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Micro machining of an STS 304 bar by magnetic abrasive finishing

Ik-Tae Im
The Journal of Mechanical Science and Technology, vol. 23, no. 7, pp.1982-1988, 2009

Abstract : A magnetic abrasive finishing process is a method of non-traditional precision machining in which the finishing process is completed using magnetic force and magnetic abrasives. In this research, a STS 304 cylindrical workpiece was finished using a magnetic abrasive finishing process at 30,000 rpm, and the roughness, roundness, and changes in the micro-diameter were investigated. The study showed that it is possible to control the micro-diameter and weight of the STS 304 cylindrical workpiece by using a near linear approach. Surface roughness as fine as 0.06 §­ (Ry) and roundness as fine as 0.12 §­ (LZS) were achievable by using a diamond paste with 1 §­ particles. Vibrational motion applied to the workpiece improved the surface roughness. The improvement of the surface roughness was achieved because the vibrational motion effectively removes unevenness in the rotational direction and the direction orthogonal to it.

Keyword : Magnetic abrasive finishing process; Non-traditional precision machining; Magnetic abrasives; Microdiameter;

 
 
 
 
 
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