1. Topics for Today QUIZ Tomorrow – Topics?
Advanced Section of ENGR H192 For Winter Quarter
Sectioning of Revolved Solids & Assembly Drawings
Wednesday/Thursday – Lab #5
Material Joining & Beam Bending
Have You Done The Reading???
Lecture 14

2. Sectioning: Solid Revolutions & Assembly Drawings
Tips for sectioning solid revolutions
What is an assembly drawing
How to section multiple parts in one drawing
What parts not to section
Lecture 14

3. Tips For Sectioning Solid Revolutions
Ribs, webs and other thin features are normally not sectioned
Align (rotate into true size & shape):
Ribs
Bolt holes
Lugs
Spokes
Lecture 14

4. Assembly Drawing 1 3 Shows how multiple parts fit together
Orthographic
Pictorial (1)
Exploded (2)
Bill of Materials (3) 2
Lecture 14

5. Orthographic Sectioned Assembly
- Note cross-hatching style of adjacent parts
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6. Conventions for Standard Parts
Not Sectioned – show all exterior features for:
Shafts
Bearings, roller or ball
Gear Teeth
Threaded Fasteners, Nuts and Bolts
Rivets
Ribs, Spokes and Lugs
Washers
Keys and Pins
Lecture 14

7. Example Sectioned Assembly
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8. Broken Out Assembly With B.O.M.
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9. Assignments Dwg 27 – T49 Dwg 28 – B21 Complete section views
Due at end of today’s lecture
Dwg 28 – B21
Sectioned Assembly
Due at beginning of next lecture
Lecture 14