ThebookisasupportingmaterialofEngineeringDrawingtextbook.ItishelpfulforthestudentstomastertherelevantknowledgeandEnglishvocabularyofengineeringdrawing.
Thebookcoversthefundamentalknowledgeofmechanicaldrawing，basisofprojection，projectionofpoints，linesandplanes，projectionofsolids，objects，representationsforworkpieces，standardpartsandcommonlyusedparts，detaildrawing，assemblydrawings，pictorialdrawing，computerdrawingandmodelingpractices，andsimulationtestpapers.
Thebookcanbeusedasatextbookforallengineeringmajorsofcollegeoruniversity.Itisalsoavailableforengineeringtechniciansandselflearners.

In order to strengthen the international exchange and lay a good foundation on the engineering drawing， the exercise workbook of engineering drawing is edited on basis of teaching practices. The workbook has the following features：
（1） The newly published national standards about “Mechanical Drawing” and “Technical Drawing”are adopted.
（2） Some exercises such as construction design， drawing by computer， simulation test papers are added.
（3） The comprehensive exercises are included in the workbook， so it can be used with the ordinary textbook simultaneously.
The workbook has twelve chapters， such as fundamental knowledge of mechanical drawing， basis of projection， projection of points， lines and planes， projection of solids， objects，representations for workpieces， standard parts and commonlyused parts， detail drawing， assembly drawings， pictorial drawing， computer drawing and modeling practice， and simulation test papers.
The workbook is edited by Yang Guanghui， Yang Hao， Xu Qian， Chen Ping， Chen Hua， Li Xiaowu， Cao Tong， Fan Bailin， Huo Ping and Ding Lingrong.Yang Guanghui and Yang Hao are the chief editor.
Thank for the supports of the Youth Teaching Key Talents Training Program of University of Science and Technology Beijing， the Project on Teaching Reform and Research of Undergraduate Education of University of Science and Technology Beijing in 2017 (JG2017M14) and in 2018 (JG2018M15), the Teaching Material Construction Foundation of University of Science and Technology Beijing (JC2019YB017).
Due to various limitations， The workbook may contain some mistakes， and all criticisms and corrections from readers are welcome. Your suggestions can be emailed to yanggh@ustb.edu.cn.

Chapter 1Fundamental Knowkledge of Mechanical
Drawing1

11Instruction for basic drawing exercises1

12Engineering letter and number exercises （write in HB pencils）2

13Basic drawing exercises （drawing on A3 sheet）3


Chapter 2Basis of Projection5

21Draw the three principal views according to the cabinet oblique
drawing5

22Complete the third view6

23Add the missing details8

24Choice9

25Comprehensive exercises10


Chapter 3Projection of Points, Lines and Planes11

31Projection of points11

32Projection of lines and planes12

33Relative position of lines and planes13

34Transform of projection14

35Complete the third view by analysis of lines and planes18


Chapter 4Projection of Solids19

41Intersection of plane and polyhedron19

42Intersection of plane and solid with curved surface20

43Intersection of solids with curved surface24

44Comprehensive exercises of intersections28


Chapter 5Objects30

51Add the missing details of object30

52Complete the third view of object31

53Dimensioning exercises of object35

54Construct the object37


Chapter 6Representations for Workpieces41

61Views41

62Sectional views42

63Cross sections46

64Comprehensive exercises of sectional views 47

65Comprehensive exercises of views, sectional views and cross
sections55


Chapter 7Standard Parts and Commonlyused Parts57

71Simplified representation of screw thread57

72Notes and labeling for screw thread 59

73Threaded fasteners60

74Key and pin62

75Bearing and spring63

76Gears64

77Comprehensive exercises of standard parts and commonlyused
parts65


Chapter 8Detail Drawing66

81Surface roughness66

82Tolerances and fits67

83Geometrical tolerance69

84Process structure of parts70

85Reading detail drawing72


Chapter 9Assembly Drawings80

91Assembly process structures80

92Read the assembly drawings and analyze the representation
methods81

93Read the assembly drawings and draw the detail drawings83

94Draw assembly drawings89

95Measurement and drawing of gear oil pump95


Chapter 10Pictorial Drawing99

101Isometric axonometric drawing99

102Isometric axonometric sectional drawing101

103Cabinet oblique drawing102

104Sketch the pictorial drawing by freehand104


Chapter 11Computer Drawing and Modeling Practice106

111Basic operation of software106

112Basic drawing operation107

113Setting the layer108

114Editing operation of drawing109

115Pattern filling110

116Dimensioning111

117Block operation112

118Comprehensive exercises of 2D drawing113

1193D modeling and assembling115


Chapter 12Simulation Test Papers118

121Simulation test paper （Ⅰ）118

122Simulation test paper （Ⅱ）122

123Simulation test paper （Ⅲ）126

124Simulation test paper （Ⅳ）130

杨光辉，博士学位，现任北京科技大学机械工程学院副教授，“机械制图”课程负责人，教学骨干，多年从事一线教学和研究工作，先后主持参与多项国家和省部级科研项目，获得多项发明专利授权。在国内外主要期刊上发表论文30余篇，其中美国《科学引文检索》（Science Citation Index，SCI）、美国《工程检索》（Engineer Index，EI）10余篇；主编或参编《轧钢设备及自动控制》《实用机械制图与设计手册》《机械设计制图》等多种书籍。曾先后获得中国钢铁工业协会、中国金属学会冶金科学技术奖二等奖，湖北省科学技术进步二等奖，2018年获得北京市教育教学成果一等奖等。杨皓，硕士，讲师。曾经主编和参编《机械制图》、《机械设计制图》、《机械工程制图基础》、《机械制图与设计简明手册》、《工程图学CAD实践(Inventor2010)版》等教材。曾经获得过国家级教育教学成果奖二等奖、北京市教育教学成果奖等多项奖项。