Article(id=1309475253554864180, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475253038964788, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20250248, 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=1790132829321, onlineDateStr=2026-09-23, pubDate=1771516800000, pubDateStr=2026-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790132829321, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790132829321, creator=13701087609, updateTime=1790132829321, updator=13701087609, issue=Issue{id=1309475253038964788, tenantId=1146029695717560320, journalId=1189873562199433220, year='2026', volume='', issue='2', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='1771516800000', pubDateStr='2026-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1790132829198, creator='13701087609', updateTime=1790133031676, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309476102360367135, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475253038964788, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309476102360367136, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475253038964788, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=31, endPage=38, ext={EN=ArticleExt(id=1309475253840076853, articleId=1309475253554864180, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Research on the Development and Application of Shear Edge Rolling Strengthening Process for 700 MPa Grade Beam Plates, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In response to the problem of insufficient fatigue strength of the shear edge of the 700 MPa level frame longitudinal beam, optical microscopy, scanning electron microscopy and fatigue testing machine are used to evaluate the properties of the shear edge under existing process conditions in this paper. The research results indicate that the burrs on the shear edge of the 700 MPa level frame longitudinal beam are effectively removed by rolling deburring process. However, due to the folding caused by burr lodging, the fatigue strength of the shear edge is only 206 MPa, and the fatigue failure originates from the folding root at the rolling edge of the tear band side. To improve the fatigue strength of the shear edge in further, the parameters of the shear edge rolling process are analyzed and optimized combined with CAE analysis. The results show that in order to form a large residual compressive stress on the shear edge, the optimal angle between the roller working surface and the hot-rolled plate surface is 30°~45°, with a rolling depth of 0.5~1.0 mm. The chamfered surface formed by rolling the upper and lower edges of the shear edge is smooth and flat by using optimized rolling process. The hot-rolled surface of the original plate has no obvious protrusions, and there is no outward protrusion in the middle of the cross-sectional profile of the shear edge. Finally, the fatigue strength of the shear edge reaches 263~270 MPa.

, authors=Yuanbao Zheng, Liangqing Gao, Wei Zhan, Shaobing Li, Keju Ouyang, Liangbo Yang, authorsList=Yuanbao Zheng, Liangqing Gao, Wei Zhan, Shaobing Li, Keju Ouyang, Liangbo Yang, 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=1309475254150455351, articleId=1309475253554864180, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=700 MPa级大梁板剪切边滚压强化工艺开发及应用研究, columnId=1309475253923962934, journalTitle=汽车工艺与材料, columnName=中国汽车工程学会汽车材料分会第24届学术年会优秀论文——材料工艺研究, runingTitle=null, highlight=null, articleAbstract=

为解决700 MPa级钢板车架纵梁剪切边疲劳强度不足的问题，采用光学显微镜、扫描电镜和疲劳试验机对现有工艺条件下的剪切边进行性能评价。结果表明，700 MPa级车架纵梁剪切边经滚压去毛刺工艺后，剪切边毛刺有效去除，但由于毛刺倒伏产生折叠，导致剪切边的疲劳强度σ_-1仅为206 MPa，疲劳失效起源于撕裂带侧滚压棱边处的折叠根部。为进一步提高剪切边的疲劳强度，结合CAE分析，对剪切边滚压工艺参数进行优化，结果表明，为在剪切边形成较大的残余压应力，滚轮工作面与热轧板表面的最佳角度为30°~45°，滚压深度为0.5~1.0 mm。优化后剪切边的上、下棱边滚压形成的倒角面平整光滑，原板材热轧表面无明显凸起，剪切边横截面轮廓中部未出现外凸，剪切边的疲劳强度σ_-1达到263~270 MPa。

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郑远宝（1990—），男，工程师，硕士学位，研究方向为汽车用金属板材开发与应用。

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郑远宝（1990—），男，工程师，硕士学位，研究方向为汽车用金属板材开发与应用。

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