Machine Drawing

About the Book: Written by three distinguished authors with ample academic and teaching experience, this textbook, meant for diploma and degree students of Mechanical Engineering as well as those preparing for AMIE examination, incorporates the latest standards. The new edition includes the features of assembly drawings, part drawings and computer-aided drawings to cater to the needs of students pursuing various courses. The text of the new edition has been thoroughly revised to include new concepts and practices in the subject. It should prove an ideal textbook. Contents: Introduction Preface to Third Edition ......Page 8 Preface to First Edition ......Page 10 Contents......Page 12 1.1.3 Need for Correct Drawings......Page 24 1.2.3 Part Drawing......Page 25 1.2.4 Assembly Drawing......Page 26 2.2.2 Designation of Sizes......Page 33 2.2.4 Borders and Frames......Page 34 2.2.6 Metric Reference Graduation......Page 35 2.3.3 Scale Specification......Page 36 2.4 Lines......Page 37 2.4.1 Thickness of Lines......Page 38 2.4.2 Order of Priority of Coinciding Lines......Page 39 2.4.3 Termination of Leader Lines......Page 40 2.5.1 Dimensions......Page 41 2.6.1 Hatching of Sections......Page 43 2.6.2 Cutting Planes......Page 44 2.6.3 Revolved or Removed Section......Page 46 2.7.2 Machine Components......Page 47 2.8.1 General Principles......Page 48 2.8.2 Method of Execution......Page 51 2.8.4 Methods of Indicating Dimensions......Page 53 2.8.5 Arrangement of Dimensions......Page 55 2.8.6 Special Indications......Page 56 2.9 Standard Abbreviations......Page 60 2.10 Examples......Page 61 3.2 Principle of First Angle Projection......Page 66 3.3.3 View from the Side......Page 67 3.5 Designation and Relative Positions of Views......Page 68 3.6 Position of The Object......Page 69 3.7 Selection of Views......Page 70 3.7.2 Two-View Drawings ......Page 71 3.7.3 Three-View Drawings......Page 72 3.9 Spacing The Views......Page 73 3.10 Examples......Page 74 4.2 Full Section ......Page 87 4.3 Half Section......Page 88 4.4 Auxiliary Sections......Page 89 4.5 Examples......Page 90 5.2 Screw Thread Nomenclature......Page 100 5.3 Forms of Threads......Page 101 5.3.1 Other Thread Profiles ......Page 102 5.4 Thread Series......Page 103 5.7 Right Hand and Left Hand Threads......Page 104 5.8 Representation of Threads......Page 105 5.8.1 Representation of Threaded Parts in Assembly......Page 107 5.9.1 Methods of Drawing Hexagonal (Bolt Head) Nut......Page 108 5.9.3 Hexagonal and Square Headed Bolts......Page 111 5.9.5 Other Forms of Bolts......Page 112 5.9.6 Other Forms of Nuts ......Page 114 5.9.7 Cap Screws and Machine Screws......Page 115 5.9.8 Set Screws......Page 116 5.10.1 Lock Nut......Page 117 5.10.3 Locking by Castle Nut......Page 118 5.10.7 Locking by Screw......Page 119 5.10.9 Locking by Spring Washer......Page 120 5.11.3 Rag Foundation Bolt......Page 121 5.11.4 Lewis Foundation Bolt......Page 122 5.11.5 Cotter Foundation Bolt......Page 123 6.2.1 Saddle Keys......Page 126 6.2.2 Sunk Keys......Page 127 6.3 Cotter Joints......Page 132 6.3.3 Cotter Joint with a Gib......Page 134 6.4 Pin Joints......Page 135 6.4.1 Knuckle Joint......Page 136 7.2.2 Flanged Couplings......Page 138 7.3.1 Bushed Pin Type Flanged Coupling......Page 142 7.4.1 Claw Coupling......Page 143 7.4.2 Cone Coupling......Page 145 7.5.1 Universal Coupling (Hooke's Joint) ......Page 146 7.5.2 Oldham