A Concise Introduction to Engineering Graphics

Transcription

1 A Concise Introduction to Engineering Graphics Fourth Edition Including Worksheet Series A Timothy J. Sexton, Professor Department of Industrial Technology Ohio University BONUS Book on CD: TECHNICAL GRAPHICS Meyers, Croft, Miller, Demel & Enders Ohio State University Technical Sketching Orthographic Projection Pictorial Drawings Sections and Conventions Dimensions and Tolerances Dimensioning for Production Fastening, Joining and Standard Parts Production Drawings Three-Dimensional Geometry Concepts 3-D Geometry Applications Graphical Presentation of Data Design Process SDC PUBLICATIONS Schroff Development Corporation

2 Table of Contents: Table of Contents:... i Table of Problems:... vi TECHNICAL GRAPHICS Table of Contents...vii Chapter Sketching Techniques & Materials... 1 Equipment:... 1 Straight Lines:... 1 Sketching Arcs and Circles:... 2 Sketching to Scale:... 3 Drafting Materials:... 3 Paper:... 3 Pencil lead:... 3 Chapter Hand Lettering... 5 Chapter Multiview Drawing... 7 The Engine of Industry:... 7 Orthographic Projection:... 7 The Six Plastic Planes of Projection: D Planes: Types of Planes: Normal Planes: Inclined Planes: Oblique Planes: Single Curved Surfaces: Line and Surfaces: Circles vs. Ellipses: Fillets and Rounds: Fillets and Rounds in Castings: Forming Fillets & Round Using Bended Metal: D Parametric Models: Intersecting Surfaces Using Fillets, Rounds, and Runouts: Rounded Shapes Intersecting Cylinders: Intersecting Planar Surfaces: Angle Blocks: Conventional Edges: rd Angle vs. 1 st Angle Projection: Chapter Isometric Drawing Why Isometric Drawing? Isometric Projection Theory: Constructing an Isometric Sketch: Isometric Drawing vs. Isometric Projection: i

3 Inclined and Oblique Surface: Isometric Circles and Arcs Approximation Method: Sketching an Isometric Circle: Isometric Elliptical Templates: Isometric Irregular Curves: Chapter Line Types Drawing Line Types: Hierarchy of Lines: Hidden Line Technique: Chapter Auxiliary Views Visualizing a Primary Auxiliary View: Type of Primary Auxiliary Views Reverse Construction: Successive Auxiliaries: Dihedral Angles: Chapter Sectional Views Sectional Views: Cutting Plane Line: Section Lining: Full Sections: Offset Sections: Half Sections: Revolved Sections: Removed Sections: Broken- out Sections: Auxiliary Sections and Viewing Planes: Aligned Sections: Unsectioned Features: Conventional Breaks: Chapter Measurement & Scale Full Size Metric Measurement: Full Size US Customary: Scale: Scales: Civil Engineering Scale: Mechanical Engineering Scales: Architectural Scales: Metric Scales: Bar Scales: Chapter Dimensioning Why Dimension? Dimensioning Line Types, Terminology, and Symbols: ii

4 Special Symbols: Units of Measure: Dimensioning Standards: Dimensioning Strategy: Unidirectional vs. Aligned: Dimensioning Techniques: Linear Dimensions: Oblique Extension Lines: Angular Dimensions: Holes and Cylindrical Features: Arcs and Radii: Spheres and Rounded Cylinder Ends: Rectangular Stock with Rounded Ends: Slotted Holes: Location Dimensions: Holes Located About a Center Point: Specifying Machining Operations: Drilling and Reaming: Counter Bore and Counter Sinks: Chamfers: Keyways and Keyseats Necks and Undercuts: Knurling: Chapter General Tolerance Introduction: What Determines the Tolerance? Specifying Tolerance: Mating Parts ANSI Inch Based System of Limits & Fits ISO System of Limits & Fits: Metric Fit Symbols: Terminology Review: Chapter Geometric Dimensioning and Tolerancing (GD&T) Introduction: Checking the size limits envelope: Standard Stock Items: Datums: Order of Datums: Datum axis: Features at RFS: Compound and Coplanar Datums: Chain Lines and Partial Datum Surfaces: Datum Target Points: Datum Target Line: Datum Target Area: Geometric Dimensioning and Tolerancing (GD&T): Feature Control Frame: Geometric Characteristic Symbols: Modifiers in a feature control frame: Angularity: Parallelism: iii

