A kind of laser spraying treatment method of cold stamping die surface

A technology of laser spraying and processing method, applied in coating, fusion spraying, metal material coating technology and other directions, can solve the problem of not having good surface repair function, achieve good consistency, high reliability, good resistance The effect of deformation toughness

Active Publication Date: 2022-08-05
和县卜集振兴标准件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In production and application, the requirements for the surface performance of cold stamping dies are diversified, so a single metal coating often cannot meet the quality requirements, and thermal spraying technology emerges as the times require. Thermal spraying can be roughly divided into flame spraying, arc spraying, plasma spraying, Laser spraying, mainly plasma spraying and high-velocity flame spraying in production applications, but does not have a good surface repair function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A laser spraying treatment method for the surface of a cold stamping die. On the basis of chrome plating on the surface of the die, laser spraying is used to spray a cermet coating on the die. The metal phase in the cermet coating accounts for 40%, the ceramic phase accounts for 30%, and the rest For the adhesive, include the following steps:

[0019] S1: First, the cold stamping die is chrome-plated to form a coating with a thickness of 1.0 microns on the surface. After washing with water, heat treatment is performed, first high-temperature quenching, high-temperature quenching temperature of 500 ° C, high temperature tempering 2 times, tempering temperature is 400 ° C, heat preservation 3 hours, finally cool down to 120°C with cold water, control the cooling rate at 13°C / min, and then cool to room temperature by natural wind;

[0020] S2: Grind the metal phase components into 20 mesh powder, put them into a glass mortar together with the ceramic powder, grind and pulv...

Embodiment 2

[0027] A laser spraying treatment method for the surface of a cold stamping die. On the basis of chrome plating on the surface of the die, laser spraying is used to spray a cermet coating on the die. The metal phase in the cermet coating accounts for 45%, the ceramic phase accounts for 35%, and the rest For the adhesive, include the following steps:

[0028] S1: First, the cold stamping die is chrome-plated to form a coating with a thickness of 1.3 microns on the surface. After washing with water, heat treatment is performed, first high temperature quenching, high temperature quenching temperature of 520 ° C, high temperature tempering twice, tempering temperature is 430 ° C, heat preservation 3.5 hours, finally cool down to 125℃ with cold water, control the cooling rate at 14℃ / min, and then cool to room temperature with natural wind;

[0029] S2: Grind the metal phase components into 25 mesh powder, put them into a glass mortar together with the ceramic powder, grind and pulv...

Embodiment 3

[0036] A laser spraying treatment method for the surface of a cold stamping die. On the basis of chrome plating on the surface of the die, laser spraying is used to spray a cermet coating on the die. The metal phase in the cermet coating accounts for 50%, the ceramic phase accounts for 40%, and the rest For the adhesive, include the following steps:

[0037] S1: First, the cold stamping die is chrome-plated to form a coating with a thickness of 1.5 microns on the surface. After washing with water, heat treatment is performed, first high-temperature quenching, high-temperature quenching temperature is 540 ° C, high temperature tempering 2 times, tempering temperature is 450 ° C, heat preservation 4 hours, and finally cool down to 130°C with cold water, control the cooling rate at 15°C / min, and then cool to room temperature by natural wind;

[0038] S2: Grind the metal phase components into 30 mesh powder, put them into a glass mortar together with the ceramic powder, grind and ...

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Abstract

The invention relates to the technical field of mold processing, and discloses a laser spraying treatment method for the surface of a cold stamping mold. The surface coating and surface modification composite treatment technologies are used to change the shape, chemical composition, organizational structure and stress state of the mold surface, so as to improve the The role of mold quality and life, using laser spraying, using cermet material, the coating material has the characteristics of high reliability, good consistency, fast response, spraying cermet coating on the mold to strengthen its surface, It can improve its hardness, viscosity resistance, impact resistance, wear resistance and thermal fatigue resistance, and has a strong repairing effect.

Description

technical field [0001] The invention belongs to the technical field of mold processing, and in particular relates to a laser spraying treatment method for the surface of a cold stamping mold. Background technique [0002] Stamping die is a special process equipment that processes materials (metal or non-metal) into parts (or semi-finished products) in cold stamping, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a die installed on a press to apply pressure to a material at room temperature to separate or plastically deform it to obtain the required parts. In the stamping die, various metal materials and non-metal materials are used, mainly carbon steel, alloy steel, cast iron, cast steel, cemented carbide, low melting point alloy, zinc-based alloy, aluminum bronze, synthetic resin, polyurethane Rubber, plastic, laminated birch boards, etc. The materials for making molds are required to have properties such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/06C23C4/123C23C4/02C21D1/18C25D3/56
CPCC23C4/06C23C4/123C23C4/02C21D1/18C25D3/56
Inventor 黎福胜
Owner 和县卜集振兴标准件厂
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