July, 2012
Hoffman Estates, IL — Renishaw’s new laser melting additive-metal man- ufacturing process is capable of pro- ducing fully dense metal parts direct from 3D CAD data using a high-pow- ered fiber laser. Parts are built layer by layer, in thicknesses ranging from 20 to 100µ, using a range of fine metal powders that are fully melted in a tightly controlled atmosphere. The newest machines utilizes a
third-generation design representing state-of-the-art manufacturing tech- nology. Key features include variable powder delivery, ultra low oxygen content in the build atmosphere, and a safe-change filter system to mini- mize user contact with materials. Two systems are available: the
AM125 and the AM250, both of which use vacuum technology for low gas consumption. Both utilize “machine tool” engineering in design, opera- tion, and serviceability, emphasizing ruggedness and ease of operation. The touch-screen operator in -
terface includes menu options for machine preparation and clean down. Consumable costs are mini- mized through features such as the soft re-coater blade that can be rotat- ed several times before replacement, use of low-cost filter elements, and low gas consumption — all of which improve system reliability and cost of ownership. The company’s additive-metal
systems can process a wide variety of materials, including 316L and 17-
Fujipoly Bows New Thermal Interface Medium
Carteret, NJ — New from Fujipoly is its Sarcon® 25GR-T2d, a very soft highly conformable thermal interface medium that is suitable for both low- and high-volume production applica- tions. The reinforced 0.25mm thick TIM also offers engineers a durable and economical solution for tight tol- erance die-cut operations. When placed between a heat source such as
www.us-tech.com
4PH SS, H13 tool steel, aluminum Al-Si-12, titanium CP, Ti-6Al-4V and 7Nb, cobalt-chrome (ASTM75), and Inconel 718 and 625. Both systems are designed for rapid material changeover, with the AM125 utiliz-
ing a cassette type materials delivery system and the AM250 a removable hopper — particularly useful for ma- terials development or use of a range of materials. To enhance productivi- ty, a valve interlock on the AM250 al- lows addition of extra powder while the process is running. The AM125 provides a part-build
Additive prototyping system.
volume of 125 x 125 x 125mm (X-Y-Z), and the AM250 provides 250 x 250 x 300mm (X-Y-Z) with Z axis extendible to 360mm. Both systems have build rates of 5 to 20cm3 per hour, depend- ing on the material, part density and geometry. The AM125 offers a choice of 100 or 200W laser, and the AM250 a 200 or 400W laser. Both of the new machines have
Page 37 Renishaw Bows Additive Mfg. Prototyping Systems
a fully welded vacuum chamber, en- abling low-pressure evacuation fol- lowed by a recharge with high purity argon gas. Gas consumption, after the initial chamber flood, is extreme- ly low, and allows operation at oxy- gen concentrations below 50 parts per million — crucial when process- ing reactive materials, and contribut- ing significantly to material integrity
and mechanical performance. Contact: Renishaw, Inc., 5277 Trillium Boulevard, Hoffman Es-
tates, IL 60192 % 847-286-9953 fax: 847-286-9974 E-mail:
jeffrey.seliga@
renishaw.com Web:
www.renishaw.com/probes
See at Semicon West Booth #2518.
New TIM pads under ICs.
a semiconductor and a nearby heat sink, this gap filler pad provides a thermal conductivity of 1.5W/m°K and a thermal resistance as low as 0.33°C-in.2/W. The TIM material is recom-
mended for applications with opera- tional temperatures between –40 and +150°C. Convenient pre-cut sheets are available up to a maximum size
of 200 x 400mm. Contact: Fujipoly America Cor-
poration, P.O. Box 119, Carteret, NJ 07008 % 732-969-0100 E-mail:
info@fujipoly.com Web:
www.fujipoly.com
10:53 AM
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