On-line prediction method and device for welding seam wear amount of laser forging composite arc welding

An arc welding and prediction method technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of inability to precisely control the amount of wear, inability to guarantee the wear resistance of parts welds, and predict the amount of weld wear, etc. The effect of eliminating internal defects, reducing weld forming defects, and reducing welding costs

Active Publication Date: 2022-07-05
GUANGDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing welding technology does not predict the amount of wear of the weld, cannot accurately control the amount of wear, and cannot provide protection for the wear resistance of the weld of the parts

Method used

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  • On-line prediction method and device for welding seam wear amount of laser forging composite arc welding
  • On-line prediction method and device for welding seam wear amount of laser forging composite arc welding
  • On-line prediction method and device for welding seam wear amount of laser forging composite arc welding

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Experimental program
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Effect test

Embodiment 1

[0050] The on-line prediction method of the laser forging composite arc welding seam wear amount in this embodiment is applied to the laser forging composite arc welding of the metal plane welding seam, refer to the appendix figure 1 , the method includes the following steps:

[0051] Step S100: Scan the welding area of ​​the plane metal parts to be tailored by an optical dynamic measurement system and upload the computer to analyze the shape and size of the plane welding area, and obtain the arc welding path and the laser shock forging path through computer planning;

[0052] Step S200: setting arc welding process parameters and laser shock forging process parameters of the next layer of welds;

[0053] Step S300: start the arc welding device, start wire feeding according to the set arc welding path and process parameters, and the arc heat melts the welding wire in the welding area to form the first layer of welds or the i+1th layer of welds;

[0054]Step S400: While forming...

Embodiment 2

[0084] An online prediction device for laser forging composite arc welding seam wear amount using the online prediction method of laser forging composite arc welding seam wear amount, refer to appendix figure 2 and 3 , including a computer 1, a display screen 2, a workbench 23 and an infrared thermal imager 6 above the workbench 23, an arc welding device 3, a laser impact forging device 5, and an optical dynamic measurement system;

[0085] The worktable 23 is used to place the parts to be welded;

[0086] The infrared thermal imager 6 is used to monitor the temperature of the welding seam 24 in real time;

[0087] The arc welding device 3 is used to control the movement of the arc welding gun and melt the welding wire 25 to form a weld on the part, and the angle between the center line of the arc welding gun nozzle and the worktable 23 is 35° to 50°;

[0088] The laser impact forging device 5 performs laser impact forging on the weld 24 through the forging laser beam 28, a...

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Abstract

The invention discloses a method and a device for online prediction of the wear amount of a laser forging compound arc welding seam. The method comprises the following steps: determining an arc welding path and a laser impact forging path; setting arc welding process parameters and laser impact forging of the next layer of welding seam Set the process parameters; start wire feeding according to the set arc welding path and process parameters, and the arc heat will melt the welding wire in the welding area to form a layer of welding seam; according to the set laser shock forging path and process parameters, this layer of welding seam is carried out. Simultaneous laser shock forging; flaw detection of the layer of weld after laser shock forging to determine whether the layer of weld has internal defects; calculate and obtain the expected weld wear of the formed weld. Multi-layer arc cladding is carried out according to the preset wear amount of the weld, and layer-by-layer synchronous laser impact forging is performed to predict the wear amount while ensuring the machining accuracy and strength of the weld, and to achieve precise control of the expected wear amount of the weld. , to provide the guarantee of wear resistance for the welding seam of the parts.

Description

technical field [0001] The invention relates to the field of laser forging, in particular to a method and a device for online prediction of the wear amount of laser forging compound arc welding metal plane welds. Background technique [0002] As a common technology in the field of equipment manufacturing, welding technology has broad application prospects in high-end manufacturing fields such as aerospace, rail transit equipment manufacturing, and molds. With the increase in the volume of equipment parts in these fields, the complexity of the structure and the continuous improvement of service requirements, it has become a task to improve the efficiency of welding and manufacturing parts, reduce welding energy consumption, reduce welding pollution, and achieve high-performance welding and manufacturing of key equipment parts. Important direction and urgent demand for the development of welding manufacturing. [0003] In the existing arc welding technology, due to the change...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K9/133B23K9/16C21D1/09
CPCB23P15/00B23K9/16B23K9/133C21D1/09Y02P90/30
Inventor 林超辉张永康吴合槟余龙溦
Owner GUANGDONG UNIV OF TECH
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