Laser repairing process for automobile mold

A technology for laser repair and automotive molds, which is applied in metal material coating process, ion implantation plating, coating, etc., can solve the problems of product quality decline, insufficient hardness, large mold deformation, etc., and achieve improved hardness and wear resistance sexual effect

Active Publication Date: 2012-10-17
中科恩吉瑞特(烟台)科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In response to this situation, most of the current enterprises use ordinary surfacing welding to repair automobile molds. However, since most of the mold materials are high-carbon alloy steel or cast steel, ordinary surfacing welding will cause large deformation and insufficient hardness to the mold. , Easy to crack and other shortcomings, which seriously affect the accuracy of the mold, resulting in a decline in the quality of the products produced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0017] The specific steps of the laser repair process of the automobile mold of the present embodiment are as follows:

[0018] A. Treat the surface of the mold to be repaired, and inspect and analyze the mold.

[0019] Remove the dust, oil, rust, etc. on the surface; record the original use conditions, hardness and mechanical performance parameters of the mold; detect the size of each part of the mold, determine the wear part and its wear amount; remove the right angle of the wear part by grinding, and remove the wear part the fatigue layer and wash it.

[0020] B. Heat the mold at a low temperature, the heating temperature is 100°C, to remove the water vapor and oil gas on the surface of the mold base.

[0021] C. According to the inspection and analysis results of the mold, program the cavity of the worn part of the mold (programming can use the numerical control machining simulation system of Siemens), formulate the process parameters, first perform laser cladding on the ...

Embodiment 2）

[0027] The rest of the laser repair process of the automobile mold of the present embodiment is the same as that of Embodiment 1, except that:

[0028] The composition and weight percentage of the alloy powder used are C: 0.08%, Cr: 15%, B: 1.5%, Si: 1%, Mo: 0.5%, Mn: 8%, W: 6%, TiO 2 : 8%, the rest is Fe.

[0029] The average hardness of the surface of the automobile mold repaired by this process is 56.5HRC, and the surface hardness at the lowest hardness value of all testing points is 55.2HRC.

Embodiment 3）

[0031] The rest of the laser repair process of the automobile mold of the present embodiment is the same as that of Embodiment 1, except that:

[0032] The composition and weight percentage of the alloy powder used are C: 0.1%, Cr: 13%, B: 2.5%, Si: 2%, Mo: 1.2%, Mn: 12%, W: 12%, TiO 2 : 15%, the rest is Fe.

[0033] The average hardness of the surface of the automobile mold repaired by this process is 57.8HRC, and the surface hardness at the lowest hardness value of all testing points is 56.3HRC.

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PUM

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Abstract

The invention relates to a laser repairing process for an automobile mold. The repairing process comprises the following steps of: (A) processing the surface of the mold, and carrying out detection and analysis on the mold; (B) heating the mold at a low temperature; (C) programming a cavity of a worn part of the mold according to a detection and analysis result of the mold, setting process parameters, and sequentially carrying out laser cladding on edges and corners of the mold and plane parts and step parts on the mold; and (D) detecting, wherein alloy powder adopted by the process comprises the following components in percentage by weight: less than or equal to 0.1% of C, 10-13% of Cr, 1.5-2.5% of B, 1-2% of Si, 0.5-1.2% of Mo, 8-12% of Mn, 6-12% of W, 2.5-15% of TiO and the balance of Fe. The laser repairing process for the automobile mold can be used for carrying out laser cladding on the worn parts and enabling the surface hardness and the sizes of the worn parts to meet a using requirement.

Description

technical field [0001] The invention relates to a laser cladding method, in particular to a laser cladding repair method for a mold surface. Background technique [0002] Automobile molds are the general term for molds for punching automobile body stamping parts, such as roof flanging dies, beam reinforcement plate pressing dies, etc. Automobile molds play a very important role in the automobile manufacturing industry. In recent years, with the rapid development of the domestic automobile manufacturing industry, my country's automobile mold industry has developed very rapidly and has made great progress. However, compared with the advanced level of foreign automobile mold manufacturing, there is still a significant gap. As the technical requirements and product quality requirements of automobile mold manufacturing are getting higher and higher, and under the strong competition of foreign-funded enterprises with stricter technical requirements, the domestic automobile mold ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/10
Inventor 邓琦林何建方
Owner 中科恩吉瑞特(烟台)科技发展有限公司
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