[多通管挤压胀形工艺及其弹塑性动力显式有限元模拟的研究]杨雨春

【多通管挤压胀形工艺及其弹塑性动力显式有限元模拟的研究】杨雨春.pdfMaterialProcessEngineering SeniorEngineer GuoanHU YuchunYANG Prof.JuchenXIA ADissertationSubmittedto AcademicDegreesEvaluation Committeeof Huazhong University ofScience andTechnology for theDegree of Doctor of Philosophyin Engineering Research on theTechnology of Extruding and BulgingMulti-wayTube a华中理工大学博士学位论文 Abstract At thepresentday,thetube hydroforminghasbeen usedvery widelytoreplaceseveral stamping,casting and welding parts in America,Germany,Japan and Russia.By this new method,much material and energy have been saved.At the same time,the quality and productivityhavebeenimproved.IV(1.9)(3.5)(5.6)(6.8)(8.9)(9.9)(10.26)(10.10)(10.14)(11.11)(11.13)(13.14)(14.15)(15.16)(16.18)(18.19)(20.21)(21.23)(23.26)(24.24)(25.26)(26.26)(27.37)(27.27) 华中理工大学博士学位论文 录目 1空心零件塑性成形的概况 1课题的来源及研究意义 1多通管成形技术的研究现状 1多通管挤压胀形的分析方法 1.
———— 文字由OCR识别(未校验)，可能存在错字；请以原始完整版为准。