The ability of precision hard turning to increase rolling contact fatigue life |
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| Affiliation: | 1. Laboratoire de Mécanique Matériaux et Procédés, ESSTT, 5, Avenue Taha Hussein, 1008, Tunis, Tunisia;2. Laboratoire Roberval, UMR 6253, UTC/CNRS, Centre de Recherche de Royallieu, 60205 Compiègne, France;3. Laboratoire TemPo/LAMIH UMR 8201, Université de Valenciennes et du Hainaut Cambrésis, Le Mont Houy, 59313 Valenciennes, France;1. School of Mechanical and Building Sciences, Vellore Institute of Technology, Vellore 632014, Tamilnadu, India.;2. Automobile Engineering Department, Rajarambapu Institute of Technology, Rajaramnagar, Sakharale, Affiliated to Shivaji University, Kolhapur, Islampur 415414, Maharashtra, India.;3. Mechanical Engineering Department, Rajarambapu Institute of Technology, Rajaramnagar, Sakharale, Affiliated to Shivaji University, Kolhapur, Islampur 415414, Maharashtra, India.;1. Laboratory of Machining Processes, Department of Mechanical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Jalan Almamater, 20155 Medan, Indonesia;2. Department of Chemical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Jalan Almamater, 20155 Medan, Indonesia;1. University of Ulsan, Ulsan, Republic of Korea;2. University of Ulsan, Ulsan, Republic of Korea |
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| Abstract: | In this paper, precision hard turning is proposed for the finishing of the AISI 52100 bearing components to improve rolling contact fatigue life. This finishing process induces a homogenous microstructure at surface and subsurface layers. Fatigue life tests performed on a twin-disk machine show that rolling contact fatigue life increases as Ra value decreases. The bearing components reached 0.32 million cycles for Ra=0.25 μm and 5.2 million cycles for Ra=0.11 μm. In comparison, the bearing components achieved 1.2 million cycles with grinding (Ra=0.2 μm) and 3.2 million cycles with grinding followed by honing (Ra=0.05 μm) respectively. |
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