机械专业英语期末考试复习题库 (1)
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metal 金属nonferrous 非铁金属，有色金属ferrous 黑色金属 copper 铜aluminum 铝strength 强度hardness 硬度corrode 腐蚀foundry 铸造、铸造厂casting 铸件、铸造pig iron 生铁 drop forging 落锤锻tolerance 公差furnace 炉子pyrometer 高温计solder 焊料weld 焊接electrode 电极anneal 退火Melting point 熔点grinding 磨削加工tempering 回火quench 淬火、熄灭modulus 系数，模elasticity 弹性elastic 弹性的mesh 啮合worm 蜗杆spur gear 直齿圆柱齿轮helical gear 斜齿圆柱齿轮straight bevel 直齿锥齿轮worm gear 涡轮lubricant 润滑剂pitch 螺距lead 导程torque 扭矩rack 齿条left hand threads 左螺纹right hand threads 右螺纹cam 凸轮follower 从动件pulley 滑轮belt 皮带critical 临界点woodruff key 半圆键cantilever 悬臂tepered key 锥形键washer 垫圈spring 弹簧screw 螺钉bolt 螺栓coupling 联轴器nut 螺母chain 链条bearing 轴承rigid 刚性的intensity [强度flexibility 挠性inertia 惯性tolerance 公差pin-joint 铰接hinge 铰链brake 制动器lathe 车床thread 螺纹drilling 钻削boring 镗削milling 铣削turning 切削friction 摩擦力chip 屑片external grinder 外圆磨床die 模具internal grinder 内圆磨床finish 粗糙度surface grinder 平面磨床centerless grinder 无心磨床cutter grinder 工具磨床wear 磨损
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refinement 精加工roughing operations 粗加工twist drill 麻花钻twist drill 麻花钻trail 踪迹, 痕迹, 形迹jack 提高robotics 机器人技术manipulator 操作者, 操纵者, 机械手binary 二进位的, 二元的swarf 金属屑rake angle 前角rolling contact bearing 滚动轴承sliding contact bearing 滑动轴承angular contact bearing 角接触轴承Read-only memory 只读存储器Hard automation 刚性自动化Random access memory 随机存储Geometric modeling 几何造型Engineering analysis 工程分析Kinematics 运动学Automatic drawing 自动绘图 numerical control 数字控制factory Management 工程管理 Computer Numerical Control 计算机数控Direct numerical control 直接数控User interface 用户接口Knowledge base 知识库
（1）.cad ，cam 全称，功能
Cad ：Computer-aided design1. Geometric modeling 几何造型2. Engineering analysis 工程分析3. Kinematics 运动学 4. Automated drafting 自动绘图Cam ：computer-aided
manufacturing1. Numerical control 数字控制2. Process planning 工艺加工过程 3. Robotics 机器人技术 4. Factory management 工厂管理
（2）齿轮的种类：
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1.spur gear
2.helical gear
3.straight bevel
（3）铸造工艺包括那几步：1. making molds2.preparing and melting the metal3. pouring the metal into the molds4. cleaning the castings.
（4）列举几种常用的机械零部件：
Gear key shafe screw bolt bearing
（5）皮带传动是否精确为什么？
not precise Belt depend on friction on the pulleys and some slippage is inherent in their operation.
（6）道具磨损类型有哪些：
1. Flank wear
2. crater wear
3.notch wear
（7）钢的力学性能：
(1) Strength 强度(in tension张力, compression压力, shear 剪切力and bending弯曲力) (2) Stiffness刚性(3)
Ductility延展性(4) Impact strength 冲击强(5) Hardness硬度(6) Toughness韧性
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句子翻译
1对于深沟球轴承沟槽的深度大约是球直径的1/4
In deep-groove ball bearings, the races are approximately one fourth as deep as the ball diameter. 2.把金属件····焊接强度来决定
There are a number of methods of joining metal articles together, depending on the type of metal and the strength of the joint which is required.
3.软钎焊·······的工艺
Soldering is the process of joining two metals by a third metal to be applied in the molten state.
4.力学性能是什么
Mechanical properties are the characteristic responses of a material to applied forces.
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5.用于冷加工的机器叫做压力机The machine used for most cold-working operations is known as a press.
6.切削刀具····
The cutting tool must be made of an appropriate material; it must be strong, tough, hard, and wear resistant.
7.铸造工艺···
Foundry processes consist of making molds, preparing and melting the metal, pouring the metal into the molds, and cleaning the castings.
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