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Automobile stamping die insert and laser strengthening manufacturing method thereof

A technology for stamping dies and manufacturing methods, which is applied in the field of automobile stamping die inserts and its laser-intensified manufacturing, which can solve the problems of limited service life of die inserts, deformation of die inserts, and high manufacturing costs, so as to improve service life and increase strength , high wear resistance effect

Pending Publication Date: 2021-03-05
重庆机电增材制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Automobile stamping die insert and laser strengthening manufacturing method thereof
  • Automobile stamping die insert and laser strengthening manufacturing method thereof
  • Automobile stamping die insert and laser strengthening manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] A laser strengthening manufacturing method for an automobile stamping die insert, comprising the following steps:

[0029] 1) Use ordinary 45# forged steel as the base material of the insert, machine the mold insert of the final working size on the base material, and process the working surface of the mold insert to 1mm below the final working size, that is, remove the mold by machining The surface layer with a thickness of 1mm on the surface of the insert is then tempered and tempered at 550°C;

[0030] 2) Prepare high-strength, wear-resistant alloy powder, the alloy powder is composed of the following components by weight percentage: C: 0.16%; Si: 0.01%; Cr: 18%; Ni: 0.27%; Mo: 0.3% ; Mn: 0.1%; Co: 0.02%; V: 0.03%; B: 0.18%, and the rest is Fe; wherein, the alloy powder is spherical particles with a particle size of 50-150 μm, and the alloy powder is dried in a vacuum oven at 80 ° C After keeping warm for 6 hours, add it to the powder feeding bucket to prepare for la...

Embodiment 2

[0036] A laser strengthening manufacturing method for an automobile stamping die insert, comprising the following steps:

[0037] Process the working surface of the waste mold insert (that is, the invalid mold insert) to 1mm below the final working size, that is, remove the surface layer with a thickness of 1mm on the surface of the waste mold insert by mechanical processing, and then return to the surface at 600°C. Fire quenching and tempering treatment, the hardness after quenching and tempering is 22-34HRC, and the comprehensive mechanical properties are improved at the same time;

[0038] Prepare high-strength, wear-resistant alloy powder, which is composed of the following components by weight percentage: C: 0.16%; Si: 0.01%; Cr: 18%; Ni: 0.27%; Mo: 0.3%; Mn : 0.1%; Co: 0.02%; V: 0.03%; B: 0.18%, and the rest is Fe; among them, the alloy powder is spherical particles with a particle size of 50-150 μm, and the alloy powder is kept in a vacuum oven at 80°C After 6 hours, a...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C38/02C22C38/04C22C38/44C22C38/46C22C38/52C22C38/54
CPCC23C24/103C22C38/02C22C38/04C22C38/44C22C38/52C22C38/46C22C38/54
Inventor 唐定超段虎明刘从庆
Owner 重庆机电增材制造有限公司
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