In this paper results provided by an experimental investigation on friction stir welding of pure copper are exposed and discussed. 4 mm thick copper plates have been successfully welded in the butt joint configuration using a conical unthreaded tool. An electrically heated backing plate has been designed and realized to investigate the influence of pre-heating on the welded material. Macroscopic, microscopic, and microhardness analysis have been carried on to characterize the processed specimen. Obtained outcomes suggest that more complex pin shape is needed toinduce adequate material flow without pre-heating.

An experimental investigation on copper friction stir welding

CARLONE, PIERPAOLO;PALAZZO, Gaetano Salvatore;PASQUINO, Raimondo
2013

Abstract

In this paper results provided by an experimental investigation on friction stir welding of pure copper are exposed and discussed. 4 mm thick copper plates have been successfully welded in the butt joint configuration using a conical unthreaded tool. An electrically heated backing plate has been designed and realized to investigate the influence of pre-heating on the welded material. Macroscopic, microscopic, and microhardness analysis have been carried on to characterize the processed specimen. Obtained outcomes suggest that more complex pin shape is needed toinduce adequate material flow without pre-heating.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4027855
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