Molds & Tooling
Best Methods of Molding Undercuts
Producing plastics parts with undercuts presents distinct challenges for molders.
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Conformal Cooled Sprue Bushings Line Expanded
PCS Company has added a 3/4-in radius for the U and B Series bushings options.
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Improve The Cooling Performance Of Your Molds
Need to figure out your mold-cooling energy requirements for the various polymers you run? What about sizing cooling circuits so they provide adequate cooling capacity? Learn the tricks of the trade here.
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Take Time to Save Time: Five Steps in Mold Design to Reduce Back-End Troubleshooting
Westminster Tool shares how the one week it typically takes to perform these five steps in the design phase can save three weeks or more in an overall tool build.
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Cooling Geometry and the Reynolds Calculation
The original Turbulent Flow Rate Calculator worked well with a round circuit diameter, such as a drilled passage, but not as well using hydraulic diameters. Here’s how the problem was fixed.
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Vacuum System Gives Molds a Chance to Vent
When the in-house vacuum systems and tooling tricks that NMC Dynaplas usually deploys to deal with trapped gas failed, it turned to a Mold-Vac system and saw reject rates go from 44% to zero.
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50 Years of Headlines … Almost
I was lucky to get an early look at many of the past half-century’s exciting developments in plastics. Here’s a selection.
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Molders’ Block: Dealing With Foreign Materials in a Hot-Runner System
Understanding plastic flow can help you understand how foreign materials move—or don’t move—through your hot-runner system.
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CPT to Offer Mold-Handling Equipment
Cincinnati Process Technologies (CPT) has partnered with German firm RUD (Aalen) to offer that company’s full line of mold-handling equipment in the U.S. and Canada.
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Clamps Allow Faster Mold Changes
Mouldpro says its Power Sliding Clamp can accommodate a range of different mold back-plate sizes and thicknesses.
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