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ENGINEERING DRAWING STANDARDS MANUAL Free full pdf eBook download
Ashish talpade

ENGINEERING DRAWING STANDARDS MANUAL Free full pdf eBook download

Ashish talpade | 15-Feb-2016 |
STANDARDS MANUAL , DRAWING ELEMENTS , NOMENCLATURE , DRAFTING PRACTICES , TYPES OF DRAWINGS , NUMBERING SYSTEM FOR DRAWINGS AND SUPPORTING DOCUMENTATION , ENGINEERING ORDER , DRAWING REVISIONS , PARTS LIST AND INDEX LIST , DOCUMENTATION MANAGEMENT , DESIGN REFERENCES , Standards , SPECIFICATIONS ,

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INTRODUCTION ....................................................................................................... 1
1. DRAWING ELEMENTS .......................................................................................... 3
1.1. Drawing Sizes ................................................................................................. 3
1.2. Multisheet Drawings ........................................................................................ 3
1.3. Zoning ............................................................................................................ 4
1.4. Title Block and Revision Block ......................................................................... 4
1.5. Drawing Format .............................................................................................. 10
2. NOMENCLATURE ................................................................................................ 11
2.1. Drawing Title ................................................................................................. 11
2.2. Abbreviations ................................................................................................. 12
2.3. List of Material .............................................................................................. 14
2.3.1. Requirements on the Body of the Drawing ................................................ 14
2.3.2. Requirements in the List of Material ........................................................ 14
2.4. Notes on Drawings .......................................................................................... 15
2.4.1. Security Classification ........................................................................... 15
2.4.2. Note Location........................................................................................ 15
2.4.3. Numbering of Notes ............................................................................... 16
2.4.4. Note Examples ...................................................................................... 16
2.4.4.1. Dimension Notes ........................................................................ 16
2.4.4.2. Heat Treating Notes.................................................................... 17
2.4.4.3. Joining Method Notes (welding, brazing, etc.) ............................... 18
2.4.4.4. Plating and Coating Notes ........................................................... 18
2.4.4.5. Surface Preparation Notes ........................................................... 19
2.4.4.6. Testing and Inspection Notes ....................................................... 20
2.4.4.7. Threaded Inserts — Cleaning and Installation Notes ....................... 20
2.4.4.8. Miscellaneous Notes ................................................................... 21
2.4.4.9. Informational Notes .................................................................... 23
2.4.5. Local Character Notes ............................................................................ 23
2.4.6. General Dimensional Tolerance Notes ...................................................... 23
2.5. Specification Callouts ..................................................................................... 23
3. DRAFTING PRACTICES ....................................................................................... 25
3.1. General .......................................................................................................... 25
3.2. Lines ............................................................................................................. 25
3.2.1. Ink Lines and Plotted Lines .................................................................... 25
3.2.2. Pencil Lines .......................................................................................... 27
3.2.3. Types of Lines....................................................................................... 27
3.2.3.1. Center Lines .............................................................................. 27
3.2.3.2. Dimension Lines ........................................................................ 28
3.2.3.3. Leaders ..................................................................................... 28
3.2.3.4. Break Lines ............................................................................... 28
3.2.3.5. Phantom Lines ........................................................................... 29
3.2.3.6. Sectioning Lines ........................................................................ 29
3.2.3.7. Extension Lines ......................................................................... 30
3.2.3.8. Hidden Lines ............................................................................. 30
3.2.3.9. Stitch Lines ............................................................................... 30
3.2.3.10. Outlines or Visible Lines........................................................... 30
3.2.3.11. Datum Lines ............................................................................ 30
3.2.3.12. Cutting-Plane/Viewing-Plane Lines ............................................ 30
3.3. Lettering and Numerals ................................................................................... 31
3.3.1. Style .................................................................................................... 31
3.3.2. Heights ................................................................................................. 32
3.4. Scale ............................................................................................................. 32
3.5. Positioning the Part on the Drawing .................................................................. 33
3.5.1. Picturization ......................................................................................... 33
3.5.2. Sections ................................................................................................34
3.5.3. Views ................................................................................................... 36
3.5.4. Details .................................................................................................. 37
3.5.5. Identification of Sections, Views, and Details ........................................... 37
3.5.6. Locating Sections, Views, and Details ...................................................... 38
4. TYPES OF DRAWINGS ......................................................................................... 39
4.1. Altered or Selected Vendor Part Drawing .......................................................... 39
4.2. Assembly Drawing .......................................................................................... 40
4.3. Detail Drawing ............................................................................................... 41
4.4. Drawing Tree ................................................................................................. 42
4.5. Electrical/Electronic Drawings ......................................................................... 43
4.5.1. Electrical and Electronic Symbols............................................................ 43
4.5.2. Electrical and Electronic Diagrams .......................................................... 43
4.6. Inseparable Assembly Drawing ......................................................................... 44
4.7. Installation Assembly Drawing ......................................................................... 45
4.8. Interface Control Drawing ............................................................................... 46
4.9. Matched-Set Drawing ...................................................................................... 48
4.10. Mechanical Schematic .................................................................................... 49
4.11. Modification Drawing .................................................................................... 51
4.12. Outline Drawing ........................................................................................... 51
4.13. Source Control Drawing ................................................................................. 53
