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1、孔加工技术的发展方向内蒙古工业大学毕业设计外文翻译ThedevelopmenttrendofholeprocessingtechnologyDrillingaccountingforthetotalamountofprocessing1/3inmechanicalprocessing.Holeprocessingissemi-enclosedcutting,chipremoval,heattransferbulk,cuttingfluidpouringmoredifficult,andthedifficultyofprocessinglarge.Withtheadvances
2、inscienceandtechnology,theaccuracyandsurfaceroughnessoftheholepartsofmachineryproducts,increasingdemandforprecisionholeprocessingisoftentheproductionofkeysolved.Holemachiningtechniquesshouldstudytheprocessingmachineequipmentandtools(so-calledhardware),butalsotostudyhowtheeffectiveuseofthese
3、equipmenttechnology(so-calledsoftware).ThedefinitionandclassificationoftheholeWhatisthehole?AccordingtonationalstandardGB1800-1979:Holemainlyreferstothecylindricalinnersurface.Therefore,thegeneralizedholereferstotheinclusionsurface.Theholeusuallyaccordingtotheclassificationofthefollowingmet
4、hods:(1)theshapepoints.Cylindricalbore,taperedbore,drum-shapedholes,polygonalhole,flowerskeyholeandHole,andspecial-shapedhole(suchasbendingholes).Amongthem,themostextensiveuseofthecylindricalbore.(2)Accordingtotheshapepoints.Through-holeandblindhole(barrierholes);deephole(theholedepthLandap
5、ertureDratioofmorethanfiveoftheholes,L/Dreferredtoasthedepthtodiameterratiooraspectratio;L/D=5to20generageneraldeephole,amedium-deepholeintheL/D>2030L/D>30〜100calledaspecialdeep-hole)andashallowhole.(1)thesizeoftheaperturepoints.Macroporous(>100mm),ordinaryhole(D=10〜100mm)andholes(
6、D=1〜10mm)andmicropores(D<lmmhole).(2)accordingtotheprocessingmechanism.Machiningandspecialprocessing(seeTable1),mechanicalandelectricalcompositeprocessing.Althoughthespecialprocessingmethodismore,butmoreexpensiveequipmentandtheprocessingefficiencyofthereasons,whethernoworintheforeseeable
7、future,thetraditionalmechanicalprocessingwillremaintheprimarymeansofholeprocessing.(3)dividedbythemachiningaccuracy.Roughhole(suchasholedrillingandroughboring),semi-fineholes(suchasreaming,crudehinge,semi-fineboringholes)andprecisionholes(suchasfinehinge
