Page 439 - Subyek Computer Aided Design - [David Planchard] Engineering Design with SOLIDWORKS

Engineering Design with SOLIDWORKS® 2018 Extrude and Revolve Features

In ''Designing With Plastic - The

Fundamentals," Ticona lists three

design goals for creating injection

molded parts:

Goal 1: Maximize Functionality

Mold bases are costly. Design
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functionality into the part. A single C)

a

plastic chassis replaces several sheet

metal components.

Reduce assembly time and part

weight whenever it is appropriate.

Sheet Metal Injection Molded

Assembly Thermoplastic

Goal 2: Optimize Material

Selection

For material selection, consider the following elements: part functionality, operating

environment, cost/price constraint and any special cosmetic requirements.

Several materials should be selected with a developed list of advantages and

disadvantages for review.

For maximum product performance at a competitive cost in this project, use Celanese®

(Nylon 6/6) (PIA 6/6), where:

• Celanese® is the registered trademark name.

• Nylon 6/6 is the common plastic name.

• PIA 6/6 (Polyhexamethyleneadipamide) is the chemical name.

Goal 3: Minimize Material Use

Optimize part wall thickness for cost and

performance.

0

The minimum volume of plastic that 0

satisfies the structural, functional,

0
appearance and molding requirements of the

application is usually the best choice. 0

Machined Injected Molded

Valve Body Valve Body

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