CO2レーザによる鋼の表面改質層の被削性とその改善

フォーマット:

論文

責任表示:

田中, 隆太郎 ; 上田, 隆司 ; 細川, 晃 ; 林, 勇伝 ; 山田, 啓司

言語:

日本語

出版情報:

The Japan Society of Mechanical Engineers = 日本機械学会, 2007-03-25

著者名:

• 田中, 隆太郎
• 上田, 隆司
• 細川, 晃
• 林, 勇伝
• 山田, 啓司

掲載情報:

日本機械学會論文集 C編 = Transactions of the Japan Society of Mechanical Engineers Series C

ISSN:

0387-5024      

巻:

73

通号:

727

開始ページ:

879

終了ページ:

884

バージョン:

publisher

概要:

This study deals with the machinability of steels after heat treatment with CO2, laser using h-BN powder and blast furnace slug as absorbent. h-BN is well known as solid lubricant. As for blast furnace slug, its composition is similar to that of inclusions in calcium dioxide steel that shows good machinability. The absorbance of slug and h-BN were more than 80%, so it is said that these powders can be used as absorbent for CO2, laser. Only in the case of h-BN, absorbent was … melted into substrate and its depth was about 200 μm. When turning the steels after laser heat treatment using h-BN power and blast furnace slug as absorbent, carbide tool showed smaller tool wear than the case of carbon type absorbent. In the profile of the machined surface, there was a wave of about 5 μm in amplitude and its wavelength was equal to the feed rate of laser in heat treatment. This is because the workpiece surface after laser heat treatment has a periodic distribution in hardness. The hardness in the surface layer of workpiece was higher than that of the substrate. 続きを見る

URL:

http://hdl.handle.net/2297/37004