机械工程师面试笔试题集锦

一、填空题：(1.5x20＝30分)12、常用的焊接方式有___________________等。(至少回答3种)7,computernumericalcontrol第五题是,AUTOCAD的弧度,正负号..FAI,等怎么输入?(%%D,%%P,,%%C)mandatorycourseandoptionalcourse1,Brieflydescribewhatisblanking(cutting),forming,coiningandembossingstampingprocess.2,Whatismetalclading?3,Whatisthepurposeofaddingglassfibertothermoplasticmaterial?4,Incontrastwithmetalandthermoplasticmaterial,whichhasahighercoefficientofthermalexpansion(CTE).5,Themostsuitablematerialforaintegralhingedesign(typicalplasticthickness=0.25to0.5mmathinge)6,Canabendingloadmakesbothcompressiveandtensilestressinamember?7,Whatisthedesigncriteriausedinplasticscatch/snap?9,Whyisnaturalfrequencyimportantinvibrationanalysis?10,Whatisthedeflectionequationofacantileverbeamfixedatoneedge?1.Brieflydescribewhatisblanking(cutting),forming,coiningandembossinginstampingprocess.2.Whatismetalclading?3.Whatisthepurposeofaddingglassfibertothermoplasticmaterial?4.Incontrastwithmetalandthermoplasticmaterial,whichhasahighercoefficientofthermalexpansion(CTE).5.Themostsuitablematerialforaintegralhingedesign(typicalplasticthickness=0.25to0.5mmathinge)6.Canabendingloadmakesbothcompressiveandtensilestressinamembe7.Whatisthedesigncriteriausedinplasticscatch/snap?9.Whyisnaturalfrequencyimportantinvibrationanalysis?10.Whatisthedeflectionequationofacantileverbeamfixedatoneedge第二定律：運動定律(F＝ma)電腦輔助設計(ComputerAidedDesign，CAD)：繪圖軟體AutoCad2000。電腦輔助製造(ComputerAidedManufacturing，CAM)：CNC立式銑床。mv2/2=10*52/2=125Fe