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Design for Assembly

Cheil Industries Inc.

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8/8/2019 Plastic Design - Sumsung-Design Guide for Assembly of Injection Molded Plastic Parts

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Design Guide ForAssembly of Injection Molded Plastic Parts

R&D, Application Development Center Last Updated SEP 15 1999Cheil Industries Inc. 3

Press Fit AssemblyPress Fit Assembly

Simplest means of assembling plastic parts- use Elastic or spring like characteristics of plastics

hub

shaft

8/8/2019 Plastic Design - Sumsung-Design Guide for Assembly of Injection Molded Plastic Parts

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Design Guide ForAssembly of Injection Molded Plastic Parts

R&D, Application Development Center Last Updated SEP 15 1999Cheil Industries Inc. 4

Press Fit AssemblyPress Fit Assembly

Materials consideration

0.0 1.0 2.0 3.0 4.0 5.0

Tensile strain (%)

Tensile

stress

X

Rigidbrittle

polymer

Designstrain

may be

Manufacturingrelated

tolerance

Ductilepolymer

Large latitudefor interference