Plastics Technology

FEB 2018

Plastics Technology - Dedicated to improving Plastics Processing.

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T E C H N O L O G Y A N D I N D U S T R Y N E W S FLOWCON plus » Truly automatic water flow control » Set temperature or flow by zone in the mold » Eliminate defects and achieve ultimate process control and traceability » Hassle-free setup, easy to use interface, what we call "set it and forget it" technology Your Pathway to Where it all comes together! NPE 2018 / Booth W3742 Be Our Guest with a FREE Expo Pass! www.npe.org Promo Code: 4014 Simulation software provider Sigma Engineering (U.S. office in Schaumburg, Ill.) introduced at last fall's Fakuma show in Germany a new tool said to "find out the optimum design and production conditions even before the mold is built." New Sigmasoft Autonomous Optimi- zation "finds automatically the best process setup to meet a specific demand," accord- ing to the company. Part of new Sigmasoft release v5.2, Autonomous Optimization works with a new "virtual DOE (design of experiments) functionality. The molder can ask for a particular result and the software will automatically find the best production setup to meet this demand. For example, if a new job demands tight dimensional toler- ances, it is possible to ask the software to minimize part deformation, and the virtual machine "will set up itself." This eliminates the urgent pressure to identify the process- ing window for a new mold after it is built and delivered, without taking time to optimize factors such as energy consumption or cycle time. In the case of one early adopter of Autonomous Opti- mization, a thick-walled base for a rolling office chair had to be produced in a cycle time below 60 sec. The mold- maker identified the parameters he could vary in the mold to achieve the requested cycle time—mold material, layout and diameter of cooling channels, a conformal cooling concept, and high-conductivity pins. All the possible combinations of these variables gave a total of 40,000 different mold configura- tions. (Alternative cooling layouts evaluated by the software are pictured here.) The Autonomous Optimization simulation tool evaluated these possible scenarios to find the ones that produced a cycle time under 60 sec. Among those possible design combina- tions, it was then possible to filter the ones with lower cost. That eliminated conformal cooling in this case, while high-conductivity pins and water channels of a specified diameter were found to meet the objectives. 847-558-5600 • 3dsigma.com Mold Simulation Now Optimizes Processing

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