(Engineering Drawing) Cecil Jensen, Jay D. Helsel, Dennis R. Short-Engineering Drawing and Design-McGraw-Hill (2008).pdf

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Contents Preface xii Computer-Integrated Manufacturing (CIM) 29 Acknowledgments xiv Review and Assignments 30 About the Authors xv PART 1 Chapter 3 ~11·. --------· BASIC DRAWING AND DESIGN 1 Drawing Media, Filing, Storage,
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   ontents Preface xii Acknowledgments xiv bout the Authors xv PART 1 BASIC DRAWING AND DESIGN 1 hapter 1 :?~i IJLW.Ia Engineering Graphics as a Language 2 1-1 The Language of Industry 2 Drawing Standards 3 1-2 Careers in Engineering Graphics 4 The Student 4 Places of Employment 4 Training Qualifications and Advancement S Employment Outlook S 1-3 The Drafting Office 5 1-4 Board Drafting 7 Drafting Furniture 7 Drafting Equipment 7 Review and Assignments 15 hapter 2 f ~JS· 11111111 · Computer-Aided Drawing CAD} 18 2-1 Overview 18 2-2 Components of a CAD System 19 Hardware 19 Software 24 2-3 Communication Environment 27 Local Area Networks LANs) 27 Wide Area Networks WANs) and the World Wide Web WWW) 27 Cooperative Work Environments 28 2-4 Computer-Aided Manufacturing CAM) 28 Computer Numerical Control 28 Robotics 28 Computer-Integrated Manufacturing CIM) 29 Review and Assignments 30 hapter 3 ~11·. · Drawing Media Filing Storage and Reproduction 32 3-1 Drawing Media and Format 32 Drawing Media 32 Standard Drawing Sizes 32 Drawing Format 33 3-2 Filing and Storage 36 Filing Systems 36 CAD 37 3-3 Drawing Reproduction 38 Reproduction Equipment 38 Review and Assignments 42 hapter 4 <ã: · IBIIB·-----· asic Drafting Skills 43 4-1 Straight Line Work, Lettering, and Erasing 43 Engineering Drawing Standards and Conventions 43 Board Drafting 44 CAD 54 Coordinate Input 50 4-2 Circles and Arcs 51 Center Lines 5 CAD 5 Drawing Circles and Arcs 51 CAD 53 4-3 Drawing Irregular Curves 53 CAD 54 4 4 Sketching 54 Sketching Paper 54 Basic Steps to Follow When Sketching 57 Review and Assignments 58 iii  iv Contents hapter ';~'~Ill,;. Applied Geometry 70 5 1 Beginning Geometry: Straight Lines 70 5 2 Arcs and Circles 73 5 3 Polygons 75 5 4 Ellipse 76 5 5 Helix and Parabola Helix 77 Parabola 78 Review and Assignments 79 hapter 6 IBB·-----· heory of Shape Description 86 6 1 Orthographic Representations 86 Theory of Shape Description 86 Orthographic Representations 86 Methods of Representation 87 CAD Coordinate nput for Orthographic Representation 90 6 2 Arrangement and Construction of Views 92 Spacing the Views 92 Use of a Miter Line 93 CAD 94 6 3 All Surfaces Parallel and All Edges and Lines Visible 94 6 4 Hidden Surfaces and Edges 95 6 5 Inclined Surfaces 96 6 6 Circular Features 96 Center Lines 96 6 7 Oblique Surfaces 97 6 8 One and Two View Drawings View Selection 98 One View Drawings Two View Drawings 6 9 Special Views 99 Partial Views 99 98 99 Rear Views and Enlarged Views 99 6 10 Conventional Representation of Common Features 101 Repetitive Details 1 1 Repetitive Parts 1 1 Square Sections 1 1 6 11 Conventional Breaks 102 6 12 Materials of Construction 102 Transparent Materials 1 2 6 13 Cylindrical Intersections 102 6 14 Foreshortened Projection 102 98 Holes Revolved to Show True Distance from Center 1 2 6 15 Intersections of Unfinished Surfaces 103 Review and Assignments 105 hapter 7 ': li~ll'. 