模具专业英语-12 - 复习课件.pptVIP

复习课;OUTLINE;*;UNIT 1 ;alloy [ ?l ?i ] . . n. 合金; v. 使...成合金,搀以劣质,减低成色 copper [ k ?p? ] . . a. (紫)铜色的,铜(制)的; n. 铜,铜币,铜制品 brass [ brɑ:s ] . . n. 黄铜 bronze [ br?nz ] . . a. 青铜色的; n. 青铜; v. 青铜,青铜色,青铜器; vi. 使成青铜色 nickel [ nikl ] . . n. 镍,镍币,五分镍币; v. 镀镍于 silver [ silv? ] . . a. 银色的; n. 银; v. 镀银 carbon steel 碳钢 ductile [ d?ktail ] . . a. 易延展的,柔软的 ;deformation 变形 fracture. 断裂 screw [ skru: ] . . n. 螺丝钉 compression strength 压缩强度 tensile strength 拉伸强度 Shear strength 剪切强度 Torsion strength 扭转强度 Bend strength 弯曲强度 Fatigue strength 疲劳强度 Impact strength 冲击强度 Plastic deformation 塑性变形 ;Ductility 延展性 Hardness 硬度 scratch [ skr?t? ] . . n. 抓痕 turning [ t?:ni? ] . . n. 车削 drilling [ ‘drili? ] . . n.,钻削 Milling 铣削 Shaping 刨削 broaching. . 拉削,拉孔 gringding n. 磨削 lapping and polishing 研磨和抛光 tungsten [ t??st?n ] . . n. 钨,钨锰铁矿,金属元素 ;Translations (1) Tool steel （工具钢）which is a special group of high carbon steels produced in small quantities to high quality specifications. Tool steels are used for a wide range of cutting tools and forming dies. （工具钢是一种量少质优的特殊高碳钢，广泛应用于切割工具和成型模具。） (2) Compression strength（压缩强度）—the ability to resist forces which tend to squeeze（压缩、挤） the material into a new shape. It is basically the opposite of tensile strength. Excessive compression force will cause the material to rupture（破裂、断裂）(buckling 变形、弯曲and splitting 爆裂). ;(3) Bend strength（弯曲强度）—the ability of a material to resist the combination of tensile and compression forces. When a material is bent, the material on the inside of the bend must compress（压缩） while that on the outside portion must stretch（伸展）. A material must have bend strength to undergo bending processes. ;(4) hardening is a process of heating a piece of steel to a temperature within or above its critical range and then cooling it rapidly to increase its hardness and te