AIDT STUDENT TRAINING MANUAL TABLE OF CONTENTS I. BLUEPRINT READING .........................................................................................1 A. ALPHABET OF LINES ................................................................................1 Figure 1-1 Alphabet of Lines .......................................................................2 Figure 1-2 Examples of Line Types ............................................................3 1. Object Lines .....................................................................................3 Figure 1-3 Object Line......................................................................3 2. Hidden Lines ....................................................................................4 Figure 1-4 Hidden Lines ...................................................................4 3. Center Lines .....................................................................................4 Figure 1-5 Center Line .....................................................................4 4. Phantom Lines .................................................................................5 Figure 1-6 Phantom Lines ................................................................5 5. Dimension Lines...............................................................................5 Figure 1-7 Dimension Lines .............................................................5 6. Extension Lines ................................................................................6 Figure 1-8 Extension Lines ..............................................................6 7. Leaders ............................................................................................6 Figure 1-9 Leaders ...........................................................................6 8. Break Lines ......................................................................................7 Figure 1-10 Long-break Line ............................................................7 Figure 1-11 Round, Solid, Hollow Cross Section .............................7 9. Section Lines....................................................................................8 Figure 1-12 Section Lines ................................................................8 Figure 1-13 Common Manufacturing Materials ................................9 10. Cutting Plane Lines ..........................................................................9 Figure 1-14 Cutting Plane Lines.....................................................10 Alphabet of Lines Exercise............................................................. 11 B. SYMBOLS AND TERMINOLOGY .............................................................12 1. Thread Representation ..................................................................12 Figure 1-15 Three Types of Thread Representations ...................13 Figure 1-16 Threaded Part ............................................................14 Figure 1-17 Thread Specifications ................................................15 Figure 1-18 Left-Hand Thread Notations ......................................15 2. Finish Symbols ...............................................................................15 Figure 1-19 Finish Symbols ..........................................................16 3. Fillets and Rounds .........................................................................18 Figure 1-20 Fillets and Rounds .....................................................18 4. Machine Slots.................................................................................19 AIDT- Blueprint Reading - 10/22/2009 i Figure 1-21 Machine Slots ............................................................19 Figure 1-22 Terms .........................................................................20 Figure 1-23 Terms .........................................................................20 Figure 1-24 Terms .........................................................................20 Figure 1-25 Terms .........................................................................21 Figure 1-26 Terms .........................................................................21 5. Title Blocks .....................................................................................22 Figure 1-27 Assembly Drawing .....................................................24 6. Bill of Materials ...............................................................................25 Figure 1-28 Bill of Materials ..........................................................25 7. Dimension Types ............................................................................26 Figure 1-29 Dimension Types .......................................................26 Figure 1-30 Fractional Dimensions ...............................................27 8. Tolerance Blocks ............................................................................28 Figure 1-31 Tolerance Blocks .......................................................28 C. VISUALIZATION .......................................................................................28 1. Orthographic Projection .................................................................28 2. View Arrangement ..........................................................................29 Figure 1-32 First-Angle Projection ................................................29 Figure 1-33 Third-Angle Projection ...............................................30 Figure 1-34 Third-Angle Projection of Part in Glass Box ..............30 Figure 1-35 Box Flattened Into a Single Plane .............................31 Figure 1-36 Detail Drawing ...........................................................33 Figure 1-37 Cylindrical Object .......................................................33 Figure 1-38 Cylindrical Object .......................................................34 Figure 1-39 Different Views ...........................................................34 Figure 1-40 Different Views ...........................................................35 Figure 1-41 Different Views ...........................................................35 Figure 1-42 Top View ....................................................................36 D. SECTIONAL AND AUXILIARY VIEWS .....................................................36 1. Sectional Views ..............................................................................36 Figure 1-43 Sectional Views .........................................................37 Figure 1-44 Cutting Plane Lines....................................................37 Figure 1-45 Multiple Views ............................................................38 2. Auxiliary views ................................................................................39 Figure 1-46 Regular Views Do Not Show Surface A .....................39 Figure 1-47 Auxiliary View Shows True Features of A ..................40 3. Multi-View Review ..........................................................................40 Exercise 1 Views and Title Block ..............................................................42 E. GLOSSARY ..............................................................................................44 Figure 1-48 ACME Screw Threads ..........................................................44 Figure 1-49 Allen Screw ...........................................................................44 ii AIDT- Blueprint Reading - 10/22/2009 Figure 1-50 Allowances ...........................................................................45 Figure 1-51 Anti-Friction Bearing .............................................................46 Figure 1-52 Boss......................................................................................47 Figure 1-53 Cam ......................................................................................48 Figure 1-54 Chamfer ................................................................................49 Figure 1-55 Counterbore..........................................................................50 Figure 1-56 Countersink ..........................................................................51 Figure 1-57 Dowel....................................................................................52 Figure 1-58 Fillet Radius ..........................................................................53 Figure 1-59 Flange...................................................................................54 Figure 1-60 Keys......................................................................................56 Figure 1-61 Keyway .................................................................................56 Figure 1-62 Knurl .....................................................................................57 Figure 1-63 Lug........................................................................................57 Figure 1-64 Machine Pins ........................................................................58 Figure 1-65 Pinion....................................................................................60 Figure 1-66 Rack .....................................................................................61 Figure 1-67 Rib ........................................................................................62 Figure 1-68 Rivets....................................................................................62 Figure 1-69 Spline....................................................................................64