Study on Welding Parameter Model of Resistance Spot Welding of Body-in-white Steel Plate

Lijun HAN; Gang WANG; Xuesong WU

doi:10.7512/j.issn.1001-2303.2022.04.05

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Study on Welding Parameter Model of Resistance Spot Welding of Body-in-white Steel Plate
Vol. 52, Issue 4, Pages: 29-35(2022)
DOI： 10.7512/j.issn.1001-2303.2022.04.05

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韩立军，王刚，吴雪松.汽车车身钢板电阻点焊焊接参数模型研究［J］.电焊机，2022，52（4）：29-35.

HAN Lijun, WANG Gang, WU Xuesong.Study on Welding Parameter Model of Resistance Spot Welding of Body-in-white Steel Plate[J].Electric Welding Machine, 2022, 52(4): 29-35.
韩立军，王刚，吴雪松.汽车车身钢板电阻点焊焊接参数模型研究［J］.电焊机，2022，52（4）：29-35. DOI： 10.7512/j.issn.1001-2303.2022.04.05.

HAN Lijun, WANG Gang, WU Xuesong.Study on Welding Parameter Model of Resistance Spot Welding of Body-in-white Steel Plate[J].Electric Welding Machine, 2022, 52(4): 29-35. DOI： 10.7512/j.issn.1001-2303.2022.04.05.

摘要

汽车车身板材电阻点焊焊接参数目前缺乏有效的数学模型可借鉴，只能基于经验，并通过大量的试验获得一些零散的、非系统性的经验数据来最终确认，需要消耗大量人力、物力和时间。本文以汽车车身钢板电阻点焊为研究对象，通过构建焊点合理的物理和数学模型，利用材料的物理属性，对影响点焊质量的关键焊接参数进行深入研究。在等效板厚概念的基础上，通过大量的试验和生产实践，构建了焊接电流、焊接压力、焊接时间以及电极帽寿命等参数的数学模型。模型的建立为汽车车身钢板板材点焊工艺设计提供了系统而科学的解决方案，具有较高的理论和实际应用价值。

Abstract

At present, there is no effective mathematical model for the welding parameters of automobile sheet resistance spot welding, which can only be confirmed through experience and many tests. Moreover, it requires more work force and material resources, and wastes more time. In this paper, the resistance spot welding of body-in-white steel plate is taken as the research object, and the key welding parameters that affect the spot welding quality are deeply studied. Based on the concept of equivalent plate thickness, the mathematical models of welding current, welding pressure, welding time and electrode cap life were established through a lot of test verification and production practice. The establishment of the model provides a systematic and scientific solution for body-in-white steel plate welding, which has high theoretical and practical application value and provides a fast and reliable solution for the process design of body-in-white welding.

关键词

白车身钢板电阻点焊焊接参数模型

Keywords

body-in-whitesteel plateresistance spot weldingwelding parametersmodel

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