ThemachinabilityofmaterialThemachinabilityofamaterialusuallydefinedintermsoffourfactors:(1).Surfacefinishandintegrityofthemachinedpart;(2).Toollifeobtained;(3).Forceandpowerrequirements;(4).,goodmachinabilitygoodsurfacefinishandintegrity,longtoollife,,longandthin(stringy)curedchips,ifnotbrokenup,,,,,-calledfree-(second-phaseparticles),,thechipsproducedbreakupeasilyandaresmall;,shape,distribution,,whicharebothchemicallysimilartosulfur,,,withbuilt-,-resulfurizedgradesofsteel,,copper,,therefore,leadactsasasolidlubricantandissmearedoverthetool-chipinterfacedurin
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