U-frame ac cast-iron motors are built with a premium Class F insulation system that has a maximum allowable operating temperature of 115C. The motors operate at temperatures 45 to 95C below the maximum allowable. This temperature difference provides a "thermal cushion" for long life in severe automotive and other industrial applications.
The Lincoln Electric Co., Motor Div., 22800 St. Clair Ave., Cleveland, OH 44117, FAX (216) 383-4730.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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