What are the characteristics of cold work steel? What does the cold bending performance reflect about the steel?

What are the characteristics of cold work steel? What does the cold bending performance reflect about the steel?

1. Heat softening capacity: heat softening capacity reflects the influence of temperature rise on hardness, deformation resistance and wear resistance of cold work steel during load bearing. Softening temperature (℃) and secondary hardening hardness (HRC) are the main indexes to characterize the softening resistance of cold work steel.

2.① high thermal hardness and high temperature wear resistance; ② High antioxidant capacity; (3) High thermal strength and high enough toughness, especially the hot forging steelwith large impact; ④ High thermal fatigue resistance to prevent cracking damage; In addition, hot work steel is generally large, but also requires high hardenability and thermal conductivity.

3.In general, the performance characteristics of cold work steel are high hardness, good toughness, strong fatigue resistance and excellent wear resistance, but the hardenability is poor and the processing is more difficult. Scope of application: cold work steel is suitable for making parts that need to be subjected to cold working many times, such as sheet metal dies, drawing dies, punching dies, bending dies, etc.