TY - JOUR
T1 - Machinability improvement and its mechanism in SUS304 austenitic stainless steel by h-BN addition
AU - Emura, Satoshi
AU - Kawajiri, Masahiro
AU - Min, Xiaohua
AU - Yamamoto, Shigeo
AU - Sakuraya, Kazuyuki
AU - Tsuzaki, Kaneaki
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - In order to improve the machinability of Type 304 austenitic stainless steels, 0.016 mass % boron and 0.2 mass % nitrogen were added, and hexagonal boron nitride (h-BN) particles (1-5 μm diameter) were precipitated. During turning with cemented carbide insert, cutting force and tool wear were reduced by h-BN precipitation, especially at higher cutting speed of more than 40 m/min. The reduction of cutting force seems to be due to the internal lubrication effect of h-BN in chip shear region and deformation flow layer, along with the lubrication between chip and carbide tool. Better disposability of chip and suppression of tool wear were also achieved by h-BN precipitation. Good machinability of h-BN precipitated Type 304 steel was also found in drilling and sawing with high-speed steel tools.
AB - In order to improve the machinability of Type 304 austenitic stainless steels, 0.016 mass % boron and 0.2 mass % nitrogen were added, and hexagonal boron nitride (h-BN) particles (1-5 μm diameter) were precipitated. During turning with cemented carbide insert, cutting force and tool wear were reduced by h-BN precipitation, especially at higher cutting speed of more than 40 m/min. The reduction of cutting force seems to be due to the internal lubrication effect of h-BN in chip shear region and deformation flow layer, along with the lubrication between chip and carbide tool. Better disposability of chip and suppression of tool wear were also achieved by h-BN precipitation. Good machinability of h-BN precipitated Type 304 steel was also found in drilling and sawing with high-speed steel tools.
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U2 - 10.2355/tetsutohagane.98.358
DO - 10.2355/tetsutohagane.98.358
M3 - Article
AN - SCOPUS:84865047330
VL - 98
SP - 358
EP - 367
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
SN - 0021-1575
IS - 7
ER -