Wire arc additive manufacturing

Wire arc additive manufacturing

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Credit: JAMES KING-HOLMES/SCIENCE PHOTO LIBRARY

Caption: 77A semi-finished piece of steel-titanium fabricated using wire + arc additive manufacturing (WAAM). Optical interference patterns produce the iridescent colours. The metal would be finished by conventional machining to a smooth surface, as seen on the right. WAAM deposits layers of metal from a wire in a welding technique. Items are subsequently machined to a conventional finish but the time taken to manufacture such pieces from steel, aluminium, titanium, copper and other metals, alloys and composite materials is significantly shorter than using conventional methods, with considerable cost savings. The concept was first described in 1927 but developments in robotic control are creating interest in its possible importance in the manufacture of, for instance, aircraft parts which are conventionally machined from solid blocks of metal. Photographed at Cranfield University, UK.

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Keywords: 3d printing, additive, aerospace, arc, automation, cranfield university, engineering, england, fabrication, industrial, industry, iridescence, iridescent, machining, manufacturing, materials, metal, physics, robot, robotics, steel, steel-titanium, surface, technology, titanium, uk, waam, weld, welding, wire

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