华南理工大学《机械制造技术基础》CHAPTER5-New [兼容模式].pdfVIP

ChapterChapter 55 MachiningMachining onon NonrotationalNonrotational PartsParts 5.15.1 MillingMilling 5.2 Shapping(g(成形),), pplanningg and slottingg 5.3 Broaching 5.4 Grinding 5.5 Fixture or Jigs for Nonrotational Surface 5.6 Typical Machining Scheme for NonrotationalNonrotational PartsParts 5.15.1 MillingMilling 5.1.1 Overview ? Milling is a machining process in which metal is removed by a rotating multiple-tooth cutter; each tooth removes a smallsmall amountamount ofof metalmetal withwith eacheach revolutionrevolution ofof thethe spindlespindle. ? produce flat surfaces in any orientation as well as surfaces of revolution, helical surfaces and contoured surfaces of various configurations. ? Axis of tool rotation is perpendicular to feed direction. ?? MillingMilling isis anan interruptedinterrupted cuttingcutting operationoperation. ? The relatively small size of the chips in milling. ? The variation in thickness within each chipp. 5.1.1 Overview Application overview Shoulder milling FFace milliilling 5.1.1 Overview Application overview PProfilfile milliilling 5.1.1 Overview Application overview 5.1.1 Overview Basic milling operations a,b,c-铣平面(plain milling) d,e-铣沟槽(Slot milling) f-铣台阶(shoulder milling) g-铣铣T型槽型槽(T-slot milling) h-切断切断(saw) 5.1.1 Overview Basic milling operations i,j-铣角度槽(Angle milling) k,l-铣键槽(Keyway milling) m-铣齿形(Gear milling) n-铣螺旋槽铣螺旋槽(Thread milling) o,p-铣曲面铣曲面(Profile Milling 5.1.2 Milling parameters and milling operations FFour milliilling parameters ?d n ?? cuttingcutting speedspeed vvc 0 0 (m/min)(m/min)