Tooling
Graham Buys Tool Maker Kennedy
Graham says the acquisition will help it support customers throughout the life of their extrusion equipment.
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The Scoop on Screws
The kind used as fasteners in molds, that is. Here are some design considerations to help you choose and use the right ones.
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Tunnel Gates for Mold Designers, Part 1
Of all the gate types, tunnel gates are the most misunderstood. Here’s what you need to know to choose the best design for your application.
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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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Hot Runner Controls Add VPN Remote Access
Spark Industries says the new application provides a secure and easy way to connect to its hot runner controls from a remote PC—that is a device not on the same network as the HMIs.
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