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A detection method for penetration depth and fusion width of welding surface of thin-walled materials

A detection method and welding surface technology, which is applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of not being able to truly and accurately reflect the welding quality of the weld seam of materials, and achieve the effect of simple and efficient operation

Active Publication Date: 2020-12-08
陕西庆华汽车安全系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the visual inspection is limited to the manual identification of the weld surface, the tensile strength test cannot truly and accurately reflect the welding quality of the material weld due to the wear and tear of the tooling, the thin-walled material and the position of the tooling

Method used

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  • A detection method for penetration depth and fusion width of welding surface of thin-walled materials

Examples

Experimental program
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Effect test

Embodiment 1

[0053]This embodiment provides a method for detecting the penetration depth and penetration width of the welding surface of a thin-walled material. The thin-walled material is a tube shell of an igniter for an airbag and a seatbelt gas generator. The igniter for the igniter is installed in the closed explosive device and detonated under the condition of 1.2A constant current DC. The residual shell of the igniter is selected, and the specific implementation is as follows:

[0054]Step 1. Cut the remaining tube shell to be tested, and clean the cut surface after cutting to obtain the tube shell fragment

[0055]Step 1.1. Put the residual shell of the tube to be tested into the cutting machine mold, load 5 pieces at a time, switch the cutting machine operation and water adding mode to automatic, and run the cutting machine;

[0056]Step 1.2. After cutting by the cutting machine, the primary tube shell fragment is obtained, and the primary tube shell fragment is taken out with tweezers;

[0057]Ste...

Embodiment 2

[0075]This embodiment provides a method for detecting the penetration depth and penetration width of the welding surface of a thin-walled material. The thin-walled material is a tube shell of an igniter for an airbag and a seatbelt gas generator. The igniter for the igniter is installed in the closed explosive device, and it is detonated under the condition of 1.19A constant current DC. The residual shell of the igniter is selected, and the specific implementation is as follows:

[0076]Step 1. Cut the remaining tube shell to be tested, and clean the cut surface after cutting to obtain the tube shell fragment

[0077]Step 1.1. Put the residual shell of the tube to be tested into the cutting machine mold, one piece at a time, switch the cutting machine operation and water adding mode to automatic, and run the cutting machine;

[0078]Step 1.2. After cutting by the cutting machine, the primary tube shell fragment is obtained, and the primary tube shell fragment is taken out with tweezers;

[0079...

Embodiment 3

[0096]This embodiment provides a method for detecting the penetration depth and penetration width of the welding surface of a thin-walled material. The thin-walled material is a tube shell of an airbag and a seatbelt gas generator igniter, which generates gas from the airbag and the seatbelt. The igniter for the igniter is installed in the closed explosive device, and it is detonated under the condition of 1.21A constant current DC. The residual shell of the igniter is selected, and the specific implementation is as follows:

[0097]Step 1. Cut the remaining tube shell to be tested, and clean the cut surface after cutting to obtain the tube shell fragment

[0098]Step 1.1. Put the residual shell of the tube to be tested into the cutting machine mold, 4 pieces at a time, switch the cutting machine operation and water adding mode to automatic, and run the cutting machine;

[0099]Step 1.2. After cutting by the cutting machine, the primary tube shell fragment is obtained, and the primary tube s...

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Abstract

The invention discloses a fusion depth and fusion width detection method for a thin-wall material welding face. The fusion depth and fusion width detection method is conducted specifically according to the following steps that 1, to-be-detected thin-wall material is cut, the cut face is cleaned after cutting, and thin-wall material fragments are obtained; 2, the thin-wall material fragments are inlaid, and an inlaid sample piece is obtained; 3, the inlaid sample piece is polished and ground, and an accurately ground sample piece is obtained; 4, etchant solution is prepared, metallographic etching is conducted on the accurately ground sample piece, and an etched sample piece is obtained; and 5, the etched sample piece is detected by a fusion depth detector, and fusion width and fusion depthdata of the etched sample piece are obtained. The fusion depth and fusion width detection method is simple and efficient to operate, accurate, reliable and suitable for detection of automatic mass production. Weld joint quality can be reflected visually, accurately and reliably, and through weld joint fusion depth detection and quantitative analysis, welding energy, focal length, rotation speed,bursting tests and other abnormal causes appearing in the welding process can be analyzed conveniently, quantitatively and qualitatively.

Description

Technical field[0001]The invention belongs to the technical field of welding material detection, and relates to a method for detecting penetration depth and penetration width of a thin-walled material welding surface.Background technique[0002]With the development of industrial technology, high-efficiency, agile and environmentally friendly processing technology will be favored. Laser welding, with its high-energy beam focusing method, can realize deep penetration welding, rapid welding and "seamless" welding of various materials during the welding process. The laser welding equipment is flexible and the real-time online inspection technology is mature, and it can be produced in large quantities. To achieve a high degree of automation. Because of the above advantages, laser welding has been widely used in automobile, steel, shipbuilding, aviation, weapons, light industry and other industries. The control and inspection methods of welding, especially the welding quality of thin-wall m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/00G01B21/02G01B21/18
CPCB23K37/00G01B21/02G01B21/18
Inventor 宫万斌熊涛曹吉伟王立石张康熙党迎鸽徐磊赵文虎孙勇王世林刘希
Owner 陕西庆华汽车安全系统有限公司
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