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Cuttingprocessesarethoseinwhichapieceofsheetmetalisseparatedbyapplyingagreatenoughforcetocausedthematerialtofail.Thecutbeingformedmayfollowanopenpathtoseparateaportionofmaterialoraclosedpathtocutoutandremovethatmaterial.Thegeometricpossibilitiesforacuttingprocessdependonthetechnologyused,butmostarecapableofcuttingoutany2Dshape.Someofthemostcommonsheetmetalcuttingprocessesuseshearingforcestoseparatethematerial.Adescriptionofthoseprocessescanbefoundintheprevioussection.Inthissection,cuttingprocessesthatuseotherforces,suchthermalenergyorabrasion,willbediscussed.Somecommonmethodsofsheetmetalcuttingthatusesuchforcesincludethefollowing:
Laserbeamcutting
Plasmacutting
Waterjetcutting。
我认为下料就是制作铆焊用料的过程,比如钢板,棒料,管料,型材等,所以基本不是剪断,割断,就是锯断的。所以上面的英文中可以看出,下料就是cuttingprocess。不知对不对!自我感觉应该很接近了! |
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