TY - GEN
T1 - Tool wear characteristics of CBN tools in the finish machining of tool steels
AU - Sista, Prasad S.
AU - Swain, Seiden O.
AU - Chandrasekar, Srinivasan
AU - Farris, Thomas N.
N1 - Publisher Copyright:
© 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1997
Y1 - 1997
N2 - A study has been made of the wear characteristics of CBN tools in the dry and wet finish machining of M2 tool steel, heat treated to a hardness of 60-62 Rc. The repeatability of CBN tool flank wear, the Taylor tool life exponent for CBN tools, the effect of coolant on tool wear and tool life, and the variation of component surface finish and cutting forces with tool wear have been measured. It is found that the evolution of tool wear is very repeatable, the Taylor tool life exponent for CBN tools is 0.26 in dry finish machining and that the use of a coolant leads to a 20-25% increase in tool life. The variation of surface finish with flank wear is also observed to be qualitatively similar in multiple cutting experiments carried out at the same conditions in dry and wet machining. The machining forces show a steady increase with flank wear with the radial force showing the greatest increase. The specific cutting energy for the CBN finish machining of M2 steel has been estimated and it is found to be about 10 times smaller than the specific grinding energy.
AB - A study has been made of the wear characteristics of CBN tools in the dry and wet finish machining of M2 tool steel, heat treated to a hardness of 60-62 Rc. The repeatability of CBN tool flank wear, the Taylor tool life exponent for CBN tools, the effect of coolant on tool wear and tool life, and the variation of component surface finish and cutting forces with tool wear have been measured. It is found that the evolution of tool wear is very repeatable, the Taylor tool life exponent for CBN tools is 0.26 in dry finish machining and that the use of a coolant leads to a 20-25% increase in tool life. The variation of surface finish with flank wear is also observed to be qualitatively similar in multiple cutting experiments carried out at the same conditions in dry and wet machining. The machining forces show a steady increase with flank wear with the radial force showing the greatest increase. The specific cutting energy for the CBN finish machining of M2 steel has been estimated and it is found to be about 10 times smaller than the specific grinding energy.
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U2 - 10.1115/IMECE1997-1148
DO - 10.1115/IMECE1997-1148
M3 - Conference contribution
AN - SCOPUS:85127052835
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 161
EP - 168
BT - Manufacturing Science and Engineering
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1997 International Mechanical Engineering Congress and Exposition, IMECE 1997 - Manufacturing Science and Engineering
Y2 - 16 November 1997 through 21 November 1997
ER -