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Webinar Central Library

 

Manufacturing Knowledge Resource

TMEH is the former Tool & Manufacturing Engineer's Handbook; an encyclopedic reference source originally comprised of nine volumes, a desk edition, dictionary, thesaurus and other derivative works that span major manufacturing technologies and processes. It is being digitized and released in a new peer-reviewed and validated WIKI environment.

Plastics & Injection Molding Webinars

Brought to you by the Plastics Tooling & Mold Design and Injection Molding Tech Groups  

 

2009  

 

Micro 2 Title: Micro Molding with Resorbable Materials
Presenter: Donna Bibber, Micro Engineering Solutions LLC
Synopsis: As implantable and resorbable molded parts approach micro or nano in size, even a toothpick-sized runner is still too large and too costly. Resorbable raw material costs are between $3,000–$22,000/lb. This webinar explores design for manufacturing solutions for micromolding with resorbable polymers and creating net zero material losses in runner and sprue scrap. In addition, it will explore polymer property changes induced by shear stress through near micron-sized gates, humidity control for extremely small shot sizes and integrating macro to microtechnologies to produce near-micron level geometry in precision, micromold components.

 

 

Micro 1 Title: Micro Molding: Differences Beyond Size to Traditional Molding
Presenter: Carol M.F. Barry, University of Massachusetts Lowell
Synopsis: Micromolding involves more than making things smaller. This webinar will provide an overview of existing micromolding technologies including injection molding, insert molding and two-shot molding. With application for both microparts, and micro and nano features, discussion will focus on process parameters and materials, including effects of wall thickness, improving filling, shot size, processing temperatures and other processing conditions.

 

 

Hot Runner Title: Scientific Molding High Cavity Hot Runner Systems
Presenter: Terry Schwenk, Process & Design Technologies LLC
Synopsis: In recent years, higher and higher cavity tools have been constructed, and more demand for better-quality parts produced from these tools has a high emphasis on mold balancing. Because the majority of these tools incorporate hot runners, the perception has focused on the hot runner as the direct cause for the in-balanced fill of cavities; hot runner suppliers were therefore scrambling to come up with a better hot runner solution. Fueled by industry awareness that inside corner shear effects cause different melt viscosity in cold runner systems and are direct contributors to in-balance fill has resulted in the conclusion that the hot runner is the root cause of all the balancing issues associated with cavity fill. Nothing could be farther from the truth. Although this phenomenon does exist in cold runner tooling and to some degree in hot runners, it is grossly over exaggerated and is only one of many factors that affect balance fill.

 

 

Infrared Title: Better Heating, Better Cooling, Lower Costs, Less Energy and Better Parts via Infrared
Presenter: John C. Lafeber, PE, North Coast Industrial Imaging
Synopsis: Plastic is a heat-it-up, cool-it-down business. Generally, we overheat and overcool, which wastes energy and makes less than optimum product. Worse yet, we do not heat or cool consistently or uniformly. If we monitor process temperatures and steer the process toward optimum, we save energy and make the best product. This webinar will take a good look at an IR gun (a.k.a. monopixel camera)as it is the key to understanding all IR cameras. It will also look at how infrared can help all different types of plastic processes, including thermoforming, extrusion and blow molding. There will be an emphasis on injection molding and welding.

 

 

Pin Title: Using Reconfigurable Pin Tooling for Plastics & Composites Manufacturing
Presenter: Daniel F. Walczyk, PhD, PE, Rensselaer Polytechnic Institute
Synopsis: The idea of using a bed-of-pins, similar to the popular 3D Pin Art toy, as a completely reconfigurable discrete tool surface, referred to as a reconfigurable pin tool, to form or mold mechanical components with has been around for nearly 150 years. Walczyk's presentation will begin by defining what a reconfigurable pin tool is and the ideal characteristics for such a tool from a manufacturing perspective.

 

2008  

 

NX Mold Title: Creativity with NX Mold Wizard
Presenter: Jim Davis, SIEMENS PLM Software
Synopsis: This webinar discusses how to meet tooling industry challenges, such as reducing cost, reducing time and maintaining/improving quality. Learn about NX Mold Wizard with injection molding, blow molding, casting, rubber molds, custom molding and more. PDF • Audio

 

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