Coupling......Page 147 7.5.3 Cushion Coupling......Page 148 8.2 Joints for Steam Pipes......Page 150 8.2.1 Joints for Cast Iron Pipes......Page 151 8.2.2 Joints for Copper Pipes......Page 152 8.3 Joints for Hydraulic Pipes......Page 153 8.4.1 Union Joint......Page 154 8.4.2 Expansion Joint......Page 156 8.5 Pipe Fittings......Page 157 8.5.1 GI Pipe Fittings......Page 158 8.5.3 PVC Pipes and Fittings......Page 159 8.6 Pipe Layout......Page 163 9.2.1 Flat Belt Pulleys......Page 165 9.2.2 V-belt Pulleys......Page 168 9.2.3 Rope Pulley......Page 170 10.2.2 Riveting......Page 173 10.4.1 Pitch......Page 174 10.5.1 Structural Joints......Page 175 10.5.2 Boiler Joints......Page 177 11.2 Welded Joints and Symbols......Page 184 11.2.1 Position of the Weld Symbols on the Drawings ......Page 185 11.2.2 Conventional Signs......Page 188 11.2.4 Position of the Arrow Line......Page 189 11.2.6 Position of the Symbol......Page 190 11.4 Edge Preparation of Welds......Page 191 11.6 Rules to be Observed while Applying Symbols ......Page 192 11.8 Examples......Page 194 12.2.1 Journal Bearings......Page 199 12.3 Rolling Contact (Anti-friction) Bearings......Page 206 12.3.1 Radial Bearings......Page 207 12.3.2 Thrust Bearings......Page 208 13.3 Roller Chains......Page 212 13.6 Design of Roller Chain Drives......Page 213 13.9 Gear Nomenclature......Page 214 13.10.1 Involute Tooth Profile......Page 215 13.10.2 Approximate Construction of Tooth Profiles......Page 216 13.11.2 Spur Gearing......Page 218 13.11.5 Bevel Gear......Page 219 13.11.7 Worm and Worm Gear (Wheel)......Page 220 14.3.1 Jig Body......Page 223 14.3.4 Bushings......Page 224 14.4.1 Channel Jig......Page 226 14.5.2 Clamps......Page 227 14.6.2 Turning Fixture......Page 228 14.6.3 Welding Fixture......Page 229 15.2.5 Upper Deviation......Page 231 15.3 Tolerances......Page 232 15.3.2 Fundamental Deviations......Page 235 15.3.3 Method of Placing Limit Dimensions (Tolerancing Individual Dimensions)......Page 248 15.4.2 Transition Fit......Page 250 15.4.3 Interference Fit......Page 251 15.5.6 Definitions......Page 255 15.5.8 Indication of Feature Controlled......Page 257 15.5.9 Standards Followed in Industry......Page 258 16.2 Surface Roughness......Page 265 16.2.7 Surface Roughness Number......Page 266 16.4 Indication of Surface Roughness......Page 268 16.4.1 Indication of Special Surface Roughness Characteristics......Page 269 16.4.3 Indications of Surface Roughness Symbols on Drawings......Page 271 17.2.1 Rear Tool Post......Page 274 17.2.2 Pump Housing......Page 275 17.2.4 Steam Stop Valve......Page 277 17.3.1 Worm Gear Housing......Page 280 17.3.2 Connector......Page 281 17.3.3 Square Tool Post......Page 282 17.3.4 Milling Fixture......Page 284 18.1 Introduction......Page 287 18.2.4 Steam Engine Connecting Rod End......Page 288 18.2.5 Marine Engine Connecting Rod End......Page 290 18.2.6 Piston......Page 293 18.2.7 Radial Engine Sub-assembly ......Page 294 18.2.9 Rotary Gear Pump......Page 296 18.2.12 Single Plate Clutch......Page 299 18.2.13 Multiplate Friction Clutch......Page 302 18.3.2 Square Tool Post......Page 307 18.3.3 Clapper Block......Page 308 18.3.4 Shapper Tool Head Slide......Page 310 18.3.6 Milling Machine Tail-Stock......Page 312 18.3.7 Revolving Centre ......Page 314 18.3.10 Swivel Machine Vice......Page 317 18.3.11 Drill Jig......Page 321 18.3.14 Four Jaw Chuck......Page 322 18.4.1 Gate Valve......Page 326 18.4.4 