Assembly Drawing

Chapter 12 Assembly Drawings

Topics Exercises

Copyright ©2007 by K. Plantenberg Restricted use only

Assembly : Topics
Summary 12.1) Definitions 12.2) Views Used in Assembly Drawings 12.3) Things to Include/Not Include 12.4) Standard Parts - Specifications for General Fasteners - Specifications for Bolts and Nuts (Advanced Topic)

Copyright ©2007 by K. Plantenberg Restricted use only

Assembly: Exercises
Exercise 12-1: Section lines in assemblies Exercise 12-2: Working drawing package

Copyright ©2007 by K. Plantenberg Restricted use only

Assembly Drawings

Summary

Copyright ©2007 by K. Plantenberg Restricted use only

Summary
What will we learn in Chapter 12?
→ How to create an assembly drawing. → How to create a standard parts sheet.

Key Points.
→ Assembly drawings show how individual parts fit together to make a machine. → A standard parts sheet contains purchased items.
Copyright ©2007 by K. Plantenberg Restricted use only

Assembly Drawings

12.1) Definitions

Copyright ©2007 by K. Plantenberg Restricted use only

Assembly Drawing
What is an assembly drawing and why do we need them?
An assembly drawing is a drawing of an entire machine or system with all of its components located and identified. We need to know how to put the machine together.

Copyright ©2007 by K. Plantenberg Restricted use only

Parts List (Bill of Materials)

Part#’s

Subassembly Drawing
Subassembly: Two or more parts that form a portion of an assembly. Can you think of some examples of subassemblies?
→ A car differential → A motorbike engine → A compressor in an AC

Copyright ©2007 by K. Plantenberg Restricted use only

Definitions
Does an assembly drawing normally show size?
No. Its job is to locate parts.

How do we show the size of an individual part?
A detail drawing is a drawing of an individual part, which includes an orthographic projection and dimensions.
Copyright ©2007 by K. Plantenberg Restricted use only