by improving our customers everyday

business. Long tradition combined with research and product develop-

ment equips Uddeholm to solve any tooling problem that may arise.

It is a challenging process, but the goal is clear to be your number one

partner and tool steel provider.

Our presence on every continent guarantees you the same high quality

wherever you are. ASSAB is our wholly-owned subsidiary and exclusive

sales channel, representing Uddeholm in various parts of the world.

Together we secure our position as the worlds leading supplier of

tooling materials. We act worldwide, so there is always an Uddeholm

or ASSAB representative close at hand to give local advice and support.

For us it is all a matter of trustin long-term partnerships as well as in

developing new products. Trust is something you earn, every day.

For more information, please visit www.uddeholm.com, www.assab.com

or your local website.