レーザ多重熱サイクルによる金属表面の微細化に関する研究(S55-1 レーザ加工(1),S55 レーザ加工)

概要

論文の詳細を見る
The effect of laser melting with multiple thermal cycles on grain refining of carbon steels and aluminum alloys ahs been investigated using 2.4kW CO2 laser and beam rotating device. Phase transformation from liquid to solid and from solid to liquid can be promoted in the metal during the laser processing. The nucleation and growth of solid crystal is suppressed by rapid thermal cycle. Therefore, grain refining is available in laser remelting. of alloys. The effect of solidification range of alloys was also investigated. As a result, the grain size (DAS) was decreased by rapid thermal cycle during laser melting of metal surface. The mechanical properties like wear resistance and hardness were estimated.
一般社団法人日本機械学会の論文
2004-09-04