小形印字ヘッドにおけるYAGレーザ溶接加工

概要

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This paper describes the optimum YAG laser welding conditions applied to the manufacturing of a workless on magnet print wire matrix head. The relation between the YAG laser welding conditions and metal structures is clarified. Furthermore, the effects of laser power, amount of defocus and heat treatment temperature are examined in relation to mechanical welding strength. The resuiting optimum welding conditions are summarized as follows : laser power is 2.5-5J, heat treatment temperature is 150-200℃, and the amount of defocus ±1mm. With these conditions, a welding strength of over l00N is obtained. The printing head weight is reduced to about dog and life is increased to over 10^7 printing times. This means that the weight is one-fifth and the life is twice that of previously reported printing heads.
公益社団法人精密工学会の論文
1983-10-05