Fast fabrication of fine functional surface with ultrasonic-assisted machining process

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820018
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Production engineering/Processing studies
• Research Institution: Tohoku University
• Principal Investigator: SHIMADA Keita 東北大学, 工学(系)研究科(研究院), 助教 (30633383)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 超音波加工 / 固定砥粒 / 表面性状

Outline of Final Research Achievements

In this project, development of a fabrication method of micro- and submicrometer-sized fine structures was conducted by using ultrasonic-vibration assisted machining. The developed ultrasonic-assisted device can employ both the longitudinal and the bending vibration modes, and microstructures were created by controlling the vibration, the tool rotation and the workpiece feed motion. When using the longitudinal vibration mode, sinusoidal patterns were carved on the workpiece surface, and it was found that a two-rake-face tool is better to fabricate structures without edge burrs. When using the bending vibration mode, it was figured out that the mechanism of fabricating microstructures is mainly plastic deformation by the tool indentation. Deterioration of structures may occur by the interference of the flank face.

Free Research Field

生産工学・加工学