The cold working die steel is worn out or fails due to fracture, collapse force, and deformation out of tolerance due to the large deformation resistance of the material and the large pressure, bending force, impact force, and friction force on the working part of the die.
Performance requirements of cold working die:
1. High hardness and wear resistance, keep sharp edges when working.
2. With high strength, toughness, and certain thermal hardness, the blade is not easy to crack or collapse when working.
3. Good hardenability ensures high hardness and certain hardenability depth in a quenched state.
4. Good processability and formability, good quenching safety, small heat treatment deformation, and not easy to crack on complex sections.
Cold-working die steel has high hardness and wear resistance, high bending strength, and sufficient toughness, so as to ensure the smooth progress of the stamping process. Because it needs to bear the impact pressure when working, it also needs to have high wear resistance, and because the shape is complex, it is easy to produce stress concentration, so it is required to have high toughness; It means that the mold is large in size and complex in shape. It requires high hardenability, small deformation, and cracking tendency.
Reasonable selection of mold materials and implementation of the correct heat treatment process are the keys to ensuring the service life of the mold. The selection of die materials and the corresponding heat treatment process are important factors. According to the data, among all the die failure factors, the die material and heat treatment account for about 70%, which has become the main factor affecting the die life. Therefore, in the whole process of mold design and manufacturing, the selection of mold materials and whether the heat treatment process is appropriate is particularly important

Answers

• 
  What are the differences in thickness and production process between medium and thick steel plates and hot rolled steel plates? 20/12/2024 16:13:18
• 
  What are the differences between PE lining and plastic coating? 04/12/2024 17:18:59
• 
  What are the acceptance criteria for hot-dip galvanized square tubes? 03/12/2024 05:26:54
• 
  How to distinguish between 304 and 201 stainless steel plates? 29/11/2024 17:07:20
• 
  Stainless steel wire rope or galvanized steel wire rope, which one is stronger? 27/11/2024 15:03:48