DieAce [Overview]
Die Materials■Machining conditions (Reference)

DieAce is a material developed for draw dies for press
stamping. It is a highly hardened special copper alloycasting. DieAce can smoothly function without lubrication inharsh areas where scoring or seizure may occur. This die
material has excellent durability.

CutterDrilling

Super hard type K

Milling（1）Since the material is a special copper alloy casting which can be built to precision, adesired shape can be designed and machining allowance is small. This can accordingly
reduce the manufacturing hours.
（2）Since DieAce is excellent in wear resistance and lubrication, the die life can be extended
and the draw process can be reduced.
（3）Since DieAce has good heat conductivity and sliding property, there is no scoring on panels
or dies.

SO390vThe material is good for cutting and is excellent in wear resistance and self-lubrication.
SO350vThe material is highly hardened and is suitable for forming stainless steel or high

35～40

20～40

Feed

0.1～0.15

0.1～0.15

Rough cutting

Cutting speed

125～15070～80High speed cutter

Feed＊10.5～0.8

0.1～0.15(Super hard type K)

Cut

1.0～2.0

1.0～2.0

Finish machining

Cutting speed

150～160

150～160

Normal tip

Feed＊10.1～0.2

0.05～0.1(Super hard type K)

Cut

0.2～0.5

0.2～0.5

Rough cutting

Cutting speed

250～350

20～40

Chipping typeFeed＊10.15～0.25

0.15～0.25
1.0～2.0(Super hard type K)

Cut

3.5～5.0

Finish machining

Cutting speed

150～180

20～40

Solid

Feed＊10.05～0.1

0.05～0.1(Super hard type K)

Cut

0.05～0.1

0.05～0.1

High speed steel

Cutting speed

1～21～2Cutting speed

10～15

1～3

Feed

0.1～0.15

0.05～0.1

Rough cutting

Cutting speed

150～200

50～70

h50

Feed＊1

0.3～0.7

0.1～0.3＜10.0SO330vThe material is good for welding. It is the most popular material.

（1）Metal microstructure
DieAce is an aluminum bronze casting consisting of 5 elements; Cu, Al, Mn, Fe and Ni. The
main structure consists of 3 elements; Cu, Al and Mn. With addition of Fe, a fine structure isachieved. With addition of Ni, corrosion resistance is improved.

Cutting speed

End milling

Reaming■FeaturesSO350/SO330
Wet machining(side machining)

Tapping

strength steel.

SO390
Dry machining

High speed steel

カム用スライド部品■Features of DieAce

Machining conditions

Machining
Classification＜5.0

Ball end mill(Super hard type K)

Cutmachining

Finish machining

Cutting speed

＜200

＜100

h10

Feed＊1

0.3～0.5

0.3～0.5(Super hard type K)

Cut

＜0.3

＜0.3

Die
Materials

What is DieAce SO390, SO350 and SO330

Unit: Speed (m/min), Feed (mm/rev), Cut (mm)（2）Physical properties＊1 Feed unit of milling (mm/cutter)SO390

V=x dnd: Cutter diameter (mm), n: Revolution
1000g/cm3

7.2

7.6

7.6

Conditions may vary depending on the machine.

1.71

1.71

1.70

cal/ (cm･sec)

0.11～0.12

0.20

0.13～0.15■For Operation℃

960～1030

985～1040

985～1040

145

135

135

Linear expansion coefficient
Melting point

SO330

10 － 5/℃

Specific gravity
Thermal conductivity

SO350

Modulus of longitudinal elasticity Gpa

Always machine the surface with a sticker, which is put on the surface of each DieAce atthe time of delivery, indicating "Please use the surface with a sticker as the sliding surface".
Machining the other surfaces may result in quality issues.

（3）Mechanical properties

HardnessElongation
Tensile strength

HB

SO390

SO350

SO330

280 or more

330 or more

280 or more%

0.5 or more

0.5 or more

1 or more

N/mm2

600 or more

780 or more

850～950361

362

Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved.

Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved.

DieAceDie Materials■Major Applications

Catalog No.

Die Ace can not only be used for the die face as draw die materials but, also as a part of local
forming die or as sectional block in the flange or restrike die material.

SO390
SO350
SO330

Dies for Automotive■For your order（1）Provide us the casting wood pattern of the die insert or the polystyrene foam pattern.
（2）If a drawing is supplied, we will be able to manufacture wood pattern or polystyrene foampattern.
(mm)

Catalog No.

Width

LengthThickness

Remark

SO390
SO350
SO330

1,000 or less

1,000 or less60〜200500kg or less

1,000 or less

1,000 or less60〜200500kg or less

1,000 or less

1,500 or less60〜200500kg or less

Rear floorWheel house (inner)

Wheel house (outer)

Oil panRoof side inner

Rear pillar (outer)

カム用スライド部品（3）Please order the products within the range from the table below:

Please contact your local sales representative if your request is out of above conditions.

（4）The finish allowance (one side) is as shown in the table below.
Allow shrinkage of 18/1000.

SO390
SO350
SO330

25/1000
22/1000(mm)

Casting size

F 300 F 500 F 800 D800

Surface used for die stamping

5.0

5.0

7.5

Machining surface other than die stamping

5.0

5.0

7.5

7.5
7.5

Surface used for die stamping

5.0

7.5

10.0

10.0

Machining surface other than die stamping

5.0

5.0

5.0

7.5

（5）The appearance for delivery shows finishing allowance of 5 to 10 mm on the die face casting.

OthersvRear floor, bumper side, side sill outer, front bumper, center pillar outer, pillar outer lower,radiator grille, rear fender, rear seat backDie
Materials

Assembly
Catalog No. allowance

Other dies
Draw die for kitchen:

Dies for kitchen sink, dies for kitchen appliances, dies fortableware, etc.

Draw die for air conditioner:

Draw dies for gas water heater front cover, kerosene heater tank, etc.

Draw die for electric appliances: Dies for refrigerator, electronic microwave oven, washing machine,pot, electric rice cooker, gas burner table, lighting appliances, etc.
Draw die for heavy electric machines: Draw dies for control panel box, motor case, motor cover, etc.
Draw die for washing and water equipment: Draw die for wash basin, dies for washing equipment, draw die forbath, dies for various water equipment, etc.
Roll forming die:Car door sash roll forming, pipe roll forming, window sash roll forming

Forming die for steel pipes:

Tool for pipe bender, pipe joint draw die, bend die for various
steel pipes, etc.

Other dies:

Draw dies for governor cleaner, air cleaner house, stainlesssteel, etc.

363

364

Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved.

Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved.