Automobile stamping die insert and laser strengthening manufacturing method thereof

Abstract

The invention provides an automobile stamping die insert and a laser strengthening manufacturing method thereof, and belongs to the technical field of die insert preparation. The method comprises thefollowing steps of: tempering, and hardening and tempering a die insert; preparing cladding layer alloy powder which is composed of C, Si, Cr, Ni, Mo, Mn, Co, V, B and the balance Fe; placing the dieinsert on a workbench to be clamped and positioned, and performing laser cladding on the outer surface of the die insert by using the alloy powder; and performing machining treatment on the die insertcoated with a reinforcing layer. According to the laser strengthening manufacturing method of the automobile stamping die insert, common forged steel or an ineffective die serves as a base material,the latest laser cladding manufacturing process is adopted, deformation of the die insert due to excessive heat input is avoided, precision is greatly improved, and meanwhile, production cost and material waste are reduced. The laser strengthening manufacturing method is simple, convenient and flexible in operation and has great popularization and application values in the field of automobile stamping die inserts.

Description

technical field [0001] The invention belongs to the technical field of mold insert preparation, and in particular relates to an automobile stamping mold insert and a laser strengthening manufacturing method thereof. Background technique [0002] High-strength steel plates are now widely used in automobile bodies, and different body shapes can be obtained by stamping with automobile body stamping dies. Therefore, the inserts of automobile stamping dies require comprehensive mechanical properties such as high hardness and high wear resistance. Traditional stamping die inserts are mostly made of cemented carbide, and the manufacturing cost is relatively high. However, during use, long-term alternating stress and Abrasive wear, resulting in a limited service life for the mold inserts. After the mold insert produced by the traditional method has cracks or wears out, the surface repair is usually carried out by the traditional surfacing welding method, but the surfacing welding r...

AI Technical Summary

Problems solved by technology

Therefore, the inserts of automobile stamping dies require comprehensive mechanical properties such as high hardness and high wear resistance. Traditional stamping die inserts are mostly made of cemented carbide, and the manufacturing cost is relatively high. However, during use, long-term alternating stress and Abrasive wear, resulting in limited life for mold inserts

After the mold insert produced by the traditional method has cracks or wears out, the surface repair is usually carried out by the traditional surfacing welding method, but the surfacing welding repair method is relatively extensive, with low precision and large waste of materials. At the same time, excessive heat input can easily cause mold insert deformation

Images