YAGレーザによる難削材料の加熱旋削加工に関する研究 : 第1報, レーザビーム照射による切削域の温度上昇の解析

概要

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In order to apply YAG laser to hot turning of difficult to cut materials, it is essential to make clear the temperature rise in the cutting region of a work piece due to irradiation of the laser beam. A theoretical solution has been derived of the temperature rise of an isotropic and homogeneous rectangular parallelepiped, which is a model of hollow round bars in turning, when the laser beam is continuously irradiated ahead the cutting region. Numerical examinations were made of the temperature rises in the cutting region. The temperature rise decreases as an increase in cutting speed. The distance from the laser beam irradiation position to the cutting region should be not greater than five times of the beam diameter, because the temperature rise markedly decreases as an increase in distance. Available equations have been proposed to estimate the maximum temperature rise, heat penetration depth, and average temperature rise.
一般社団法人日本機械学会の論文
1998-04-25