Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report: Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition

Mitsuaki Murata, Makoto Hino, Ryoichi Kuwano, Syuhei Kurokawa

Research output: Contribution to journalConference articlepeer-review

Abstract

Transmission used in automobiles is indispensable from the viewpoint of improvement of maximum speed, quietness and fuel consumption even if the power source of automobile is changed from internal combustion engine to electric motor in the future. We are studying a heat treatment process for imparting machinability to the forged material after hot forging used for a transmission of automobiles. In the past, the heat stored in the material after hot forging was merely released into the atmosphere. We succeeded in imparting machinability to the material by cooling while well controlling the heat stored in the forged material after hot forging. In the previous paper [1], we reported the progress of tool wear of this forged material in the high-speed cutting region with the cutting speed of 200 m/min or more in intermittent cutting. In this report, we conducted cutting experiments on the machinability of this developed forged material in the normal cutting speed region with the cutting speed less than 200 m/min. As a result, at the cutting speed V of V=157 m/min or less, it reached the conclusion that the built-up edges frequently occurred and the tool was chipped due to it. From the previous report and the results of this experiment, it was found that the cutting speed V of about V=213 m/min is optimum for cutting these forged materials with cemented carbide.

Original languageEnglish
Article number01001
JournalE3S Web of Conferences
Volume95
DOIs
Publication statusPublished - May 13 2019
Event3rd International Conference on Power, Energy and Mechanical Engineering, ICPEME 2019 - Prague, Czech Republic
Duration: Feb 16 2019Feb 19 2019

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

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