Article(id=1309475092640391568, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20250347, 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=1790132790955, onlineDateStr=2026-09-23, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790132790955, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790132790955, creator=13701087609, updateTime=1790132790955, 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=14, endPage=21, ext={EN=ArticleExt(id=1309475092816552337, articleId=1309475092640391568, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Orthogonal Experiment Optimization of Resistance Projection Welding Process Parameters for Double-Layer Hot-Formed Steel, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Capacitor Discharge Welding (CDW) was utilized to perform projection welding between double-layer high-strength hot-formed steel and nuts. An orthogonal experimental design was adopted to systematically investigate the influence of various process parameters on the performance of the projection welding joints, with particular emphasis on nugget size and torque strength. Based on the experimental results, optimal welding parameters were identified through range analysis and comprehensive weighted scoring. The optimal conditions were determined as follows: electrode pressure of 0.3 MPa, welding time of 1.1 s, welding voltage of 320 V, and cooling time of 0.5 s. Under these parameters, the heat-affected zone (HAZ) on the nut side is subdivided into coarse-grain and fine-grain regions, with a microstructure primarily composed of equiaxed ferrite. On the hot-formed steel side, the HAZ consists of a fully quenched zone, a partially quenched zone, and a tempered zone. The fully quenched zone exhibits a coarse lamellar martensitic microstructure, whereas the partially quenched zone features a mixed microstructure comprising martensite, ferrite, and bainite. The tempered zone is predominantly constituted by tempered martensite. Three-dimensional fracture morphology analysis reveals that the fracture mode of the projection welding joint between the upper nut and the hot-formed steel is characterized by a ductile-brittle mixed fracture, while the fracture mode in the lower-layer hot-formed steel joints is primarily brittle in nature.

, authors=Haibo Lü, Xiaofeng Yu, Chunpeng Liu, Feng Jiang, authorsList=Haibo Lü, Xiaofeng Yu, Chunpeng Liu, Feng Jiang, 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=1309475093030461842, articleId=1309475092640391568, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=双层热成形钢凸焊工艺参数正交试验优化, columnId=1309475083433894201, journalTitle=汽车工艺与材料, columnName=整车连接技术专题, runingTitle=null, highlight=null, articleAbstract=

采用电储能凸焊将双层高强热成形钢与螺母进行凸焊连接。利用正交试验法研究不同工艺参数对热成形钢凸焊接头熔核尺寸与扭矩等性能的影响，根据试验结果进行极差分析与综合加权评分，得出最优凸焊工艺参数。结果表明，凸焊最优工艺参数为电极压力0.3 MPa，焊接时间1.1 s，焊接电压320 V，冷却时间0.5 s。此工艺条件下焊接接头螺母侧热影响区分为粗晶区和细晶区，组织以等轴铁素体为主；热成形钢侧热影响区主要为完全淬火区、不完全淬火区和回火区，其中完全淬火区的组织为粗大的板条马氏体，不完全淬火区为马氏体、铁素体和贝氏体混合组织，回火区组织主要为回火马氏体。通过对接头断口三维形貌分析得出，上侧螺母与热成形钢间凸焊接头断裂模式为韧脆混合断裂，下侧热成形钢间凸焊接头断裂模式以脆性断裂为主。

, authors=吕海波, 于晓丰, 刘春鹏, 姜峰, authorsList=吕海波, 于晓丰, 刘春鹏, 姜峰, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=wJh8t05Ua1CbbntCicH70A==, magXml=P42qj+74CJrtO7IijW/4cA==, pdfUrl=null, pdf=t4zX4cJSh9rGy+EqfN8Hfg==, pdfFileSize=10147743, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=E/47MYFWhSBAwdJVbgfF3A==, mapNumber=null, fund=null)}, authors=[Author(id=1309475093311480215, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1309475092640391568, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1309475093386977689, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1309475092640391568, authorId=1309475093311480215, language=EN, stringName=Haibo Lü, firstName=Haibo, middleName=null, lastName=Lü, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Mechanical and Electrical Engineering, Jilin University of Chemical Technology, Jilin 132022, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1309475093449892250, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1309475092640391568, authorId=1309475093311480215, language=CN, stringName=吕海波, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=吉林化工大学机电工程学院，吉林 132022, bio={"content":"

吕海波（1981—），男，硕士学位，高级工程师，研究方向为焊接工艺设计与合金制备。

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吕海波（1981—），男，硕士学位，高级工程师，研究方向为焊接工艺设计与合金制备。

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