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AN APPARATUS AND PROCESS FOR SOLID-STATE DEPOSITION AND CONSOLIDATION OF HIGH VELOCITY POWDER PARTICLES USING THERMAL PLASTIC DEFORMATION
AN APPARATUS AND PROCESS FOR SOLID-STATE DEPOSITION AND CONSOLIDATION OF HIGH VELOCITY POWDER PARTICLES USING THERMAL PLASTIC DEFORMATION
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机译:利用热塑性变形进行高速粉末颗粒固相沉积和固结的装置和方法
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摘要
The invention relates to an apparatus and process for solid-state deposition and consolidation of powder particles entrained in a subsonic or sonic gas jet onto the surface of an object. Under high velocity impact and thermal plastic deformation, the powder particles adhesively bond to the substrate and cohesively bond together to form consolidated materials with metallurgical bonds. The powder particles and optionally the surface of the object are heated to a temperature that reduces yield strength and permits plastic deformation at low flow stress levels during high velocity impact, but which is not so high as to melt the powder particles.
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