Non-return Valve......Page 329 18.4.7 Feed Check Valve......Page 333 18.4.8 Pressure Relief Valve......Page 337 18.4.9 Lever Safety Valve......Page 338 18.4.11 Ramsbottom Safety Valve......Page 341 18.5.1 Socket and Spigot Joint......Page 344 18.5.2 Kunckle Joint......Page 345 18.5.4 Bushed-pin Type Flanged Coupling......Page 346 18.5.5 Oldham Coupling......Page 347 18.5.6 Universal Coupling......Page 349 18.5.7 Plummer Blcok......Page 350 18.5.9 Foot-step Bearing......Page 352 18.5.10 C-clamp......Page 354 18.5.11 Crane Hook......Page 355 18.5.12 V-Belt Drive......Page 357 18.5.15 Speed Reducer......Page 358 19.1 Introduction......Page 378 19.2.1 Petrol Engine Connecting Rod......Page 379 19.2.5 Steam Engine Crosshead......Page 380 19.2.6 Automobile Gear Box......Page 385 19.3.2 Lathe Slide Rest......Page 389 19.3.2 Lateh Speed Gear Box......Page 391 19.3.6 Self-centering Vice......Page 393 19.4.1 Blow-off Cock......Page 399 19.4.5 Angle Plummer Block......Page 404 19.4.7 Speed Reducer......Page 411 20.2.1 Detail or Part Drawings......Page 412 20.2.3 Detailed Drawings and Manufacturing Methods......Page 415 20.3.1 Petrol Engine Connecting Rod......Page 416 21.3.1 Computer......Page 420 21.4 Display Technology......Page 421 21.6 Starting AutoCAD......Page 422 21.6.2 Interactive Techniques......Page 423 21.7.1 Co-ordinate System......Page 425 21.7.3 Drawing Entity-POINT......Page 426 21.7.4 Drawing Entity-LINE ......Page 427 21.7.6 Drawing Entity-POLYGON......Page 428 21.7.8 Drawing Entity-CIRCLE......Page 429 21.8 Object Selection......Page 430 21.8.1 Edit Commands......Page 431 21.8.2 Zoom Command......Page 432 21.8.4 Utility Commands......Page 433 21.9.4 Solid Modelling......Page 434 21.10 View Point......Page 435 21.11 View Ports......Page 436 21.12.1 To Draw a Cylinder ......Page 437 21.13.1 To Create Regions......Page 438 21.14 Sectional View......Page 439 21.16 Basic Dimensioning......Page 440 21.16.2 Dimensioning Methods......Page 441 21.16.4 Continuing Linear Dimensions......Page 442 21.16.5 Example for Dimensioning......Page 443 21.17 Polyline (Pline)......Page 444 21.18 (Offset)......Page 445 21.19 Elevation and Thickness......Page 446 21.21 Extrusion......Page 447 Objective Questions Answers ......Page 451 Annexure......Page 465 Index......Page 472 Mechanical Engineering Written,by,three,distinguished,authors,with,ample,academic,and,teaching,experience;,this,textbook;,meant,for,diploma,and,degree,students,of,Mechanical,Engineering,as,well,as,those,preparing,for,AMIE,examination;,incorporates,the,latest,standards.,The,new,edition,includes,the,features,of,assembly,drawings;,part,drawings,and,computer-aided,drawings,to,cater,to,the,needs,of,students,pursuing,various,courses.,The,text,of,the,new,edition,has,been,thoroughly,revised,to,include,new,concepts,and,practices,in,the,subject.,It,should,prove,an,ideal,textbook. Written by three distinguished authors with ample academic and teaching experience,this textbook,meant for diploma and degree students of Mechanical Engineering as well as those preparing for AMIE examination,incorporates the latest standards. The new edition includes the features of assembly drawings,part drawings and computer-aided drawings to cater to the needs of students pursuing various courses. The text of the new edition has been thoroughly revised to include new concepts and practices in the subject. It should prove an ideal textbook.