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Hybrid Additive Manufacturing of forming tools

Automotive Innovation 2023年第3期6卷 311-323页

作者： Hamed Dardaei Joghan Ramona Holker‑Jager Anna Komodromos A.Erman Tekkaya Institute of forming Technology and Lightweight Components(IUL) TU Dortmund UniversityBaroper Stra.e 30344227 DortmundGermany

Additive manufacturing(AM)is widely used in the automotive industry and has been expanded to include aerospace,marine,and *** flexibility and the possibility of manufacturing complex parts in AM motivate the integration of additive manu-facturing with classical forming technologies,which can improve tooling concepts and reduce *** study presents three applications of this ***,the possibility of successful utilization of selective laser melting for manufacturing extrusion tools with complex cooling channels and paths for thermocouples is reported,leading to significantly reduced inner die temperatures during the extrusion ***,sheet lamination is integrated with laser metal deposition(LMD)to manufacture deep-drawing *** results are achieved in reducing the stair step effect,which is the main challenge in sheet lamination,by LMD and following post-processing such as milling,ball burnishing,and laser *** new manufacturing route shows that LMD can economically and efficiently reduce the stair step effect and omit the hardening step from the conventional manufacturing process ***,LMD is used to manufacture a hot stamping punch with improved surface roughness by ball burnishing and near-surface complex cooling *** experimental results show that the manufactured punch has lower temperatures during hot stamping compared with the conventionally manufactured *** study shows the successful integration of AM processes with classical forming processes.

关键词： Additive manufacturing Laser metal deposition Selective laser melting Rapid tooling forming tool Layer laminated manufacturing

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