YAGレーザによるステンレス鋼の溶融・除去過程

概要

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This paper deals with the observation of fundamental processing mechanism by YAG laser irradiation on SUS 304. The processes are investigated by measuring the drilled depth and melted depth. The behavior of melt is discussed by observing the reflected laser light from the surface of workpiece and the transmitted laser light through the irradiated part. The obtained main results are as follows : (1) Melting and removing processes of metal are classified into four types (non-melt type, melt type, removal type, and mix type of melt with removal) according to the power density. (2) The maximum depth of hole (hm) closely depends on the power density (W) but not on the irradiation time so much. (3) The growing process of melted zone and the removing mechanism of molten material are explained by models based on the experimental results.
1985-05-05