Blueprint Reading for Machine Trades

UNIT 1

Dictionary of Terms. Standard Abbreviations. Alphabet of Lines.

UNIT 2

Dimensioning Systems. Blueprints vs. Whiteprints. Engineering Drawings. Title Blocks. Drawing Notes. Single-View Drawings. Detail Drawings. Center Lines. Diameters and RADII. Break Lines. Typical Dimensions. Tolerances. Bolt Circles. Maximum Material Condition and Least Material Condition. Allowance. Arcs and Circles.

UNIT 3

Orthographic Projection. Third-Angle Projection. First-Angle Projection. Isometric Sketching.

UNIT 4

Reading Multiview Drawings. Precedence of Lines. Accumulated Tolerances. Dimensioning Methods.

UNIT 5

Orthographic Projection of Inclined Planes. Foreshortened Views. Angular Dimensions. Included Angle. Slots and Grooves.

UNIT 6

Reference Dimensions. Blind Holes. Chamfers. Keyseats and Keyways. Counterbores and Countersinks. Angular Hole Locations. Castings. Finish Symbols. Finish Allowance. Fillets and Rounds. Clearance Holes. Half-Views. Surface Roughness. Roughness Average (Ra). Surface Roughness Chart. Surface Texture Symbol.

UNIT 7

Bosses and Pads. Slotted Holes. Casting and Dimensions. Tapers. Standard Tapers. Necks. Limits. Single Limits. Steel Processing. Steel Specifications. General Properties of Alloy Steels. Steel Carbon Content. Partial Enlarged Views. Stock Sizes. Knurling. Heat-Treat Notes.

UNIT 8

Sectional Views. Full Sections and Half-Sections. Symbology. Annular Grooves. Wall Thickness. Cast Iron. Spotfacing. Revolved Sections. Broken-Out Sections. Ribs in Section. Section Line Symbols. Rotated Features. Removed Sections. Offset Sections.

UNIT 9

Threaded Hole Specifications. Unified Thread Form. Thread Series. Classes of Fit. Threaded Hole Illustrations. Unified Thread Table. Numbered and Lettered Drills. Thread Calculations. Constant Pitch Series. Line Omission. Arrowless Dimensioning. External Threads. Thread Forms. Tabulated Dimensions. Multiple Threads. Pipe Threads. Dryseal Pipe Threads. Hex Bar Stock.

UNIT 10

Typical Dimensions. Right Triangles. Repetitive Features. Detail Drawings. Drawing Revisions. Conical Tapers. Rockwell Hardness Test. Thread Specification Placement. Patent Drawings.

UNIT 11

Metric Drawings. Dimensioning Symbols. Metric Threads. Metric Thread Table. Coordinate Dimensioning. Dual Dimensioning. Dimension Origin.

UNIT 12

Auxiliary Views. Inclined Planes. Oblique Planes. Bend Allowance.

UNIT 13

Geometric Tolerancing. Feature Control Frame. Material Condition Symbols. Projected Tolerance Zone. Basic Dimension Symbol. Datum Feature Symbol. Combined Symbols. Composite Frames. Datum Target Symbol. All Around Symbol. Form Tolerances. Datums and the Datum Reference System. Orientation Tolerances.

UNIT 14

Location Tolerances. Runout Tolerances. Projected Tolerance Zone. Profile Tolerances. Geometric Characteristic Symbols. Former Practices. Comparison of Symbols.

UNIT 15

Spur Gear Terminology. Spur Gear Formulas. Spur Gears. Splines.

UNIT 16

Weldments. Welding Symbols. Resistance Welds.

MATH APPENDIX.

INDEX.

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