Abstract
A commercially available insert has been used to turn an AISI 4340 steel at speeds placed between 325 and 1000 m/min. The flank wear was measured in connection to cutting time. This is to determine the tool life defined as the usable time that has elapsed before the flank wear has reached the criterion value.
It is shown that an increase in cutting speed causes a higher decrease of the time of the second gradual stage of the wear process. This is due to the thin coat layer which is rapidly peeled off when high-speed turning.
The investigation included the realization of a wear model in relation to time and to cutting speed. An empirical model has also been developed for tool life determination in connection with cutting speed.
On the basis of the results obtained it is possible to set optimal cutting speed to achieve the maximum tool life.
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Bouzid Saï, W. An investigation of tool wear in high-speed turning of AISI 4340 steel. Int J Adv Manuf Technol 26, 330–334 (2005). https://doi.org/10.1007/s00170-003-1991-5
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DOI: https://doi.org/10.1007/s00170-003-1991-5