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Success Story

Moldflow Analysis Validates GeorgeKo’s, Tetra’s Optimization Solution

Moldflow Analysis Validates GeorgeKo’s, Tetra’s Optimization Solution

Customer challenge

When GeorgeKo Industries’ client decided to switch its ice tote manufacturing process from rotational to injection molding (resulting in a $52,000 annual savings in manufacturing costs), GeorgeKo’s client was hedging its bet on the ability to mold the parts defect free. As such, GeorgeKo guaranteed its client a finished product that would meet the client’s high quality standards. But after the initial production run of 500 pieces, the tote’s side walls began warping inward as much as a quarter of an inch on either side, which created problems in the end use of the product. This cost Georgeko over $5,000 in scrap and lost production time.

Project goals

Before initiating a proposed cooling solution to solve warpage in its client’s plastic polyethylene ice tote, injection molder GeorgeKo and mold designer Tetra Tool, both based in Erie, PA, turned to Beaumont Technologies, Inc. (Beaumont), to benchmark the warp conditions using Autodesk's Moldflow mold filling and cooling simulation analysis. “Together, Tetra Tool and I both knew we had problems with cooling in the corners,” began Matt Koket, president of GeorgeKo. “The core side of the mold was filled with cooling baffles, but the problem was that the existing baffles were too far away from the corners. We realized that the side walls of the part were cooling much faster than the corners.”

Solution

As Expert Certified Moldflow consultants, Beaumont’s engineers are qualified to perform numerous mold flow analyses, including cooling optimization. After examining the ice tote’s mold and cooling system, Beaumont was able to verify that GeorgeKo’s and Tetra’s idea of adding a a separate 4-baffle cooling circuit — with one baffle each directed to a different corner of the mold — would solve the warping problems. In addition, Beaumont also pointed out that the temperature rise through the existing circuits was too high, thus contributing further to the poor heat transfer and resulting part warp. “My client is the leader in its industry,” said Koket. “When my client is putting out this product, they want it to look the best. Together, Beaumont, GeorgeKo, and Tetra were able to deliver solutions to meet the goals of my client. They were very pleased and impressed with Beaumont’s work; it was very professional and very in-depth.”

Business outcome

As predicted, after the mold was modified with the additional cooling the warpage was solved. GeorgeKo’s client’s satisfaction with the final product, as well as the accuracy of Beaumont’s prediction results have convinced GeorgeKo’s client to begin the process of switching many of its manufacturing processes from rotational to injection molding. Ultimately, this manufacturing change will save GeorgeKo’s client additional molding costs on current and future projects. SOLUTIONS: • Run Moldflow cooling analysis to benchmark existing conditions • Optimize cooling by adding baffles in the corners BENEFITS/SAVINGS: • Corrected warpage issued • Saved $52,000 annually by switching from rotational to injection molding • Avoided purchasing a $50,000 redesigned mold • No longer need post-molding cooling fixture, thus speeding up production time

Conclusion

The President of GeorgeKo mentioned that “After we drew up a mold design change [proposal], my client was not convinced right away. They wanted to see scientific data instead of a hypothetical solution before making the changes to the mold. Having worked with Beaumont in the past, I knew they had the skills necessary to benchmark the existing conditions and offer design ideas to resolve the warp issue.” This engagement was unique because it brought three different companies together to come up with a solution using Autodesk Moldflow Analysis which then set the precedence of how to address these problems going forward and the tools that can be used to do so. It shows how one solution can have a positive ripple effect by combining expertise and software.

Project summary

    Duration & delivery

  • 30
  • 2020-02-02

    Autodesk solutions

  • Moldflow Insight

    Services provided

  • Simulation

    Customer industry

  • Design & Manufacturing
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