Abstract
This study proposes a new wire magnetic abrasive finishing (WMAF) process for finishing 316L SUS wire using ecological magnetic abrasive tools. 316L SUS wire is a biomaterial that is generally used in medical applications (e.g., coronary stent, orthodontics, and implantation). In medical applications of this material, a smooth surface is commonly required. Therefore, a new WMAF process using ecological magnetic abrasive tools was developed to improve the surface quality and physical properties of this biomaterial. In this study, the WMAF process of 316L SUS wire is separated into two finishing processes: (i) WMAF with ecological magnetic abrasive tools, and (ii) WMAF with industrial magnetic abrasive tools. The ecological magnetic abrasive tools consist of cuttlefish bone abrasives, olive oil, electrolytic iron powder, and diamond abrasive paste. The finishing characteristics of the two types of abrasive tools were also explored for different input parameters (i.e., vibrating magnetic field and rotating magnetic field). The results show that ecological magnetic abrasive tools can improve the initial surface roughness of 316L SUS wire from 0.23 µm to 0.06 µm. It can be concluded that ecological magnetic abrasive tools can replace industrial magnetic abrasive tools.
Highlights
The results show that ecological magnetic abrasive tools can improve the initial surface roughness of 316L SUS wire from 0.23 μm to
316L SUS wire is a biomaterial that is commonly used for medical applications because of its superior mechanical properties, physical properties, and anticorrosion properties [1,2]
The surface roughness of 316L SUS wire material was improved by wire magnetic abrasive finishing process
Summary
316L SUS wire is a biomaterial that is commonly used for medical applications (e.g., coronary stent, orthodontics, and implantation) because of its superior mechanical properties, physical properties, and anticorrosion properties [1,2]. A high-quality surface finish is required in medical applications of this material. It is difficult to achieve a high-quality surface on these wire biomaterials by conventional finishing techniques [3,4,5,6]. Surface improvement techniques such as electropolishing (ECP) and ion implantation have been used to improve the surface quality and physical properties of 316L SUS wire material. These methods can achieve a high-quality surface finish on biomaterials. Despite their demonstrated success, there are some inconveniences and limitations during and after electropolishing. Smick et al [8]
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