Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition
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 imparti...
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EDP Sciences
2019-01-01
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doaj-f69865449eff40819760dc8158f040e22021-03-02T09:28:05ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01950100110.1051/e3sconf/20199501001e3sconf_icpeme2018_01001Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting ConditionMurata Mitsuaki0Hino Makoto1Kuwano Ryoichi2Kurokawa Syuhei3Department of Machanical Engineering, Kyushu Sangyo UniversityDepartment of Mechanical System Engineering, Hiroshima Institute of TechnologyDepartment of Mechanical System Engineering, Hiroshima Institute of TechnologyDepartment of Mechanical Engineering, Kyushu UniversityTransmission 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.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/21/e3sconf_icpeme2018_01001.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Murata Mitsuaki Hino Makoto Kuwano Ryoichi Kurokawa Syuhei |
spellingShingle |
Murata Mitsuaki Hino Makoto Kuwano Ryoichi Kurokawa Syuhei Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition E3S Web of Conferences |
author_facet |
Murata Mitsuaki Hino Makoto Kuwano Ryoichi Kurokawa Syuhei |
author_sort |
Murata Mitsuaki |
title |
Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition |
title_short |
Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition |
title_full |
Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition |
title_fullStr |
Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition |
title_full_unstemmed |
Machinability of SMART Forging Process Materials in Intermittent Cutting: 2nd Report : Machinability in Normal Cutting Region and Selection of Optimum Cutting Condition |
title_sort |
machinability of smart forging process materials in intermittent cutting: 2nd report : machinability in normal cutting region and selection of optimum cutting condition |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2019-01-01 |
description |
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. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/21/e3sconf_icpeme2018_01001.pdf |
work_keys_str_mv |
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