1. PROCESS PLANNING

 

• Process planning is the selection of operation and parameters required to manufacture a part.

 

• A process plan is a list of operations required to manufacture a part.

 

• This technique is quite inexact, and never perfect.

 

• Some strategies that can be used to do process planning are,

- Technology driven features

- Most significant feature first

 

• In general a process plan is put together in pieces, but at all times we will be trying to convert features on the design to operations on the process plan.

 

• Many of the parameters that effect the process planning decisions are related to a part, and to a process being considered.

- lead times

- processes available

- tolerances

- feature geometry

- standard features

- surface finish/roughness

- geometry complexity

- material types

- material properties

- part shape

- largest dimension

- section thickness

- length to width ratio

- hole diameters

- corner radii

- quality control

- quantity produced

- economic batch size

- capital costs

- tooling costs

- lead time

- material waste

- production rate

- tool life

- environmental impact

 

 

 

1.1 TECHNOLOGY DRIVEN FEATURES

1.2 MOST SIGNIFICANT FEATURE FIRST

1.3 DATABASE METHODS

1.4 MANUFACTURING VOLUMES

1.5 STANDARD PARTS

1.6 PRACTICE PROBLEMS

1.7 REFERENCES

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