11 · Auxiliary Views and Revolutions 132 7 1 Primary Auxiliary Views 132 Dimensioning Auxiliary Views 134 7 2 Circular Features in Auxiliary Projection 135 7 3 Multi Auxiliary View Drawings 136 7 4 Secondary Auxiliary Views 137 7 5 Revolutions 140 Reference Planes 14 Revolutions 14 The Rule of Revolution 142 True Shape of an Oblique Surface Found by Successive Revolutions 142 Auxiliary Views and Revolved Views 143 True Length of a Line 144 7 6 Locating Points and Lines in Space 145 Points in Space 145 Lines in Space 145 True Length of an Oblique Line by Auxiliary View Projection 146 Point on a Line 146 Point on Point View of a Line 148 7 7 Planes in Space 148 Locating a Line in a Plane 148 Locating a Point on a Plane 149 Locating the Piercing Point of a Line and a Plane Cutting Plane Method 15 Locating the Piercing Point of a Line and a Plane Auxiliary View Method 1SO 7 8 Establishing Visibility of Lines in Space 152 Visibility of Oblique Lines by Testing 152 Visibility of Lines and Surfaces by Testing 152 Visibility of Lines and Surfaces by Observation 153 7 9 Distances between Lines and Points 154 Distance from a Point to a Line 154 Shortest Distance between Two Oblique Lines 154 7 10 Edge and True View of Planes 157 Planes in Combination 158 7 11 Angles between Lines and Planes 160 The Angle a Line Makes with a Plane 16 Edge Lines of Two Planes 161 Review and Assignments 163 hapter 8 .\;>i ;·-------- ~<,, asic Dimensioning 177 8 1 Basic Dimensioning 177 Dimensioning 177 Units of Measurement 181  Dual Dimensioning 182 Angular Units 182 Reading Direction 183 Basic Rules for Dimensioning 183 Symmetrical Outlines 184 Reference Dimensions 184 Not-to-Scale Dimensions 184 Operational Names 184 Abbreviations 184 8-2 Dimensioning Circular Features 185 Diameters 185 Radii 186 8-3 Dimensioning Common Features 189 Repetitive Features and Dimensions 189 Chamfers 189 Slopes and Tapers 19 Knurls 191 Formed Parts 191 Undercuts 192 Limited Lengths and Areas 192 Wire Sheet Metal and Drill Rod 192 8 4 Dimensioning Methods 192 Rectangular Coordinate Dimensioning Polar Coordinate Dimensioning 193 Chordal Dimensioning 193 True-Position Dimensioning 193 Chain Dimensioning 193 193 Datum or Common-Point Dimensioning 195 8-5 Limits and Tolerances 195 Key Concepts 196 Tolerancing 197 Additional Rules for Dimensioning 2 8 6 Fits and Allowances 201 Fits 2 1 Allowance 2 1 Description of Fits 2 1 Interchangeability of Parts 2 2 Standard Inch Fits 2 2 Basic Hole System 2 4 Basic Shaft System 2 5 Preferred Metric Limits and Fits 2 5 8-7 Surface Texture 208 Surface Texture Characteristics 2 9 Surface Texture Symbol 2 9 Application 211 Machined Surfaces 2 Review and Assignments 216 hapter 9 :~:B: I: Sections 235 9-1 Sectional Views 235 cutting-Plane Lines 235 Full Sections 237 Section Lining 237 Contents 9-2 Two or More Sectional Views on One Drawing 238 9-3 Half-Sections 239 9 4 Threads in Section 240 Threaded Assemblies 24 9-5 Assemblies in Section 241 Section Lining on Assembly Drawings 241 9 6 Offset Sections 242 9-7 Ribs Holes and Lugs in Section Ribs in Sections 243 Holes in Sections 243 Lugs in Section 243 9-8 Revolved and Removed Sections Placement of Sectional Views 245 243 245 9-9 Spokes and Arms in Section 247 9-10 Partial or Broken-Out Sections 248 9-11 Phantom or Hidden Sections 248 9-12 Sectional Drawing Review 248 Review and Assignments 249 PART ·.~· FASTENERS MATERIALS AND FORMING PROCESSES 269 v hapter lQ . ~:.; gill Threaded Fasteners 270 10-1 Simplified Thread Representation 270 Screw Threads 271 Thread Forms 271 Thread Representation 271 Right-and Left-Hand Threads 272 Single and ultiple Threads 272 Simplified Thread Representation 273 Threaded Assemblies 273 Inch Threads 273 Metric Threads 276 Pipe Threads 278 10-2 Detailed and Schematic Thread Representation 278 Detailed Thread Representation 278 Threaded Assemblies 279 Schematic Thread Representation 279 10-3 Common Threaded Fasteners 280 Fastener Selection 28 Fastener Definitions 281 Fastener Configuration 281 Head Styles 281 Property Classes of Fasteners 282
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