Article(id=1309475083672977922, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20250342, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790132788818, onlineDateStr=2026-09-23, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790132788818, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790132788818, creator=13701087609, updateTime=1790132788818, updator=13701087609, issue=Issue{id=1309475082548896055, tenantId=1146029695717560320, journalId=1189873562199433220, year='2026', volume='', issue='8', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='1787155200000', pubDateStr='2026-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1790132788550, creator='13701087609', updateTime=1790132870635, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309475426930614510, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309475426930614511, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=44, endPage=57, ext={EN=ArticleExt(id=1309475083819778563, articleId=1309475083672977922, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Study on Crack Propagation Behavior and Process Optimization in Die-Cast Aluminum Alloy Self-Piercing Riveted Joints, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To address the cracking problem during Self-Piercing riveting (SPR) on AlSi10MnMg die-cast aluminum shock towers, a combined experimental and numerical approach is employed to investigate crack initiation and propagation behavior. Optimization is conducted from 3 perspectives: the riveting process, material composition, and die-casting process. The results indicate that riveting cracking is induced by the tensile stress in the lower sheet and the compressive stress in the adjacent region, while the low elongation and porosity defects of the cast aluminum make it prone to crack initiation. A contoured riveting die reduces plastic deformation and tensile stress; Sr modification treatment optimizes the eutectic Si morphology and increases elongation; and optimizing the runner, overflow, and die temperature reduces casting defects, thereby lowering the cracking risk.

, authors=Zhiqiang Sun, Jingyuan Qi, Xupeng Li, Zhuoyi Li, Xiang Wang, Yichang Chen, authorsList=Zhiqiang Sun, Jingyuan Qi, Xupeng Li, Zhuoyi Li, Xiang Wang, Yichang Chen, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309475084088214020, articleId=1309475083672977922, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=压铸铝合金自冲铆接接头裂纹扩展行为及工艺优化研究, columnId=1309475083433894201, journalTitle=汽车工艺与材料, columnName=整车连接技术专题, runingTitle=null, highlight=null, articleAbstract=

为解决AlSi10MnMg铸铝轮罩自冲铆接（SPR）过程中的开裂问题，采用试验与仿真相结合的方法，研究裂纹产生与扩展行为，并从铆接工艺、材料成分、压铸工艺3个方面进行优化。结果表明：铆接开裂由下层板材拉伸应力与邻近区域挤压应力引发，铸铝材料低伸长率及气孔缺陷易诱导裂纹；异型铆模可减少塑性变形与拉伸应力，Sr变质处理可优化共晶Si形态、提高伸长率，优化流道、渣包及模具温度可减少铸件缺陷，降低开裂风险。

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孙志强（1985—），男，工程师，学士学位，研究方向为汽车新材料连接工艺。

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孙志强（1985—），男，工程师，学士学位，研究方向为汽车新材料连接工艺。

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