徐州工程学院机械专业英语范围

《徐州工程学院机械专业英语范围》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、名词解释1.alloy合金2.polymer聚合物3.cyaniding氰化4.carbonitriding碳気共渗5.allowance公差6.shearzone剪切变形区7.fracturetoughness断裂韧性8.chemicalmechanicalpolishing化学机械抛光9.gasspray气体喷涂10.electroplating电镀11.clearanceangleC12.laserbeammachining激光加工13.dimensioning尺寸标注14.electro-dischargemachining电火花加工二、英译汉第一章1

2、.Manymetalsandalloyshavehighdensitiesandareusedinapplicationswhichrequireahighmass-to-volumeratio.许多金属和合金具有高密度，因此被用在需要较高质量体积比的场合。2.Itisimpossibletoseethroughmetals,sincethesevalenceelectronsabsorbanyphotonsoflightwhichreachthemetal.因为这些价电子吸收到达金属的光子，所以透过金属不可能看得见。3.Fibersaredifficultt

3、oprocessintocomposites,makingfiber-reinforcedcompositesrelativelyexpensive.把纤维放入复合材料较困难，这使得制造纤维加强型复合材料相对昂贵。第二章4.Itshouldberememberedthatthetransitionsthathavebeendescribedbythephasediagramsareforequilibriumconditions,whichcanbeapproximatedbyslowcooling.应该记住由状态阁描述的这种转化只适合于通过缓慢冷却的近似平衡

4、条件5.Spheroidizingistheprocessofproducingastructureinwhichthecementiteisinaspheroidaldistribution.球化是使渗碳体产生成类似球状分布结构的工艺。6.Liquidnitridingutilizesmoltencyanidesaltsand,asingasnitriding,thetemperatureisheldbelowthetransformationrange.液体渗氮利用熔化的氰化物盐，就像气体渗氮，温度保持在低于转化范围内。第七章7.Highertherake

5、angle,betteristhecuttingandlessarethecuttingforces,increasingtherakeanglereducesthemetalbackupavailableatthetoolrakeface.前角越大，则切削越好且切削力越小，增加前角可以减少刀具前倾而上产生的金属阻塞。8.Plasticdeformationcanbecausedbyyielding,inwhichcasestrainedlayersofmaterialwouldgetdisplacedoverotherlayersalongtheslip-p

6、laneswhichcoincidewiththedirectionofmaximumshearstress.屈服能导致塑性变形，在这种情况下材料变形层沿着与最大剪应力方向一致的滑移面被其它层所収代。9.Thecontinuouschipischaracterizedbyageneralflowoftheseparatedmetalalongthetoolface.连续的切屑一般具有分离金属沿刀具而流动的特征。第九章6.Lappinghastwomainfunctions.Firstly,itproducesasuperiorsurfacefinishwith

7、allmachiningmarksbeingremovedfromthesurface.Secondly,itisusedasamethodofobtainingveryclosefitsbetweenmatingpartssuchaspistonsandcylinders.研磨有两个主要作用。首先，它通过去除所有机加工痕迹能产生较好的表面光洁度。其次，它能用作获得像活塞与气缸之类配件间过盈配合的方法。11.Smoothnessofthemetalsurfaceisoneoftheprimaryandmostadvantageouseffectsofelect

8、ropolishing.金属表面的平滑