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页数:8页
时间:2020-03-31
《铸造的优点和应用.doc》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Metalcastingisuniqueamongmetalformingprocessesforavarietyofreasons.perhapsthemostobviousisthearrayofmoldingandcastingprocessesavailablethatarecapableofproducingcomplexcomponentsinanymetal,ranginginweightfromlessthananouncetosinglepartsweighingseveralhundredtons.Foundr
2、yprocessesareavailableandinusethatareeconomicallyviableforproducingasingleprototypepart.Whileothersachievetheireconomiesincreatingmillionsofthesamepart.Virtuallyanymetalthatcanbemeltedcanandisbeingcast.thisarticlewillexaminetheadvantagesofthemetalcastingprocess,themaj
3、orapplicationsofcastcomponents,andthetechnicalandmarkettrendsthatareshapingthefoundryindustryandtheproductsitproduces.Itisestimatedthatcastingareusedin90%ormoreofallmanufacturedgoodsandinallcapitalgoodsmachineryusedinmanufacturing.Thediversityintheenduseofmetalcasting
4、sisadirectresultofthemanyfunctionaladvantagesandeconomicbenefitsthatcastingsoffercomparedtoothermetalformingmethods.thebeneficialcharacteristicsofacastcomponentaredirectlyattributabletotheinherentversatilityofthecastingprocess.Beyondtherapidlyemergingtechnologiesthata
5、rekeepingmetalcastingintheforefrontinthemetalformingindustry,castingpossesmanyinherentadvantagesthathavelongbeenacceptedbythedesignengineerandmetalpartsuser.Intermsofcomponentdesign,castingoffersthegreatestamountofflexibilityofanymetalformingprocess.Thecastingprocessi
6、sidealbecauseitpermitstheformationofstreamlined,intricate,integralpartsofstrengthandrigidityobtainablebynoothermethodoffabrication.Theshapeandsizeofthepartareprimaryconsiderationsindesign,andinthiscategory,thepossibilitiesofmetalcastingareunsurpassed.Theflexibilityofc
7、astmetaldesigngivestheengineerwidescopeinconvertinghisideasintoanengineeredpart.Thefollowinglistoffunctionaladvantagesofcastingsandthemetalcastingprocessillustratewhycastingshavebeenandcontinuetobethechoiceofdesignengineersandmaterialsspecifiers.Rapidtransitiontofinis
8、hedproduct.thecastingprocessinvolvespouringmoltenmetalintoacavitythatisclosetothefinaldimensionsofthefinishedcomponent;there
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