全文总字数：13327字

1. 研究目的与意义（文献综述）

research purpose

with the developmentand progress of science and technology, we need to have a more clear andintuitive understanding to new energy automobile body dissimilar metal welding,enrich the research of its existing .because the current single metal or alloyis difficult to meet the requirements on the properties of materials in a broadrange of areas. so the welding of dissimilar metal must occupy an importantposition in the manufacturing industry. and our car industry as the backbone ofthe manufacturing industry. obviously dissimilar metal welding has a broadapplication prospect in the automotive industry. but the traditional way ofwelding is difficult to achieve good welding of dissimilar metals .therefore,we are bound to optimize the connection of automobile body through the weldingwhich means we need to deepen the research on the foreign metal welding ofautomobile body. therefore, the purpose of this topic is to analyze the impactof foreign metal impact welding of automobile body and explore the influence ofits technological parameters on the welding.

researchsignificance

2. 研究的基本内容与方案

research contents:

1.establishment of cae model for impact connection of dissimilar metals.

2. simulate and analyze the impactof impact connection process parameters on interface features.

3. 研究计划与安排

1 (the 20th week ofthe 7th semester)determine the topic of graduation design and thecollection of school materials

2 (the first weekof the 8th semester) plan conception, literature search, and completion of theopening report

3-4 (the 2nd to 3rdweek of the 8th semester) foreign language translation and data collection

4. 参考文献（12篇以上）

1. wang jianmin,zhu xi, liu runquan ,application and development of explosive welding[j].materialguide . 2006, issue 1.

2. wang yuxin, li xiaojie, wang xiaohong, yan honghao. explosive welding technology andengineering application[j].aviation manufacturing technology, 2019, no.12.

3. zheng yuanmao ,explosivewelding and welding of foreign metals[j]. welding technology, 2001, no.5.