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Cold Extrusion (Metal) Page Header
Applications
  • Die Casting
  • Hot Extrusion (Metal)
  • Hot Forging
  • Hot Stamping
  • Injection Moulding
  • Compression Moulding
  • Transfer Moulding
  • Blow Moulding
  • Extrusion (Plastics)
  • Blanking
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  • Cold Extrusion (Metal)
  • Fine Blanking
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Cold Extrusion (Metal)

The proper steel selection for the application depends primarily on the work materials type, strength, thickness and workpiece geometry. The most critical failure mechanisms are adhesive wear, galling, cracking, abrasive wear and plastic deformation.  In cold extrusion a punch applies a pressure to a slug of metal and causes it to flow in a controlled manner in the required direction.

Failure mechanisms in cold work tooling

Due to cyclic mechanical loading and sliding contact between work material and tool surface, the active surfaces of the tool are successively damaged. The destruction of the tool will sooner or later lead to quality problems on the formed parts (out of tolerance or bad surface qualities). The tool has then to be exchanged (total failure), reground or refurbished in some way.

This maintenance procedure means production standstill and accordingly loss of productivity. It is therefore very important that the tools can resist the different types of tool failure mechanisms in order to achieve high productivity and economical production. The selection of the right tool steel is thus directly linked to the resistance of the actual tool failure mechanism for the application.

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ASSAB XW-5

ASSAB XW-5 is high alloyed tool steel suitable for medium and long run tooling in applications where a very good abrasive wear resistance is needed. ASSAB XW-5 contains large carbides which are advantageous for abrasive wear resistance. In markets served by Uddeholm, ASSAB XW-5 is promoted as Sverker 3.

ASSAB XW-10

ASSAB XW-10 is a medium alloyed tool steel with a good resistance to both the abrasive and adhesive types of wear as well as good resistance to cracking. This combination makes ASSAB XW-10 an all purpose tool steel for medium run cold work applications. In markets served by Uddeholm, ASSAB XW-10 is promoted as Rigor.

ASSAB XW-42

ASSAB XW-42 is a high-carbon tool steel that consists of 12% Chromium. It has high wear resistance and toughness. This type of steel (AISI D2, DIN standard 1.2379, JIS SKD 11) is the most common steel in cold work applications worldwide.

CALMAX

Calmax has high toughness, good wear resistance and good polishability. It is a suitable tool for plastic mould applications. Same chemical composition as Carmo but delivered in soft annealed condition.

CALDIE

Caldie is a medium alloyed tool steel suitable for short and medium run tooling in applications where a combination of very high chipping resistance and compressive strength is required. The property profile makes Caldie a robust cold work tool steel for heavy duty blanking and forming of AHSS (Advanced High Strength Steel).

ASSAB 88

ASSAB 88 is a high alloyed tool steel with a very broad property profile. It is also a very good steel for all types of surface treatments. This combination means that ASSAB 88 is an extremely versatile conventional tool steel for medium run cold work tooling. In markets served by Uddeholm, ASSAB 88 is promoted as Sleipner.

ASSAB PM 23 SUPERCLEAN

ASSAB PM 23 SuperClean is powder high speed steel with excellent wear resistance and toughness. ASSAB PM 23 SuperClean is perfect for high volume cold work applications like blanking of harder materials, e.g. carbon steel or cold rolled strip steel. It is also suitable for forming thinner work materials. In markets served by Uddeholm, ASSAB PM 23 SuperClean is promoted as Vanadis 23 SuperClean.

ASSAB PM 30 SUPERCLEAN

ASSAB PM 30 SuperClean is powder high speed steel meant for cutting tools and other cold work applications. It has excellent wear resistance and toughness. The PM process gives a good machinability and grindability as well as a good dimension stability during heat treatment. In markets served by Uddeholm, ASSAB PM 30 SuperClean is promoted as Vanadis 30 SuperClean.

ASSAB PM 60 SUPERCLEAN

ASSAB PM 60 SuperClean is powder high speed steel suitable for cutting tools and other cold work applications. This is a premium steel with extreme wear resistance and high hot hardness. In markets served by Uddeholm, ASSAB PM 60 SuperClean is promoted as Vanadis 60 SuperClean.

VANADIS 4 EXTRA SUPERCLEAN

Vanadis 4 Extra SuperClean is powder tool steel for long run tooling. This is the most versatile PM tool steel on the market today, combining high wear resistance with very good ductility and resistance to chipping of edges. Excellent machinability in both soft and hard condition ensures advantages in both tool making and tool maintenance, where high demands on adhesive wear and chipping resistance are required.

VANADIS 10 SUPERCLEAN

Vanadis 10 SuperClean is a powder tool steel with the highest wear resistance of all the PM tool steel grades, making Vanadis 10 SuperClean suitable for the highest production volumes of abrasive materials. The PM process ensures better chipping resistance than the conventional produced high wear resistant tool steel.

VANCRON 40 SUPERCLEAN

Vancron 40 SuperClean is the most innovative PM tool steel on the market today. Solid state nitriding of the powder particles enables extremely high nitrogen alloy content, giving the tool an "internal surface coating", and the best resistance to galling and adhesive wear. The machinability in hard condition is the best of all the PM grades, ensuring benefits in tool making, as well as tool maintenance.

UNIMAX

Unimax is a high hardness electroslag remelted tool steel which provides great wear resistance even over extended time at elevated temperatures. This product is suitable for coating and nitriding. Unimax performs very well in precision forging, hot stamping and moulding of reinforced plastics.

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