[高速冲压加工数控系统和二维排样优化的研究]董长双

【高速冲压加工数控系统和二维排样优化的研究】董长双.pdf

Mechanical Engineering Prof.Bin Hongzan Co-Supervisor:AssociateProf.Yang Chumin ADissertationSubmittedto AcademicDegreesEvaluationCommitteeof HuazhongUniversityofScienceandTechnology FortheDegreeof DoctorofPhilosophyinEngineering ResearchonCNCSystemforHighFeedrate PunchingProcessand Two-Dimensional华中理工大学博士学位论文 ABSTRACT Being animportantcategory ofmetalmachining,metal sheetpunching hasits finished partswidely appliedinmany industries.Considering the ordinaryproblemsin the fieldof punching process in China,such as low productivity,less CNCpunching machine,low levelautomationandlowbenefitoftheen(I-III)(1-8)(2-5)(2-4)(4-5)(5-6)(6-7)(7-8)(9-40)(9-10)(10-16)(10-12)(12-13)(13-16)(16-17)(17-19)(17-18)(18-19)(19-25)(20-21)(21-22)(22-24)(24-25)(26-28)(26-27) 华中理工大学博士学位论文 录目 2用户程序正确性判断、循环及循环嵌套的处理方法 1.