汽车油箱生产的设计与焊接加工优化（本科毕业论文设计）.doc

摘 要

本课题针对目前汽车油箱生产布局不合理,生产效率低,产品一次合格率不高的问题,在充分了解和掌握汽车油箱制造技术要求的基础上,调查收集目前国内外汽车油箱生产制造企业的现状,分析研究生产效率低,产品一次合格率不高的原因,提出解决办法,特别是焊接方法、填充金属、焊接工艺等因素对焊接加工的影响规律，从而优化出较好的焊接加工过程。
通过对油箱材料、所用焊接方法、所需焊接材料和焊接工序对油箱的焊接进行分析，以及根据油箱的实际工作条件，最终选定焊接方法分别为电阻焊、火焰钎焊和CO2电弧焊。
在汽车油箱材料确定的情况下，根据实际条件，做出的油箱焊接优化，使得汽车油箱生产布局比较合理、生产效率得到一定的提高、产品一次合格率也得到提高，其密封性、强韧性都得到提高。


关键词：油箱，电阻焊，CO2焊，火焰钎焊


















ABSTRACT

The topic for the current unreasonable layout of the vehicle's fuel tank production, low production efficiency, product qualification rate is not high time the issue in the full understanding and knowledge requirements of the vehicle's fuel tank manufacturing technology on the basis of investigations at home and abroad to collect the vehicle's fuel tank manufacturing enterprises the status quo , The analysis of low production efficiency, product is not a passing rate of the reasons for the high, propose solutions, in particular the welding method, filled with metal, welding technology and other factors on the effects of welding process, the better to optimize the welding process.
Through the fuel tank material, used welding method for welding materials and welding process of welding the tank for analysis, and the fuel tank under the actual conditions of work, welding method ultimately selected for resistance welding, flame brazing and CO2 arc welding.
The vehicle's fuel tank materials determine the circumstances, in accordance with actual conditions, to optimize the fuel tank welding, making the vehicle's fuel tank production layout more rational, efficient production must be increased, the product has also been a passing rate of increase, the tightness, strength and toughness are is improved.


Key words: Fuel tank, resistance welding, CO2 welding, flame brazing












目 录

中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 背景 1
1.2 所用材料 3
1.3 研究的内容及意义…………………. 5
2 ZL90燃油箱的产品分析 6
2.1各零件阐述 6
2.1.1 件1出油管 6
2.1.2 件2油箱下体 6
2.1.3 件3隔板 7
2.1.4 件4箱口圈 8
2.1.5 件5油箱上体 8
2.1.6 件6螺钉 8
2.2 ZL90燃油箱的焊接件组合分析……………….…………………………..8
3 ZL90燃油箱上体组合件的焊接………………..……………….…...10
3.1 A3钢08AL的焊接特点……..…………………………………….....……10
3.2 焊接方法的选择……………………………….…………………...….10
3.2.1 激光焊……………………….…………………………………10
3.2.2 电阻点焊…………………………….………………………….11
3.2.3 CO2气体保护焊……………………………….…………….…….11
3.3 焊接材料的选择……………………………………………..….…..…13
3.3.1 焊丝……………………………….…………….…….……….13
3.3.2 保护气体………………………………………………………..13
4 ZL90燃油箱下体组合件的焊接………………..……….…………...15
4.1母材的焊接性分析………………………………………….………..…15
4.1.1 H62的焊接特点………………………………………………...…15
4.1.2 08AL钢的焊接特点……………….……………………………..…15
4.1.3 08AL钢与H62黄铜的焊接特点……………………………………..…15
4.2焊接方法选择………………………………………………………..…15
4.2.1 TIG焊……………………………………….………………..…15
4.2.2 钎焊…………………………...……………………………..…16
4.3焊接材料的选择…………………………………………………………17
4.3.1 焊接材料选用原则……………………….…………….………..…17
4.3.2 焊丝…………………………………………………………..…19
4.3.3 焊剂…………………………………………………………..…19
5 油箱譆@珊附印?.…....21
5.1 缝焊介绍…………………………………………….………………21
5.2 缝焊过程…………………………………………………….………21
5.3 焊接加工方法及工艺的确定………………………………………..……21
6 结论 …….………………………………………………………………23
致谢……………………………………………………………………….24
参考文献 ………………………………………………………………….25