Tooling

Sequential Gating & Gas Assist Team Up for the First Time

Two fast-growing injection molding techniques—valve-gate sequencing and gas-assist technology—have come together in one application for what is said to be the first time. The part that united the two technologies was a 14 x 30 in. x 120-130 mil computer panel being converted to plastic from metal by Hewlett-Packard Co. in Roseville, Calif. It posed a number of process problems that were best solved by combining the two procedures.

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Rapid Tooling Is Ready For Prime Time

Despite the advantage of speedy mold building, rapid-tooling technologies have gained only a toehold in the general moldmaking arena. But that could change as new developments improve dimensional accuracy, durability, and cooling efficiency to compete with traditional methods for making production tools.

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CAD & CAE

NPE 2000 offered a brand-new option for processors and mold designers: the ability to “rent” flow analysis on a pay-per-use basis over the Internet.

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Thermoforming

Experts Predict the Next Big Thing in Thermoforming

What changes are in store for thermoforming in this decade? We polled nine industry experts on new developments to watch out for in materials, machinery, tooling, and controls.

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Get Custom Hot Halves in a Hurry

If you need a complete bolt-on hot-runner system on short notice, and off-the-shelf systems come up short in design flexibility, there's a solution available from Husky Injection Molding Systems of Milton, Vt.

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Mold Design Goes Solid

Injection mold design is in the midst of a second computer revolution.

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New Software Manages Toolmaking Tasks

With today's mold buyers demanding speedy delivery, lower costs, and endless engineering changes, tool making can be more frustratingly complex than ever.

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Melt Oscillation Molds Better Parts

An updated Scorim process oscillates the melt back and forth inside the mold with more flexibility and fewer machinery modifications. Here's a look at how the "new" Scorim can enhance both part strength and cosmetics.

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Microcellular Foam Promises Big Savings in Injection Molding

Automotive parts supplier Injectronics Inc. in Clinton, Mass., will soon be the first injection molder to use a new microcellular foam technology developed by Trexel Inc., Woburn, Mass.

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For Better Process Control Start With Simulation

A new generation of process-control systems interpret results of injection molding simulation as the starting point for machine settings and control setpoints.

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Plastics Size Reduction