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Steel 35# based method for melting and depositing composite cladding layer through synchronous powder feeding by two cylinders

A technology of synchronous powder feeding and melting deposition, which is applied in coating, metal material coating process, etc., can solve the problems of shortened service life, poor corrosion resistance and low strength of components, and achieve the effect of strength improvement

Pending Publication Date: 2020-11-06
JIANGXI CHANGHE AVIATION IND
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0002] In addition to being used as building materials, 35# steel is widely used in the manufacture of various mechanical parts, but the problems of low strength and poor corrosion resistance are exposed during the use of components, and the service life of components is greatly shortened

Method used

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Embodiment 1

[0027] In this embodiment, with the aid of laser additive manufacturing equipment, a process method of simultaneous powder feeding (Ni50 or Ni60 metal powder; 316 austenitic stainless steel metal alloy powder) based on 35# steel double cylinders is adopted to achieve surface modification. The single layer is 0.2-0.6mm independently and controllable, which can modify the surface of the 35# steel substrate and increase the service life.

[0028] This embodiment mainly includes the following steps:

[0029] The first step: According to the drawing of the 35# steel workpiece, record and analyze the area to be cladding of the workpiece. The cladding equipment is topologically optimized to form the optimal cladding route and plan.

[0030] Step 2: Before laser cladding processing, the area of ​​the workpiece to be cladding needs to complete all mechanical processing or polishing, such as removing burrs and removing damaged parts.

[0031] Step 3: Use absolute ethanol or acetone to clean the...

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Abstract

The invention provides a steel 35# based method for melting and depositing a composite cladding layer through synchronous powder feeding by two cylinders. the method comprises the following steps: selecting alloy powder, wherein the alloy powder comprises Ni50 or Ni60 metal powder and 316 austenitic stainless steel metal spherical powder; preheating a to-be-clad workpiece at the preheating temperature of 500-690 DEG C; setting the laser cladding technological parameter, and carrying out laser cladding on the surface of the to-be-clad workpiece to form a composite cladding layer; and after laser cladding is finished, carrying out thermal treatment at the temperature of 200-500 DEG C to eliminate thermal stress generated through laser cladding. The steel 35# based technological method for melting and depositing through synchronous powder feeding by two cylinders realizes surface modification and can effectively improve the overall strength and corrosion resistance of a structure.

Description

Technical field [0001] The invention belongs to the technical field of laser melting deposition, and relates to a process method based on 35# steel for double-cylinder synchronous powder feeding melting deposition to realize surface modification. Background technique [0002] In addition to being used as a building material, 35# steel is widely used in the manufacture of various mechanical parts, but the problems of low strength and poor corrosion resistance are exposed during the use of the components, and the service life of the components is greatly shortened. Therefore, the surface needs to be modified to improve its wear resistance. Summary of the invention [0003] The purpose of the present invention is to provide a process method based on 35# steel for dual-cylinder simultaneous powder feeding (Ni50, Ni60 / 316) melting deposition to achieve surface modification, which can effectively improve the overall strength and corrosion resistance of the structure. [0004] The technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/106
Inventor 应俊龙巢昺轩郭楠叶祥林李智勇熊曦耀
Owner JIANGXI CHANGHE AVIATION IND
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