5 Perpendicularity: Straightness: Straightness of Surface Elements: Checking Surface Elements on a Cylinder: Central Axis: Geometric Tolerance Modifiers: Flatness: Flatness of a Specific Area: Circularity: Cylindricity: Profile s Basic Concepts: Profile of a Line: Floating Tolerance Zone: Profile of a Surface: Profile of a Surface on a Spherical Radius or Planar Surface: Profile of a Surface on a Conical Surface: Profile All Around: Limits of Application: Positional Tolerance: Positional Tolerance at MMC: Composite Positional Tolerance: Datums in the Second Line of a Composite Positional Tolerance: Virtual Condition: Concentricity: Coaxial Control Using Positional Tolerance: Symmetry: Projected Tolerance Zone: Runout: Circular Runout: Limited Application: Total Runout: Chapter Working Drawings Assembly Drawings: Exploded Isometric Assemblies: Flow Lines: Balloons: General Sheet Layout: Title Blocks: List of Materials: Revision Block: General Notes Area: Zone Markings: Chapter Threads Thread Terminology: Thread Profiles: Unified Thread Series: Metric Thread Series: Class of Fit: Right vs. Left Hand Threads: Multiple Threads: Thread Representation iv

6 Inch Thread Specification: Metric Thread Specification: Gage Numbers in Thread Specifications: Acme Thread Specification: National Pipe Thread Specification: Buttress Thread Specification: Major Diameter: Forming Threads: Measuring Threads Index: v

7 Table of Problems Table of Problems: Chapter 3 MULTIVIEW: Surface Identification...MVS-1A Normal Surfaces Sketching...MVN-1A Normal Surfaces Sketching...MVN-2A Normal Surfaces Sketching...MVN-3A Inclined Surfaces Sketching...MVI-1A Inclined Surfaces Sketching...MVI-2A Oblique Surfaces Sketching...MVO-1A Chapter 4 MULTIVIEW / ISOMETRIC: Normal Surfaces Sketching...ISMN-1A Normal Surfaces Sketching...ISMN-2A Normal Surfaces Sketching...ISMN-3A Normal Surfaces Sketching...ISMN-4A Inclined Surfaces Sketching...ISMI-1A Inclined Surfaces Sketching...ISMI-2A Inclined Surfaces Sketching...ISMI-3A Oblique Surfaces Sketching...ISMO-1A Curved Surfaces Sketching...ISMC-1A Curved Surfaces Sketching...ISMC-2A Curved Surfaces Sketching...ISMC-3A Curved Surfaces Sketching...ISMC-4A Fillets, Rounds, & Runouts...COVN-1A Chapter 6 AUXILIARY VIEWS: Auxiliary Views...AUX-1A Auxiliary Views...AUX-2A Chapter 8 MEASUREMENT and SCALE: Architectural Scale...SCALEARA Civil Engineering Scale...SCALECEA Mechanical Engineering Scale...SCALEMEA Metric Scale...SCALESIA Chapter 9 DIMENSIONING: Using CAD...DIM-1A Sketching...DIM-2A Sketching...DIM-3A Sketching...DIM-4A Using CAD...DIM-5A Using CAD...DIM-6A GEOMETRIC CONSTRUCTION: 2-D CAD...GC-BA 2-D CAD...GC-IA 2-D CAD...GC-AA WORKING DRAWING: 2-D CAD...WD-A1 PARAMETRIC MODEL: 3-D CAD...PARM-1A Chapter 7 SECTIONING: Full Sections Sketching...SECF-1A Full Sections...SECF-2A Full Sections Sketching...SECF-3A Full Sections Sketching...SECF-4A Half Sections Sectioning...SECH-1A Offset Sections Sketching...SECOF-1A Broken Out Sections Sketching...SECBO-1A Aligned Sections Sketching...SECAL-1A Removed Sections Sketching...SECR-1A vi