图 取样 Sample frame ND RD Sample frame(s】 TD orthogonal.preferably right-handed frame Preterably chosen according to important directions or surfaces associated with specimen ·rolling:RD.TD.ND uniaxial (e.g.tension compression) 010 ·principal axis:Z. .X.Y perpendicular(arbitrary) 00) 礼制表而 轧谢方狗 图11轧制刑材金相试样的取 1一与轧捌老预℉行的纵断面2一与轧制表面垂直的纵面 3一横断面4一放射纵断阿6一扰向纵断面 材料科学与工程学院 6 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 取样 6
图 取样 niplo.cumm 面au,一 学与工程学院 7 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 取样 7
③ 取样 A WoSs C SC77 D 8 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 取样 8
取样 (a) Microtomy:切片 Useful for preparing soft materials such as polymer samples. Steel,glass or diamond knives in a microtome can Specimen Specimen holder block Block Specimen cut samples into very thin Knife sections. Knife Cut section Sections (b) (a)Adapted from http://www.me.ust.hk/-meiswu/. Microscope slide Copper (b)From http://blass.com.au/definitions/microtome mesh grid 材料科学与工程学院 9 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 取样 9 切片
图 取样 ·电火花放电加工 (electric discharge machining) DK7740维度 10 本市开可4北木有极公风 图10-4数控线切割加工原理 1一数控装置；2一滚丝简：3一导轮：4一电极丝；5一工件； 6一喷嘴；7一绝缘板；8一高频脉冲发生器：9一泵； 10一工作液；11一步进电机 材料科学与工程学院 10 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 取样 • 电火花放电加工 (electric discharge machining) 10