Reiner Westhoff

Reiner studied plastics engineering until 1989. He was Production Manager of the vacuum brazing and heat treatment shop at Unibras AG in Switzerland from 1989-1992. In 1992, he went to work for Eurobras GmbH in southern Germany and was responsible for Technical Sales for vacuum brazing. In 1994, he became Engineering Manager for supplying conformal cooled mold inserts at INNOVA Engineering GmbH, Menden, Germany. And in 1997, he was promoted to President of Innova Engineering GmbH. From 2003 to the present, he has been Shareholder and President of Contura MTC GmbH, Menden, Germany specializing in conformal cooling.

Speaker Session See Full Agenda

May 16, 2017

10:15 AM

Room: Calhoun Salon

Conformal Cooling for Injection Molds Based on Bonding Technologies

The demand of the injection molding market for faster cycles and improved CpK values, is and has been steadily growing in the past 25 years. This demand is not only the result of significantly increased cost pressure on injection molded products in nearly all markets, but also due to significantly more complex part shapes with a high level of functional integration.

In this complex market, the gun drilling of waterlines or inserting waterlines with O-ring sealing in order to make an injection mold a more perfect heat exchanger, is very limited. Standard mold materials, on average, show poor heat conductivity and conformal waterlines are needed to meet the customer expectations for increased mold productivity.

This presentation will show the physical basis of conformal waterlines, their development based on thermodynamics, and fluid dynamics and will show practical examples of small and very large molds with conformal cooling. The building envelope for mold inserts based on bonding technologies is growing steadily, so that currently conformal cooled insert sizes of 32 inches by 16 inches by 8 inches are part of daily business.

Practical examples from automotive, electrical market, packaging, medical and consumable goods market segments will demonstrate how successfully this technology has performed over the past 25 years. This technology is a proven solution for today's injection molding business. A financial analysis will demonstrate that ROIs for conformal cooled inserts will easily achieve less than one year and thus make conformal cooling a no brainer when it comes to medium and high production volumes.