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Nut projection welding process suitable for high-yield-strength plate

A welding process and high-yield technology, applied in the field of nut projection welding, can solve the problems of insufficient welding strength, virtual welding, and time-consuming arc welding process, and achieve the effects of improving welding quality and efficiency, reducing production costs, and improving welding strength.

Inactive Publication Date: 2020-09-18
KUNSHAN RONGSHIJIE AUTOMATIC WELDING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the current welding of nuts on high-yield-strength plates due to the fact that the welding strength is not enough, the effective penetration cannot be formed, and the phenomenon of virtual welding is very easy to occur due to projection welding, arc welding is generally used, so there is a time-consuming arc welding process. Disadvantages such as high material cost, high production cost, etc. have brought a certain impact on people's use process. Therefore, we propose a nut projection welding process suitable for high yield strength plates.

Method used

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  • Nut projection welding process suitable for high-yield-strength plate
  • Nut projection welding process suitable for high-yield-strength plate
  • Nut projection welding process suitable for high-yield-strength plate

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A nut projection welding process suitable for high yield strength plates, the specific steps are as follows:

[0027] Step 1: Prepare and load materials: Prepare the high yield strength plate to be welded, the nut to be welded and the welding tool, the model of the nut to be welded is M6, place the high yield strength plate to be welded on the welding tool, put For nuts to be welded, when preparing materials, reduce the cross-section of the lower electrode so that the extension of the cross-section becomes a quadrilateral circumscribed circle formed by the four welding legs of the nut, and at the same time elongate the length of the lower electrode so that the welding area of ​​the plate is as small as possible. energy, and the heat is not easy to dissipate. The feeding process is to place the upper electrode, the nut and the lower electrode sequentially from top to bottom;

[0028] Step 2: Check the welding parameters: input the preset parameters during the welding pro...

Embodiment 2

[0034] A nut projection welding process suitable for high yield strength plates, the specific steps are as follows:

[0035] Step 1: Prepare and load materials: Prepare the high-yield strength plate to be welded, the nut to be welded and the welding tool, the model of the nut to be welded is M8, place the high yield strength plate to be welded on the welding tool, put For nuts to be welded, when preparing materials, reduce the cross-section of the lower electrode so that the extension of the cross-section becomes a quadrilateral circumscribed circle formed by the four welding legs of the nut, and at the same time elongate the length of the lower electrode so that the welding area of ​​the plate is as small as possible. energy, and the heat is not easy to dissipate. The feeding process is to place the upper electrode, the nut and the lower electrode sequentially from top to bottom;

[0036] Step 2: Check the welding parameters: input the preset parameters during the welding pro...

Embodiment 3

[0042] A nut projection welding process suitable for high yield strength plates, the specific steps are as follows:

[0043] Step 1: Prepare and load materials: Prepare the high yield strength plate to be welded, the nut to be welded and the welding tool, the model of the nut to be welded is M10, place the high yield strength plate to be welded on the welding tool, put For nuts to be welded, when preparing materials, reduce the cross-section of the lower electrode so that the extension of the cross-section becomes a quadrilateral circumscribed circle formed by the four welding legs of the nut, and at the same time elongate the length of the lower electrode so that the welding area of ​​the plate is as small as possible. energy, and the heat is not easy to dissipate. The feeding process is to place the upper electrode, the nut and the lower electrode sequentially from top to bottom;

[0044]Step 2: Check the welding parameters: input the preset parameters during the welding pro...

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Abstract

The invention discloses a nut projection welding process suitable for a high-yield-strength plate. The process comprises the following specific steps of step one, preparing and feeding materials: preparing a high-yield-strength plate to be welded, a nut to be welded and a welding tool, wherein the model of the nut to be welded is M6, M8 or M10, placing the high-yield-strength plate to be welded onthe welding tool, and placing the nut to be welded. The nut projection welding process suitable for the high-yield-strength plate comprises parameters of current, pressure and welding duration, and the parameters can be subjected to real-time strain adjustment in the projection welding process, so that the effects of improving the welding strength, stabilizing the depth of fusion and the like when nut projection welding is carried out on the high-yield-strength plate are realized, and the effects of reducing the production cost and improving the welding quality and efficiency are achieved. Meanwhile, related sealing tests prove that the process can ensure the air tightness of the welded nut and can meet the use requirements of the welded finished product under certain severe or special situations.

Description

technical field [0001] The invention relates to the field of nut projection welding of high yield strength plates, in particular to a nut projection welding process suitable for high yield strength plates. Background technique [0002] In automobile production, products such as car shell covers, oil pans, air storage tanks, gasoline tanks, etc. have pressure-resistant or sealing nuts that need to be welded. The original process uses arc welding, which has low productivity, is prone to welding defects, cannot guarantee sealing and deformation, and has high labor intensity. The use of nut annular projection welding process overcomes the above shortcomings. [0003] In view of the current welding of nuts on high-yield-strength plates due to the fact that the welding strength is not enough, the effective penetration cannot be formed, and the phenomenon of virtual welding is very easy to occur due to projection welding, arc welding is generally used, so there is a time-consuming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/14
CPCB23K11/14
Inventor 秦儒明
Owner KUNSHAN RONGSHIJIE AUTOMATIC WELDING EQUIP
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