Ultra-High-Precision Machining of Microscale-Diameter Zirconia Ceramic Bars by Means of Magnetic Abrasive Finishing

• DOI: 10.4028/www.scientific.net/amm.851.98
• Publication Date: 2016-09-07T13:56:17Z
• Authors: Nam Jun Park; Li Da Heng; Rui Wang; Min Soo Kim; Sang Don Mun
• Keywords: Microscale chemistry; Abrasive machining

The paper proposes a new ultra-high-precision machining technique, based on magnetic abrasive finishing, to achieve both high dimensional accuracy and surface of microscale-diameter materials that are difficult or impossible machine conventionally. Microscale-diameter zirconia ceramic bars were used as the workpieces, machined by means proposed technique at different workpiece revolution speeds (1,000, 10,000, 20,000, 35,000 rpm). Machining depth increased with speed, was greatest for highest speed studied rpm. also yielded excellent performance in terms roughness; initial roughness (Ra) 0.18 µm decreased 0.02 under rpm 40 s. SEM AFM micrographs gave evidence technique’s performance.