炭素鋼のパルスYAGレーザ焼入れに及ぼす照射面の形状効果(第2報) : レーザ光軸と照射面が傾斜した場合

概要

論文の詳細を見る
A process of pulsed YAG laser surface hardening of a carbon steel is numerically simulated in the case when laser optical axis is inclined to irradiation surface by means of the same method as in the first report. The obtained results are summarized in the followings being compared with the first report when the optical axis is perpendicular to the surface. Maximum temperature at the end of heating process on the laser irradiation surface with convex or spheroid cone is higher than that with the concave shape. The depth of the laser irradiated zone, however, clearly depends on the radius of the cone, and so high residual stresses are generated in the intermediate structure produced in the material. Difference in the shape such as concave or spheroid cone depicts no effect on the temperature, metallic structures and residual stresses.
福山大学の論文