Hot Stamping

Hot stamping has rapidly become a complement to cold forming in the automotive industry – and no wonder. By using a heated blank that forms and hardens quickly in the die, parts can be made larger, stronger and more complex than ever before. This means fewer structural parts per vehicle, to the tune of 30-35% weight reduction of individual parts. Naturally, this places severe demands on the tool steel used in the dies. For instance, to function reliably at the temperatures involved in the tool steel, it needs to have excellent thermal conductivity and hot yield strength as well as high toughness and ductility. Hot stamping already means a great advantage over traditional production methods. By choosing the right tool steel you can maximize this advantage. With steel from Uddeholm, it is possible to avoid common problems and go straight for longer, more predictable, production runs and reduced cycle times.

Uddeholm Caldie

40%

Abrasive wear resistance

70%

Adhesive wear resistance

70%

Ductility/edge chipping resistance

60%

Toughness/gross cracking resistance

62%

Hardness (HRC) max

Uddeholm Dievar

45%

Hot wear resistance

80%

Plastic deformation resistance

75%

Heat checking resistance

85%

Premature cracking resistance

Uddeholm Impax Supreme

50%

Machinability

30%

Wear resistance

60%

Weldability

90%

Toughness

Uddeholm Orvar Supreme

40%

Hot wear resistance

40%

Plastic deformation resistance

60%

Heat checking resistance

50%

Premature cracking resistance

Uddeholm QRO 90 Supreme

55%

Hot wear resistance

60%

Plastic deformation resistance

80%

Heat checking resistance

35%

Premature cracking resistance

Uddeholm Unimax

60%

Hot wear resistance

60%

Plastic deformation resistance

70%

Heat checking resistance

40%

Premature cracking resistance

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