Dec 14,2025
Stamping die materials science: material selection how to determine die life and performance
Stamping die materials science: material selection how to determine die life and performance
In the world of metal stamping, the mold is the“Heart”, and the material of the heart directly determines the life of the mold, performance and the quality of the final product. The selection of dies for metal stamping, steel, is a delicate balancing act between hardness, toughness, wear resistance, and machinability.
The stamping die used for metal is subjected to extremely harsh working conditions: periodic impact load, severe friction, and local high temperature caused by plastic deformation. Therefore, the mold material must have a series of excellent performance. Hardness and wear resistance, are the primary indicators of resistance to wear during sheet metal stamping, particularly in High-strength low-alloy steel or coated materials. This is mainly determined by the amount and distribution of carbides such as vanadium carbide and molybdenum carbide in the steel. However, high hardness is often accompanied by brittleness, which leads to the second key indicator: toughness. Sufficient toughness to prevent chipping and cracking under high-speed impact or off-load conditions is critical for precision stamping dies with medium-thin punches and cutting edges.
Stamping Steel, its choice is also a knowledge. Commonly used die steels include: oil quenched tool steel (such as O1) , because of its good machinability, heat treatment deformation is small, often used in complex shape, high dimensional accuracy requirements of stamping tools and dies; Air-quenched medium alloy cold work die steels (e. g. a 2, D 2) , which have better wear resistance and hardenability, are widely used in progressive tools and dies, punches and dies, and powder high speed steels (e. g. ASP series) , with its unparalleled hardness, toughness and redness (the ability to maintain hardness at high temperatures) , it is the ultimate choice for ultra-high-strength materials and long life requirements, and is commonly used in progressive tools and composite dies, the key station of the.
In addition to the matrix material, surface treatment technology has also greatly expanded the performance of die steel boundaries. Nitriding (e.g. gas nitriding, ion nitriding) and PVD coatings (e.g. TiN, TICN, Tialn) can form a thin film with very high hardness and low friction coefficient on the mold surface, can significantly improve the ability to resist adhesive wear and abrasive wear, so that metal stamping tools and dies, the life of several times. The conclusion is clear: the strategic investment in mold materials is not a cost expenditure, but an efficient investment that can significantly reduce the unit cost, improve production stability and product consistency. Choosing the right“Armor” for your stamping die is the first step to winning the production campaign.
Previous: Integrated technology of precision welding and stamping
Next: Customized metal stamping die: engineering realization from concept to reality
1013 Min'an Avenue, Xiang'an District Xiamen City, Fujian Province, China
+86-13225990951
2605949828@qq.com