4.14. Specification Control Drawing ........................................................................ 54
4.15. Standard Part Drawing ................................................................................... 56
4.16. Tabulated Drawing ........................................................................................ 56
4.17. Tooling Drawing ........................................................................................... 57
4.18. Composite Material Drawing .......................................................................... 58
5. NUMBERING SYSTEM FOR DRAWINGS AND SUPPORTING DOCUMENTATION .60
5.1. Part Numbering .............................................................................................. 61
5.2. Find or Item Numbering................................................................................... 62
5.3. Order of Precedence of Specifications and Standards .......................................... 62
5.3.1. Group I ................................................................................................. 62
5.3.2. Group II ............................................................................................... 62
5.3.3. Group III .............................................................................................. 63
5.3.4. Group IV .............................................................................................. 63
5.3.5. Group V................................................................................................ 63
6. ENGINEERING ORDER ........................................................................................ 64
6.1. General Requirements...................................................................................... 64
6.2. Format Sample ................................................................................................ 64
7. DRAWING REVISIONS ......................................................................................... 68
7.1. Revision Methods ........................................................................................... 68
7.2. Revision Identification .................................................................................... 68
7.3. Revision of Multisheet Drawings ...................................................................... 68
7.4. Revision Recording ......................................................................................... 68
7.5. Redrawn or Replaced Drawings ........................................................................ 70
8. PARTS LIST AND INDEX LIST ............................................................................. 71
8.1. Definitions ..................................................................................................... 71
8.2. Requirements.................................................................................................. 71
8.2.1. List Preparation ..................................................................................... 71
8.2.2. List Formats .......................................................................................... 72
8.2.3. Revision Identification ........................................................................... 72
8.2.4. Deleting Items ....................................................................................... 72
8.2.5. Adding Items ......................................................................................... 72
8.3. Cover Sheet.................................................................................................... 72
8.3.1. Format .................................................................................................. 72
8.3.2. Entries..................................................................................................72
8.4. Parts List Continuation Sheet ........................................................................... 75
8.4.1. Format .................................................................................................. 75
8.4.2. Entries.................................................................................................. 75
8.5. Index List Continuation Sheet .......................................................................... 77
8.5.1. Format .................................................................................................. 77
8.5.2. Entries.................................................................................................. 77
8.6. Find or Item Number System of Identification .................................................... 79
8.6.1. Definition ............................................................................................. 79
8.6.2. Application and Limitation ..................................................................... 79
8.6.3. Drawing Requirements ........................................................................... 80
8.7. List of Material .............................................................................................. 81
8.7.1. Format .................................................................................................. 81
8.7.2. Entries.................................................................................................. 81
9. DOCUMENTATION MANAGEMENT ..................................................................... 82
9.1. Typical Drawing Flow for Flight Projects .......................................................... 82
9.2. Archiving....................................................................................................... 83
9.3. Computer-Aided Design Drawings .................................................................... 83
9.3.1. Presentation of Computer-Generated Data ................................................. 83
9.3.2. Developing and Using Computer-Generated Drawings ................................ 84
9.3.3. Specification Data ................................................................................. 84
10. DESIGN REFERENCES, STANDARDS, AND SPECIFICATIONS ........................... 85
10.1. Dimensioning and Tolerancing ........................................................................ 85
10.1.1. Dimensioning and Tolerancing Practices ................................................. 85
10.1.2. Statements on Dimensioning .................................................................. 85
10.2. Metric Dimensioning ..................................................................................... 86
10.2.1. SI Units and Symbols ........................................................................... 86
10.2.2. Unit Conversions ................................................................................. 89
10.2.2.1. Conversion of Dimensions ......................................................... 89
10.2.2.2. Unit Rounding.......................................................................... 89
10.3. Design References ......................................................................................... 92
10.4. Control of Surface Roughness ......................................................................... 93
10.4.1. Surface Texture ................................................................................... 93
10.4.2. Surface Texture Symbols ...................................................................... 93
10.4.3. Surface Texture Standards ..................................................................... 93
10.5. Thread Specifications .................................................................................... 93
10.6. Welding—Fusion and Resistance ..................................................................... 95
10.6.1. General ............................................................................................... 95
10.6.2. Basic Weld Symbols and Their Location Significance .............................. 95
10.7. Outgassing of Spacecraft Materials ................................................................. 95
10.8. Standards and Specifications Index ................................................................. 96
10.8.1. National Bureau of Standards ................................................................ 96
10.8.2. Federal ............................................................................................... 96
10.8.3. Industrial ............................................................................................ 97
10.8.4. Military .............................................................................................. 98
10.8.5. NASA ............................................................................................... 100
10.9. Standards and Specifications Numerical Index ................................................ 101

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