外文翻译--新工具使新机器设计最优=2000字符

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1、NewToolsMaximizeNewMachineDesignsTheprimarytoolingconcernswhenmachiningaluminumare:minimizingthetendencyofaluminumtosticktothetoolcuttingedges;ensuringthereisgoodchipevacuationformthecuttingedge;andensuringthecorestrengthofthetoolsissufficienttowithstandthecuttingforceswithoutbreaking.

2、TechnologicaldevelopmentssuchastheMakinoMAG-Seriesmachineshavemadetoolingvendorsrethinktheanystate-of-the-artmachinetechnology.Itisvitaltoapplytherighttoolingandprogrammingconcepts.Materialscoatingsandgeometryarethethreeelementsintooldesignthatinterrelatetominimizetheseconcerns.Ifthese

3、threeelementsdonotworktogether,successfulhigh-speedmillingisnotpossible.Itisimperativetounderstandallthreeoftheseelementsinordertobesuccessfulinthehigh-speedmachiningofaluminum.MinimizeBuilt-UpEdgeWhenmachiningaluminum,oneofthemajorfailuremodesofcuttingtoolsthematerialbeingmachinedadhe

4、restothetoolcuttingedge.Thisconditionrapidlydegradesthecuttingabilityofthetool.Thebuilt-upedgethatisgeneratedbytheadheringaluminumdullsthetoolsoitcannolongercutthroughthematerial.Toolmaterialselectionandtoolcoatingselectionarethetwoprimarytechniquesusedbytooldesignerstoreduceoccurrence

5、ofthebuilt-upedge.Thesub-microngraincarbidematerialrequiresahighcobaltconcentrationtoachievethefinegrainstructureandthematerial’sstrengthproperties.Cobaltreactswithaluminumatelevatedtemperatures,whichcausesthealuminumtochemicallybondtotheexposedcobaltofthetoolmaterial.Oncethealuminumst

6、artstoadheretothetool,itquicklyformsabuilt-upedgeonthetoolrenderingitineffective.Thesecretistofindtherightbalanceofcobalttoprovideadequatematerialstrength,whileminimizingtheexposedcobaltinthetoolsforaluminumadherenceduringthecuttingprocess.Thisbalanceisachievedusingcoarse-grainedcarbid

7、ethatprovidesatoolofsufficienthardnesssoastonotdullquicklywhenmachiningaluminumwhileminimizingadherence.ToolCoatingsThesecondtooldesignelementthatmustbeconsideredwhentryingtominimizethebuilt-upedgeisthetoolcoating.ToolcoatingchoicesincludeTiN,TiAIN,AITiN,chromenitrides,zirconiumnitri