Development of a New Ultra-High-Precision Magnetic Abrasive Finishing for Wire Material Using a Rotating Magnetic Field

Abstract

In this paper, we propose a new ultra-high-precision magnetic abrasive finishing method for wire material which is considered to be difficult with the existing finishing process. The processing method uses a rotating magnetic field system with unbonded magnetic abrasive type. It is believed that this process can efficiently perform the ultra-high-precision finishing for producing a smooth surface finish and removing a diameter of wire material. For such a processing improvement, the following parameters are considered; rotational speed of rotating magnetic field, vibration frequency of wire material, and unbonded magnetic abrasive grain size. In order to evaluate the performance of the new finishing process for the wire material, the American Iron and Steel Institute (AISI) 1085 steel wire was used as the wire workpiece. The experimental results showed that the original surface roughness of AISI 1085 steel wire was enhanced from 0.25 µm to 0.02 µm for 60 s at 800 rpm of rotational speed. Also, the performance of the removed diameter was excellent. As the result, a new ultra-high-precision magnetic abrasive finishing using a rotating magnetic field with unbonded magnetic abrasive type could be successfully adopted for improving the surface roughness and removing the diameter of AISI 1085 steel wire material.

Surface Evaluation of a Multi-Pass Flexible Magnetic Burnishing Brush for Rough and Soft Ground 60/40 Brass

“…For instance, if the finishing material is a wire or has a micro-scale diameter, a high pressure is required to implement burnishing. However, such high pressures could damage the surface that requires finishing, and hence burnishing cannot be implemented [ 15 ].…”

Micro-Machining Characteristics in High-Speed Magnetic Abrasive Finishing for Fine Ceramic Bar

“…Amidst the remarkable advancement in industrial technologies, intensive attempts have been made to achieve better mechanical properties and performances, even under harsher conditions, especially by implementing fine ceramics to light-weighted, minimalized, and ultra-precision parts applied to the fields of information, telecommunications, nano-bio industry, photoelectric, and aeronautical/aerospace industries [1,2]. To keep pace with the trend, the machining field adopts more advanced methods for processing materials, such as grinding, polishing, lapping, superfinishing, honing, burnishing, etc.…”

Magnetic Abrasive Finishing of Beta-Titanium Wire Using Multiple Transfer Movement Method

“…However, beta-titanium alloy is difficult to machine due to its low thermal conductivity. The magnetic abrasive finishing (MAF) process is an ultra-precision machining technique which uses magnetic fields to process hard-to-work pieces [4][5][6]. Heng et al [7] applied the magnetic abrasive finishing process to achieve a high surface quality of magnesium alloy bar (Ø3 mm × 50 mm).…”