Arc Phenomenon and Wire Fusion in Arc Spraying : Study on Arc Spraying (Report 2)

概要

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Arc phenomenon and wire fusion in the arc spraying of aluminium and stainless steel are observed by a high speed camera. Arc voltage and arc current are measured by an oscilloscope. The whole arc spraying process from the wire fusing stage to the particle adhesion is investigated. Main results of the experiments are summarized as follows : (1) The arc fluctuates periodically with a period of 0.6-1.2 ms in this study. (2) The fused metal flies in a band like shape at relatively low speeds in the arc flame. (3) Arc voltage fluctuates within 50% of its average value, corresponding to the motion of the arc under normal spraying conditions, but short circuiting does not occur. (4) The fluctuation of arc voltage depends on the spraying condition and material, and it is closely related with the adhesive strength of sprayed coating.
社団法人溶接学会の論文
1984-10-01