MoldMaking Technology

NOV 2018

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10 MoldMaking Technology —— NOVEMBER 2018 Profile Images courtesy of B A Die Mold Inc. B A Die Mold Inc. (B A Die Mold) has built molds with its patented Programmable Electric Rotating Core (PERC) System for many original equipment manufacturers, custom molders and other moldmakers. What makes the PERC System so successful for molding threaded parts? Jason Baker, design engineer: B A Die Mold developed a system that offers precision position- ing of virtually unlimited threads on any given part. It is a servo-motor-driven mold system that B A Die Mold developed for molders who use electric mold- ing machines to manufacture threaded parts. Molds with a PERC System can be installed on traditional, hydraulic molding machines as well. One of the pat- ented features of the PERC System is that the servo motor is part of the mold, which makes it possible to set it up in any type of molding machine. The PERC System works well with robotics, too. Once they see the PERC System in action, our customers really appreciate the precision and speed, B A Die Mold Inc. 3685 Prairie Lake Court Aurora, Illinois 60504 badiemold.com • Celebrates 50 years in business this year. • Was founded in 1968 by Alan Petrucci, who leads a very tight, lean team building molds in its 16,000-square-foot, modern facility. • Has an owner, Alan Petrucci, who is a founding member of the American Mold Builders Association and was named AMBA's Mold Builder of the Year in 2011. Petrucci is still actively involved with day-to-day operations as CEO, and his daughter Francine Petrucci is B A Die Mold's president and majority shareholder. • Specializes in the engineering and manufacturing of highly complex injection molds for water filtration, medical devices, appliance controls, housewares, automotive electrical components, caps and closures and threaded devices. • Is well known for its patented PERC System for unscrewing molds. For more than 10 years, this integrated cap mold built by B A Die Mold is still in production and has run nonstop other than when it stops for routine preventive main- tenance. The complex design combined two molds into one, eliminating a secondary, spin-welding operation and paying for itself in under a year. A Conversation with … B A Die Mold Inc. not to mention how perfectly it forms threaded details, especially on complex parts. Because PERC is a compact system, PERC molds typically can be run in a molding press that is smaller than what a traditional unscrewing system requires. One example that highlights how the PERC system beneƒits customers involved a project in which a medical part required a side action to pass through a threaded core. The resin was very flashy, and the position of the threaded core had to be dead-on for the side action to pass through and shutoff properly without galling. With the PERC System, we were able to accomplish this with relative ease. The customer was very happy with the multi-cavity tool we built as it func- tioned flawlessly with no flash—right from the ƒirst shot. We were conƒident from the start that the PERC System would be the answer, while others hesitated and shied away from the job. Another example is a PERC mold for a water-ƒiltration cap. The customer had a two-piece assembly for a cap that required spin-welding to join the two parts. We helped the customer by redesigning the parts so that they were molded together, eliminating that secondary operation. The design was very complex as it required A- and B-side unscrewing. We designed the mold so that the PERC System very precisely shut off the threaded core from the B side on the threaded core from the A side of the mold, forming a waterway every cycle. Our customer told us that the mold paid for itself in under a year, and ‡ˆ years later, it is still producing perfect parts nonstop, except of course when the customer performs preventive maintenance.

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