硬態(tài)切削過(guò)程的有限元仿真.pdf

1、哈爾濱理工大學(xué)碩士學(xué)位論文硬態(tài)切削過(guò)程的有限元仿真姓名：梁文杰申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：機(jī)械制造及其自動(dòng)化指導(dǎo)教師：劉獻(xiàn)禮20050301FINlTEELEMENTSIMULATING0FHARDCUTTINGCoURSEAbstractHardcuttingisatechnologythattakescuttinghardenedsteelsasamethodofsenti—finishmachiningorfinishmachinin

2、gThetraditionalmanufactureordersuchascuttingharden—grindingmaybechangedbyusingthistechnology，andthewearinessstrengthandproductivityofworkpieceisimproved，andtheconsumedpowerisreducedThehard—drycuttingisalsoatechnologythat

3、ispropitioustoprotectenvironmentandcarryoutgreenmanufactureFiniteelementmethodisoneofthepowerfulnumericalanalysismethodsapplytoengineeringIthasmanymeritscomparetotestingresearch，suchassavetime，savemanpowersaveresourceand

4、SOonThispaperbasedonfiniteelementtheory，wasdeadagainstthecharacteristicofhardcutting，foundafiniteelementmodelforhardcuttingInfiniteelementsimulationofcuttingcourse，correctpredigestedmodelnotonlymayimproveprecisionofcalcu

5、latedresult，butalsoCallsmartlyreducecalculatingtimeThepaperadoptsplanestrainmodeltodealwithplanarhardcutting，smartlypredigestscalculatedmodel；introducesafunctionabouttemperaturetomaterialPhysicalandmechanicalpropertysimu

6、latingmaterialnon—linearity；usingelementrezonetoresolvingcontactpenetrateproblemandsimulatingchipshape；importsupdatedLagrangeincrementfiniteelementmethodfordisposinggeometrynonlinearityprobleminthehardcuttingcoursing；and

7、programsanusersubprogramtorealizingfiniteelements’localsubdivision，notonlyensuringcalculatedprecise，butalsosavingcomputer’Sresource；andadoptsamendedCoulombfrictionmodeltosolvingfrictionprobleminhardcuttingAllthesemodelin