Introduction to Engineering Reading Working Drawings

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Introduction to EngineeringReading Working
Drawings

• Agenda
• Introduction to reading and developing a basic
  set of working drawings

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Mechanical Working Drawings

• Working drawings are the complete set of drawings
  specifying the manufacture and assembly of a
  product.
• Generally consists of multiple drawings, on
  multiple sheets.
• May contain written instructions called
  specifications.

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Contents of a Set of Working Drawings

• 1. Detail drawings of each nonstandard part.
  Usually one part per sheet.
• 2. An assembly drawing (or subassembly drawings)
  showing how the parts fit together.
• 3. A bill of materials (BOM). This is
  essentially a parts list. It is often with the
  assembly drawing.
• 4. A title block on each sheet.

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Reading Working Drawings

• Our first goal is to learn how to read a set of
  working drawings.
• Example simple fingernail clipper

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Example 1 - Assembly Drawing
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Full Section View
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Detailed Part Drawing Rivet
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Detailed Part Drawing Bottom Clipper
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Example 2 - Butterfly Valve
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Individual Part Drawing
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In-Class Exercise

• Teams answer questions on Worksheet 1

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Assignment

• DWG 9 Working Drawing Worksheet