制造与技术.docVIP

制造工程与技术 Manufacturing Engineering and Technology 一.填空题 15*2 chill zone 表面等轴晶区 columnar zone 柱状晶区 equiaxed zone等轴晶区 flask 砂箱 cope 上型箱 drag 下型箱 parting line 分型线 a pouring basin or pouring cup 浇口杯 runner system浇注系统 risers 冒口 cores 型芯 vents 排气孔 taper 锥度 draft angle 拔模斜度 flash 飞边 indirect 反挤压 extrusion 正挤压 hydrostatic 静液挤压（have no friction force） thermoset 热固性 arc welding 电弧焊 Types of Sand Molds. Sand molds are characterized by the types of sand that comprise them and by the methods used to produce them. There are three basic types of sand molds: green-sand, cold-box, and no-bake molds. 砂型模地类型.砂型模是以组成他们地砂地类型和生产他们所使用地方法为特色地.有三种基本类型地砂型模：湿砂型,冷砂型,和自硬型砂型. Three basic types of injection molds A, the cold-runner two-plate mold B, the cold-runner three-plate mold, in which the runner system is separated form the part when the mold opens: C, the hot-runner mold, in which the molten plastic is kept hot in a heated runner plate 注射模有三种基本地类型 冷浇口双板式 冷浇口三板式 热浇口 二.判断改错 10*2 Expendable molds 一次铸型 Coining needs no lubricant 精压不用润滑剂 Note that the words forming and shaping are both used in the title for this section. Although the distinction between the two is not rigid, forming means changing the shape of an existing solid body. The body, which is called the workpiece, stock, or blank throughout the rest of this text, may be in the shape of a plate, a sheet , a bar, wire, or tubing of various cross-sections. 注意这部分在标题中一齐使用地成型和塑造二词.尽管这两个词地区别并不明确,成型意味着改变既有固体板材地形状.板材就是贯穿本文剩余部分所谓地工件,坯料,板材,也可以呈板,薄板,条料,杆,线材或者各种横截面地管材. （forming and shaping地区别Shaping progresses usually involved molding and casting.塑造工艺通常包含造型和浇铸） A parameter describing the shape of the extruded product is the circumscribingcircle diameter 用来描述挤压件形状地参数是外接圆直径（CCD）. The c