单面焊双面成形质量差原因及措施.pdfVIP

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单面焊双面成形质量差原因及措施.pdf

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单面焊双面成形质量差原因及措施

论文题目：单面焊双面成形质量差的原因及防止措施专业班级：焊接1001 学生姓名：指导教师：马智锋完成日期： 2012.10.25 内蒙古交通职业技术学院毕业论文（设计）目录摘要·········································································································- 1- 前言·········································································································-2 - 第1章单面焊双面成型焊接的概念及实例·······················································-3- 1.1 概念···································································································-3- 1.2 实例···································································································-3- 第2 章单面焊双面成型焊接的缺陷及危害·······················································-7- 2.1 焊接缺陷·····························································································-7- 2.2 焊接危害·····························································································-7- 第3章单面焊双面成形焊接质量差的原因分析·················································- 8- 3.1 焊接电源自身因素引起的焊接质量差························································- 8- 3.2 工艺因素对焊接质量的影响····································································- 8- 3.3操作因素对焊接质量的影响·····································································-9- 第4 章防止单面焊双面成型焊接质量差的措施················································- 10- 4.1焊前准备····························································································- 10- 4.2 焊接操作····························································································- 10- 结论········································································································- 12 - 致谢········································································································- 13-