Method for melt deposition of composite cladding layer through double-cylinder synchronous powder feeding based on 30CrMnSiA steel

A technology of synchronous powder feeding and melting deposition, applied in coating, metal material coating process, etc., can solve the problems of shortened service life of components, poor wear resistance, corrosion resistance, etc., achieve good bonding, ensure quality and performance , Eliminate the effect of stomata

Pending Publication Date: 2020-11-17
JIANGXI CHANGHE AVIATION IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] 30CrMnSiA steel is a medium-carbon tempered steel with high strength and good welding performance. It is widely used in the manufacture of shafts and pistons. However, the problems of poor wear resistance and corrosion resistance are exposed during the use of components, and the service life of components greatly shortened

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0027] This embodiment provides a process method for surface modification based on dual cylinder synchronous powder feeding fusion deposition of 30CrMnSiA steel, the method comprising the following steps:

[0028] Step 1: According to the drawings of 30CrMnSiA steel components, record and analyze the area to be clad, and the cladding equipment is topologically optimized to form the optimal cladding route. The workpiece of this embodiment is a 30CrMnSiA steel member.

[0029] Step 2: Before laser cladding processing, all mechanical processing or grinding needs to be completed on the area to be clad of the workpiece, such as: removing burrs, removing damaged parts, etc., to avoid burrs and damaged parts from affecting the performance of the cladding layer.

[0030] Step 3: Use absolute ethanol or acetone to clean the surface of the workpiece to be clad to ensure that the surface of the clad area is free of grease and dirt. The laser cladding process on the surface of the area t...

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Abstract

The invention provides a method for melt deposition of a composite cladding layer through double-cylinder synchronous powder feeding based on 30CrMnSiA steel. The method includes the steps that alloypowder which comprises 316 austenitic stainless steel metal spherical powder and WC metal spherical powder is selected; a to-be-cladded workpiece is preheated, wherein the preheating temperature is 500-690 DEG C; and laser cladding process parameters are set, laser cladding is conducted on the surface of the to-be-cladded workpiece, and the composite cladding layer is formed. According to the method, a high-energy density laser beam with better directivity, coherence and brightness is input as energy, so that rapid cooling and rapid heating in the whole processing process are realized, and micro-metallurgical cladding modification is realized on a 30CrMnSiA steel base material.

Description

technical field [0001] The invention belongs to the technical field of laser melting and deposition, and relates to a process method for realizing surface modification by dual cylinder synchronous powder feeding melting deposition based on 30CrMnSiA steel. Background technique [0002] 30CrMnSiA steel is a medium-carbon tempered steel with high strength and good welding performance. It is widely used in the manufacture of shafts and pistons. However, the problems of poor wear resistance and corrosion resistance are exposed during the use of components, and the service life of components greatly shortened. Therefore, it is necessary to modify its surface to improve its wear resistance. Contents of the invention [0003] The purpose of the present invention is to provide a process method for surface modification based on double-cylinder synchronous powder feeding (316 / WC) melting deposition of 30CrMnSiA steel, which can effectively improve the overall wear resistance and co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 应俊龙巢昺轩李智勇刘小丹叶祥林熊曦耀
Owner JIANGXI CHANGHE AVIATION IND
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