Examination on the mechanism of machining defects in wood cutting by using a large strain analysis

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K15889
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 40020:Wood science-related
• Research Institution: Forest Research and Management Organization
• Principal Investigator: Matsuda Yosuke 国立研究開発法人森林研究・整備機構, 森林総合研究所, 研究員 (70760867)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: 木材切削 / ひずみ / 画像相関法

Outline of Final Research Achievements

In wood cutting, large strain near the cutting edge is closely related to the occurrence of machining defects such as fuzzy grain. Therefore, it is important to control the strain. In this study, we enabled the digital image correlation method to measure large strain, and measured large strain near the cutting edge. It was confirmed that the type and amount of strain, which causes the chip and machining defects, varies depending on the cutting condition.

Free Research Field

木材機械加工

Academic Significance and Societal Importance of the Research Achievements

木材切削時の刃先近傍の大ひずみは切屑の分離や加工欠点の生成と密接に関係している。本研究では、木材切削時に刃先の微小領域で発生する大ひずみを検出する手法を確立した。さらに、切削条件に依存して刃先近傍のひずみの大きさや種類が変化し、加工欠点の発生に影響することを示した。本研究は、加工欠点の少ない高品質な木材製品の生産に役立つ切削工具の設計に貢献するものである。