Surface treatment technology and mechanical manufacturing technology of stamping die

An important milestone in the development of CNC and computer-aided design metal stamping die manufacturing, regardless of the mold manufacturing accuracy, surface roughness, manufacturing cycle, and other aspects of assessment, CNC technology is the direction of mold development. Super-precision technology and composite technology that integrates electrochemical, ultrasonic, laser, and other technologies will have broad prospects. At the same time, the research and development of advanced digital measurement and automation systems will also be the goal of the long-term development of metal stamping die manufacturing technology.

Here is the content list:

• l Surface Treatment Technology of Stamping Dies

• l Mechanical Manufacturing Technology of Stamping Dies

Surface Treatment Technology of Stamping Dies

The part of the cold punching die is the cutting edge, and the punch is subjected to strong friction during punching and pulling out of the sheet, so the requirement for the punching die is that the surface of the cutting edge should have good wear resistance. Surface treatment can not only maintain sufficient strength and toughness of the matrix but also improve the wear resistance of the material surface. Commonly used metal stamping die surface strengthening treatment technology can be divided into three categories:

(1) Methods of changing the chemical composition of the surface of the substrate, such as metalizing, carburizing, nitriding, etc.;

(2) Methods that do not change the chemical composition of the substrate surface, such as laser surface modification technology, electron beam surface treatment, etc.;

(3) The method of forming a hardened layer on the surface of the substrate, such as chrome plating, thermal spraying, etc.

Each strengthening method has a certain scope of application, so to fully understand the characteristics of various surface strengthening treatment methods, it must be based on different conditions and different requirements for performance, such as wear resistance, adhesion resistance, toughness, and other different properties requirements to select a reasonable surface strengthening treatment method. Hago can custom metal stamping die according to your needs

Mechanical Manufacturing Technology of Stamping Dies

The mechanical manufacturing process of cold stamping dies usually refers to the manufacturing method of the main parts of the die, such as punch and die. The precision and surface quality of the main parts of the metal stamping die directly affect the service life of the die.

(1) The WEDM process has developed rapidly due to its advantages of high precision and high automation and has been widely used in mold manufacturing, forming tools, and precision and complex parts.

(2) The grinding process is also one of the important factors affecting the life of the mold. On the one hand, a reasonable grinding process will improve dimensional accuracy and surface roughness. At the same time, a reasonable grinding process such as the amount of grinding feed and the selection of grinding wheels can be used. It affects the generation of grinding cracks and ultimately affects the life of the metal stamping die.

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