Autodesk University
Industry talk    SIM20765
Achieving Accurate Part Shrinkage Data with Moldflow Insight
Jaykant Desai
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, Justin Courter
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Description

The success of a new product launch relies heavily on the ability of molding thermoplastic parts within specified tolerances and successfully assembling them into a functional product. Building a mold with the correct mold-shrinkage values is crucial for a given plastic material. Currently, a toolmaker guesses the shrinkage value from the range published by a material supplier before cutting steel. Thus, choosing one value at the mid-point of the range results in a part with vastly different shrinkage values in the flow, cross-flow, and transverse directions. Subsequently, many compromises may have to be made in order to qualify the part and approve the tool before routine production. We have been working with Moldflow software to improve and fine-tune the material testing and plastic-part simulation in order to predict accurate shrinkage values to eliminate the guesswork and make more-educated decisions before ordering tools. This session features Moldflow Insight and Moldflow.

Key Learnings

  • Discover the importance of volumetric shrinkage in mold building
  • Discover that the plastic industry has been facing a dilemma of cutting steel with published shrinkage values
  • Discover the limitations in the current Moldflow software in predicting accurate shrinkage
  • See the work done to eliminate this dilemma and predict accurate part shrinkage by re-characterizing a material

Speakers

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Jaykant Desai has been with Schneider Electric (formerly Square D Company) in Raleigh, North Carolina, for the last 17 years. After obtaining his master’s degree in plastic engineering from University of Massachusetts Lowell, he joined Schneider Electric. Currently, he has been working with the company as a senior staff engineer. He has been using the Simulation software since he joined the company, and contributing toward the goal of molding quality parts at the first attempt. Desai has also been actively working with Moldflow software in order to improve the software capabilities.
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Justin Courter is a Premium Support Specialist for Autodesk® Simulation® products, with a focus on Moldflow®, which he's used for over 10 years. In addition to his experience, Justin has technical certifications in both Simulation Moldflow and Simulation CFD products. His current role includes working with Enterprise Priority customers for Autodesk, helping them deploy updates, drive improvements in training and certification, reduce reactive support volume, and deliver on large initiatives that will benefit both the customer's strategic goals and the partnership they have with Autodesk. Justin completed his Bachelors of Science degree in Plastic Engineering in 2007 at Penn State. Justin has been a member of the Society of Plastics Engineers (SPE) for eight years and has presented published work at the SPE Annual Technical Conference (ANTEC_) in the field of stress-induced chemical resistance of polymer materials. He has also presented at Autodesk University in the past.
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