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Key Learning

Key Learning

  • Discover effective practices for obtaining more accurate simulation results on rapid prototyped inserts
  • Discover benefits of rapid prototyped inserts in the injection molding industry
  • Identify pros and cons of parts produced via rapid prototyped inserts, including shrinkage, warpage, and thermal gradient
  • Learn how to use Simulation software to evaluate the structural performance of rapid prototyped inserts

Materials

Materials

Description

Description

Rapid prototyping is increasingly being used in the production of injection molding inserts. This technology enables for much lower lead times in prototype and low-volume production. However, the thermal and structural properties of prototyped inserts are different than those of conventional machined inserts. The focus of this class is to use Simulation Moldflow Insight software to evaluate the thermal and mechanical behavior of rapid prototyped injection molding inserts. We will look at 3 sets of inserts that were analyzed using different manufacturing techniques and materials, which included selective laser sintered (SLS) bronze, PolyJet ABS-like material, and conventional machined stainless steel. Molding trials were performed on the inserts, as were computer simulations. The experimental and simulated results were compared for the thermal gradient, structural performance, part warpage, and part shrinkage.

Target Audience

Target Audience

Injection molding professionals interested in the Moldflow thermal analysis capabilities and benefits of rapid prototyping

Speakers

Speakers

Gabriel Mendible

Gabriel Mendible has his materials engineering degree from Sim—n Bol'var University and his MSc in plastics engineering from the University of Massachusetts Lowell. His interests include part and mold design for injection molding using CAD and manufacturing technology, as well as process monitoring and control. He worked with simulation software for his undergraduate thesis and his graduate studies at UMass Lowell. Currently he is a doctoral student at UMass Lowell working under the advisement of Dr. Stephen P. Johnston doing research focused on injection molding simulation. He also works as a teaching assistant teaching processing laboratories and mold design courses. Gabriel_Mendible@student.uml.edu

Stephen Johnston

Prof. Stephen Johnston has his B.S. in Plastics Engineering Tech from Penn State Behrend and his M.S. and Ph.D. in Plastics Engineering from UMass Lowell. His industrial experience includes work at Moldflow Corp. (prior to acquisition by Autodesk), where he provided technical support and quality assurance testing. He also worked at Bausch & Lomb Inc. doing process validation and testing. Currently Prof. Johnston teaches classes and industrial seminars on Plastic Product Design and Injection Mold Design. Dr. Johnston's research interests include part design and mold design utilizing computer-aided engineering and manufacturing technology. He also works in the areas of process monitoring, process control, and process development for injection molding. His recent focus has been on the design and development of medical devices in collaboration with smaller medical device companies and innovators.

Related Classes

Related Classes

Tags

Published

  • 2014
  • SM6859-P
  • AU Las Vegas

Software

  • Moldflow Insight

Industry

  • Manufacturing and Product Design

Topics

  • Simulation