Development of the Overmolding Instrument Panel

Kong Byungseok

doi:10.4271/2013-01-0018

We developed the hard IP (Instrument Panel) that is integrally over molded with a soft layer (TPO, Thermo Plastic Olefin) for the soft feeling and cost reduction. And also we produced the cost-effective PAB(Passenger-side Airbag) door system that had an in-mold tearseam and avoided competitors' patents simultaneously.

The development procedure of this technology is;

①
Material for overmolding
②
Design optimization
③
Solving tool challenges.

The reduction of process through integrally molding with soft material helped to accomplish a soft feeling on the IP and cost reduction at the same time. The deployment, head impact and heat aging tests were conducted and 5 patents were applied such as the optimization of the mold structure and injection condition.

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Development of the Overmolding Instrument Panel 2013-01-0018

SAE MOBILUS