New Source of Fast-Cycle ‘Rapid’ Tooling

WEB EXCLUSIVE:At the recent NPE 2009 show in Chicago, Matsui Mfg.

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At the recent NPE 2009 show in Chicago, Matsui Mfg. Co., Ltd. of Japan (U.S. office in Hanover Park, Ill., announced that it is expanding from plastics auxiliary equipment into molds and mold components. Its goal is to provide tooling for complex parts in as little as half the time and half the cost of standard tooling, using rapid-tooling technology. The molds also are designed for higher productivity than standard molds. Matsui is working with OPM Laboratory Co., Ltd. of Kyoto, Japan, to design and build molds and mold parts.
The key to fast mold production at low cost is the use of laser sintering of powdered metal to produce cores and cavities, which are finished by high-speed machining. What’s more, the resulting tools are porous, so they have built-in venting capability.
Laser sintering allows integral forming of conformal cooling channels in the mold, which follow the contours of the molded part more closely than straight gun-drilled channels. Optimum cooling and cycle time is possible through use of technology licensed from Ritemp Technologies Pty. Ltd. in Australia, represented here by SWM & Associates, Toronto. Ritemp eliminates water lines altogether, replacing them with an evacuated chamber partly filled with water, which completely envelops the mold-cooling surfaces. Water continuously boils and condenses (with the aid of heat exchangers) inside this sealed chamber.
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Ritemp Technologies Pty. Ltd.
1084 South Rd. P.O. Box 338
Edwardstown (Adelaide) 5072, Australia