橋殼畢業(yè)設計31-wenkub
2023-07-02 16:08:58 本頁面
【正文】 eld, after having been introduced the profile of welding, new technology as well as the tendency of its development, this paper is focused on the analysis of highquality lowcarbon steel 16 Mn, the structure of welding, selection for welding methods as well as materials. the proper welding processing of axle shield and the autowielding schemes have been designed.After thorough analysis, the MAG welding processing which can be obtained better prehensive mechanical properties and lower costs for girth wielding has been selected for jointing the axle shield and the semiaxis sleeve girth. The unionmelt welding is also adopted as a processing for jointing the shield. Under the acquaintance of the highquality lowcarbon steel 16 Mn and its requirement for welding characteristics, series of parameters for MAG and unionmelt welding have been confirmed, such as the format of welding splice, veeangle, current, voltage and the speed of welding. Types of potential defects and their causes have also been studied. Thus measures for better welding processing to secure high qualities have been put forward.Key words：The real axle shield, welding, unionmelt welding, MAG welding目 錄中文摘要 ⅠABSTRACT Ⅱ1緒論 1 引言 2 汽車后橋殼產(chǎn)品焊接結(jié)構(gòu) 6 6 8 8 8 8 83汽車后橋殼材料的焊接性 9 9 16Mn冷裂紋 9 10 16Mn焊接性的改進 114焊接方法和焊接材料的選用 12 12 12（TIG焊） 13 14 MAG焊 15 16 17 17 19 19 20 205焊接工藝設計 21 21 22
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