机电工程专业英语 教学课件 作者 朱晓玲 Lesson 1.pptVIP

Lesson 1 Metal Cutting Technology 金属切削技术 Section I Words and Phrases Section II Text and Translation Section III Exercises and Answers Section I Words and Phrases raw material n.原材料 processing [prEu5sesiN] n.加工方法,加工,制造 assembly [E5sembli] n.装配 operation [7CpE5reiFEn] n.工序,运转,操作 machinery [mE5Fi:nEri] n. [总称] 机器,机械 manufacturing [7mAnju5fAktFEriN] n. 制造业,制造,生产 metal casting n.金属铸造,金属铸件 plastic molding n.塑料成型 machining [mE5Fi:niN] v.机械加工,加工 pressworking [`pres7w\:kiN] n.压力加工 enhance [in5hB:ns] vt.提高,增强 heat-treating n.热处理 Section I Words and Phrases polishing [5pCliFiN] n.抛光 workpart [5wE:k[pB:t] n.工件 geometry [dVi5Cmitri] n.几何学,几何形状 turning [5tE:niN] n.车削 milling [5miliN] n.铣削 drilling [5driliN] n.钻削 boring [5bC:riN] n.镗削 grinding [5^raindiN] n.磨削 EDM（Electron Discharge Machining）n.电火花加工 LBM （Laser Beam Machining）n.激光加工 USM (Ultrasonic Machining) n.超声波加工 machine tool n.机床 lathe [leiT] n.车床, milling machine n.铣床 Section I Words and Phrases drill press n.钻床 grinding machine n.磨床 machining center n.加工中心 tool [tu:l] n.刀具,工具,用具 turning tool n.车刀 milling cutter n.铣刀 twist drill n.钻头,麻花钻 grinding wheel n.砂轮 hardness [5hB:dnis] n.硬度, strength [streNW] n.强度,力量 tenacity [ti5nAsiti] n.韧性,坚韧 chemical stability n.化学稳定性 main movement n.主运动 feed movement n.进给运动 Section I Words and Phrases spindle [5spindl] n.主轴,杆,心轴 generatrix [5dVenEreitriks] n.母线 schematic diagram 示意图 cutting speed 切削速度 feed [fi:d] n.进给量 depth of cut n.背吃刀量,吃刀量 chip [tFip] n.切屑 continuous chip 连续切屑,带状切屑 segmented nonhomogeneous chip 分段不均匀切屑,节状切屑 discontinuous chip 不连续切屑,崩碎切屑 variable[5vZEriEbl] n. 变量,可变物,变数 Section II Text As we know, Production is a process which transforms raw materials into finished products by a sequence of processing and assemble operations, illustrated in Figure 1.1. Machinery manufacturing technology is the most important technology applied in processing operation. Processing operation can commonly be classified into four types: 1.