Development of a New Ecological Magnetic Abrasive Tool for Finishing Bio-Wire Material

Yin, Cheng; Heng, Lida; Kim, Jeong Su; Kim, Min Soo; Mun, Sang Don

doi:10.3390/ma12050714

Cited by 10 publications

(3 citation statements)

References 25 publications

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“…A cylindrical MAF is a non-conventional finishing process which is used to produce a high-level surface quality on the object with a mirror surface level [ 51 , 78 , 79 ]. Chang et al [ 22 ] proposed a cylindrical MAF for the external finishing of SKD11 material (Ø 15 mm × 100 mm) using unbonded magnetic abrasives.…”

Section: Non-conventional Finishing Processesmentioning

confidence: 99%

A Review on Surface Finishing Techniques for Difficult-to-Machine Ceramics by Non-Conventional Finishing Processes

et al. 2022

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Ceramics are advanced engineering materials in which have been broadly used in numerous industries due to their superior mechanical and physical properties. For application, the industries require that the ceramic products have high-quality surface finishes, high dimensional accuracy, and clean surfaces to prevent and minimize thermal contact, adhesion, friction, and wear. Ceramics have been classified as difficult-to-machine materials owing to their high hardness, and brittleness. Thus, it is extremely difficult to process them with conventional finishing processes. In this review, trends in the development of non-conventional finishing processes for the surface finishing of difficult-to-machine ceramics are discussed and compared to better comprehend the key finishing capabilities and limitations of each process on improvements in terms of surface roughness. In addition, the future direction of non-conventional finishing processes is introduced. This review will be helpful to many researchers and academicians for carrying out additional research related to the surface finishing techniques of ceramics for applications in various fields.

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Section: Non-conventional Finishing Processesmentioning

confidence: 99%

A Review on Surface Finishing Techniques for Difficult-to-Machine Ceramics by Non-Conventional Finishing Processes

et al. 2022

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“…According to his study, the voltage and working gap are obtained to be the best parameters for a change in surface roughness (∆Ra). However, such techniques typically use industrial processing oils (e.g., light oil, oil mist, SEA oil), which contain toxic substances that are likely to exist on the finished surface [11], reducing the appeal of such products [12]. Park et al [13] have explained that, in the machining process, when industrial oils such as petroleum-based oils are used, they possibly are more harmful to human health than ecological oils.…”

Section: Introductionmentioning

confidence: 99%

Effect of Environmentally Friendly Oil on Ni-Ti Stent Wire Using Ultraprecision Magnetic Abrasive Finishing

Kim

Nam

Heng

et al. 2020

Metals

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Nickel-titanium (Ni-Ti) has been widely used to make shape-memory actuator wire for numerous medical industrial applications, with the result that it frequently comes into contact with the human body. High-quality and nontoxic surfaces of this material are therefore in high demand. We used a rotating magnetic field for an ultraprecision finishing of Ni-Ti stent wire biomaterials and evaluated the finishing technique’s efficacy with different processing oils. To create nontoxic Ni-Ti stent wire, the industrial processing oils that are generally used in the surface improvement process were exchanged for oils with low environmental impacts, and processed under rotating magnetic fields at different speeds and processing times. The processing performance of the different oils was compared and verified. The results show that ultraprecision magnetic abrasive finishing that uses olive and castor oil improves surface roughness by 66.67%, and 45.83%, respectively. SEM and energy-dispersive X-ray spectroscopy (EDX) analyses of the finished components (before and after processing) showed that the material composition of the Ni-Ti stent wire was not changed. Additionally, the magnetic abrasive tool composition was not found on the surface of the finished Ni-Ti stent wire. In conclusion, the environmentally friendly oil effectively improved the diameter of the Ni-Ti stent wire, demonstrating the utility of olive and castor oil in ultraprecision finishing of Ni-Ti stent wire biomaterials.

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“…The austenitic stainless steel bars (AISI 304 bar, dimensions: Ø3 × 50 mm 2 ; Ra: 0.32 µm) were used as the cylindrical workpieces for this experimental work. The cylindrical workpiece was inserted inside the collet chuck of an ultra-high-speed air spindle (speed range: 1000-80,000 rpm), and the unbonded magnetic abrasive tools were inserted into the machined area [15]. The cylindrical workpiece was rotated at an ultra-high-speed (80,000 rpm), and the electromotive liner slider was used to generate the vibration action of the magnetic poles at 10 Hz of vibration frequency with 2 mm of amplitude.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High-Speed Magnetic Abrasive Surface Micro-Machining of AISI 304 Cylindrical Bar

Yin

Wang

Kim

et al. 2019

Metals

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The ultra-high-speed magnetic abrasive machining (UHSMAM) process is a surface improvement technique, which has been widely used to minimize the surface accuracy and change the precision morphology of difficult-to-machine materials. Surface integrity plays an important role in the machining process, because it is used to evaluate the high stress and the loaded components on the machined surface. It is important to evaluate the plastically deformed layers in ultra-precision machining surface of material. However, the usual plastic strains in the ultra-precision machining surface are significantly difficult to consider. In this paper, an ultra-high-speed magnetic abrasive machining technique is used to improve the surface accuracy and dimensional accuracy of an AISI 304 bars. Additionally, the subsequent recrystallizations technique is used for measuring the plastic strain on machined surface of AISI 304 bars. The purpose of this paper is to evaluate the effects of an UHSMAM process on the plastic strains and the strain energy of the machined surface, and to evaluate the residual strain in the plastic deformation of AISI 304 bars materials by analyzing a plastically deformed layer. The results showed that the plastic strain of the material did not change after machined by an UHSMAM process. Based on the results, an UHSMAM process could significantly improve the surface roughness, micro-diameter, and removal weight of AISI 304 bars effectively. The surface roughness Ra of AISI 304 bars was improved from 0.32 µm to 0.03 µm for 40 s of machining time at 80,000 rpm of workpiece revolution speed.

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Development of a New Ecological Magnetic Abrasive Tool for Finishing Bio-Wire Material

Cited by 10 publications

References 25 publications

A Review on Surface Finishing Techniques for Difficult-to-Machine Ceramics by Non-Conventional Finishing Processes

A Review on Surface Finishing Techniques for Difficult-to-Machine Ceramics by Non-Conventional Finishing Processes

Effect of Environmentally Friendly Oil on Ni-Ti Stent Wire Using Ultraprecision Magnetic Abrasive Finishing

Ultra-High-Speed Magnetic Abrasive Surface Micro-Machining of AISI 304 Cylindrical Bar

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