Paperback. Pub Date: 258 language: Chinese Publisher: Tsinghua University Press. this book is related to the basic requirements of the teaching course teaching and * new promulgation based on the Engineering Curriculum Teaching Teaching and * New promulgation based on the National Institute of Education. National standards. refer to similar textbooks and related literature. summarized for many years of teaching experience and teaching reform results .

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Bibliographic Details

Title: Engineering(Chinese Edition)
ISBN 10: 7302480982
ISBN 13: 9787302480983
Binding: paperback
Condition: New

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Synopsis

本书是根据国家教育部制定的高等工科类学校本科“工程制图课程教学基本要求”和*新颁布的有关国家标准，参考同类教材和相关文献，在总结多年的教学经验和教学改革成果的基础上编写而成的。全书共9章，主要内容包括制图的基本知识和基本技能，点、直线、平面的投影，立体的投影，组合体，轴测图，机件的图样画法，零件图，标准件与常用件及装配图。本书突出反映了现代科学技术的新内容及新知识。本书与同时出版的《工程制图习题集》配套使用。本套教材可供高等院校机械类、近机类本科学生学习，也可作为其他专业教师、学生及工程技术人员的参考用书。《工程制图》根据国家*新颁布的有关标准，并总结多年的教学经验和教学成果，精选画法几何学部分内容，结合教学特点和教学规律，调整审读，使内容更加紧凑；本书加强组合体的内容，注重徒手绘制草图的方法与技能训练，为学生今后的工作打下基础。全书共9章，可结合本书配套的《工程制图习题集》综合使用，可作为高等院校机械类、近机械类本科学生学习使用，也可供工程技术人员参考使用。第1章制图的基本知识和基本技能本章重点介绍国家标准《技术制图》和《机械制图》中的有关规定和基本的几何作图方法，以及平面图形的基本画法、尺寸标注、手工绘图工具的使用技能和徒手绘图的技能。1.1国家标准《技术制图》和《机械制图》的有关规定工程图样是工程技术界的通用语言，是现代工业生产中必不可少的技术资料，具有严格的规范性。为保证规范性，适应现代化生产、管理的需要和便于技术交流，国家制定并颁布了一系列相关的国家标准，简称“国标”。它包括强制性国家标准(代号为“GB”)、推荐性国家标准(代号为“GB/T”)和国家标准化指导性技术文件(代号为“GB/Z”)。本节摘录了有关《技术制图》和《机械制图》国家标准中关于图纸幅面和格式、比例、字体、图线、尺寸标注的基本规定。1.1.1图纸幅面和图框格式1.图纸幅面图纸幅面是指图纸宽度与长度组成的图面。绘制图样时，应该遵守国家标准《技术制图图纸幅面和规格》(GB/T14689—2008)，采用表11中规定的图纸基本幅面尺寸。基本幅面代号有A0、A1、A2、A3、A4五种。必要时可采用由基本幅面的短边成整数倍增加后的幅面。表11图纸幅面及图框格式尺寸单位：mm幅面代号幅面尺寸周边尺寸B�LaceA0841�1189A1594�841A2420�594A3297�420A4210�2972510520102.图框格式图纸上限定绘图区域的线框称为图框。图框在图纸上必须用粗实线画出，图样绘制在图框内部。其格式分为不留装订边和留装订边两种，如图11和图12所示。同一产品的图样只能采用一种图框格式。图11不留装订边图框格式图12图框格式及标题栏方位为复制或缩微摄影时方便定位，应在图纸各边长的中点处绘制对中符号。对中符号是从图纸边界画入图框内5mm的一段粗实线。当对中符号处在标题栏范围内时，则伸入标题栏部分省略不画。3.标题栏标题栏位于图纸的右下角。标题栏是由名称及代号区(单位名称、图样名称及图样代号等)、签字区、更改区和其他区(材料、比例、数量等)组成的栏目。其格式和尺寸由国家标准《技术制图标题栏》（GB/T10609.1—2008）

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