2012 Fiscal Year Final Research Report
Mechanism of Type II chip formation in slow-speed orthogonal cutting of wood along the grain
| Project/Area Number |
22580184
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Wood science
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| Research Institution | Kyoto University |
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Principal Investigator |
OKUMURA Shogo 京都大学, 大学院・農学研究科, 教授 (40109046)
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| Co-Investigator(Kenkyū-buntansha) |
MURATA Kohji 京都大学, 大学院・農学研究科, 助教 (00293910)
FUJIWARA Yuko 京都大学, 大学院・農学研究科, 研究員 (60506088)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 木材 / 切削型 / Type II / 高速度カメラ / 高分解能X線CT / 画像相関 |
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| Research Abstract |
Workpieces of sugi, hinoki, makanba and honoki were orthogonally cut along the grain using tools with cutting angles of 30-90 degrees at undeformed chip thicknesses of 0.05-0.5 mm and a cutting speed of 10 mm/s. Movies of chip formation recorded with a high-speed video microscope and CT images of chips with a high-resolution X-ray scanner clearly showed the combinations of cutting angle and chip thickness for Type II chip formation and the boundaries between Types II and III chips, which are together called CHIJIMI-GATA in Japan. The application of digital image correlation to movies was also examined to measure cutting strains.
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