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Pressure welding process for lowering welding spatter

A pressure welding and process technology, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., to achieve the effect of eliminating ineffective labor, eliminating welding spatter, and improving welding quality

Active Publication Date: 2015-05-27
WUHAN JIEZHONG AUTO PARTS CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It is difficult to control the formation of the nugget without spatter in the traditional process, and reducing or eliminating spatter has become a difficult problem in the automotive process

Method used

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  • Pressure welding process for lowering welding spatter
  • Pressure welding process for lowering welding spatter

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Embodiment Construction

[0013] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0014] see Figure 1 to Figure 2 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides a pressure welding process for lowering welding spatter. The pressure welding process comprises spot welding and convex welding, wherein the spot welding or convex welding parameters set millisecond as a unit; when pressure welding adopts spot welding, the welding time for each pulse is 6 ms-20 ms, the cooling time is 3 ms-20 ms, and the pulse quantity is 10n-40n; when the pressure welding adopts convex welding, the welding time for each pulse is 6 ms-20ms, the cooling time is 3 ms-20ms, and the pulse quantity is 4n-10n. The pressure welding process is full in welding nugget, increased in welding spot strength, and eliminates welding spatter. A follow-up polishing process is not needed, the welding quality is improved, the surface appearance of the welding part is improved, and ineffective labor is eliminated. The pressure welding process is especially suitable for a high-strength plate or a thermally-formed high-strength steel plate, relatively good in using effect and wide in scope of application.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a pressure welding process capable of greatly reducing or eliminating welding spatter and improving the strength of welding spots. Background technique [0002] Pressure welding is the main manufacturing process in automobile manufacturing. Pressure welding is a typical solid-phase welding method. During solid-phase welding, pressure must be used to make the surface of the part to be welded directly and closely contact in a solid state, and to increase the temperature of the part to be welded , By adjusting the temperature, pressure and time, the surface to be welded can be sufficiently diffused to realize interatomic bonding. [0003] Resistance welding in pressure welding generally uses spot welding and projection welding. There are more than 4,000 spot welds and hundreds of projection welds in the body-in-white. Because the current welding process cannot solve the prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/02
Inventor 禇卫东王大明陈仕超
Owner WUHAN JIEZHONG AUTO PARTS CO LTD
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