Len Graham, Business Unit Leader, Rexam Mold Manufacturing, discusses the motivation behind the Buffalo Grove, Ill., company's decision to build a Mega Cell automated mold manufacturing system. Graham offers a detailed walk-through of the company's Mega Cell, which began operation in March 2013.
Manufacturing molds used to produce plastic parts with features that can be too small to be seen with the naked eye or measured with standard devices is challenging. That's why moldmakers that perform this work are specialists in the nuances of designing and building micromolds.
Machining molds typically involves creating complex contours and fine surface finishes. Molds are high-value items usually produced in single-digit volumes, making gradual process development and scrapping parts a costly exercise. Moldmakers' customers generally want to get their products to market as fast as possible, so lead times can be short and inflexible. Finally, overseas competition puts added pressure on U.S. shops. Moldmakers are facing the challenges with a combination of technology and teamwork, and CAD/CAM software is a key competitive tool.