This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Lightweight Wheel Bearing with Dissimilar Materials for Vehicle
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 15, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Limited fossil fuel resources, air pollution, and global warming all drive strengthening of fuel economy and vehicle emission standards globally. Much R&D continues to be dedicated to improve fuel efficiency of automobiles and to reduce exhaust gasses. These include improvement of engine/driveline performance for higher efficiency, development of alternative energy, and minimization of air resistance through aerodynamic design optimization. OEM weight reduction-focused research has extended into chassis components (steering knuckle, brakes, control arms, etc.) in sequence from body-in-white(BIW). Wheel bearings, one of the core components of a driveline and part of a vehicle’s unsprung mass, are also being required to reduce weight. Conventionally, wheel bearings have achieved “lightweighting” primarily through design optimization methods. They have been highly optimized today using steel based materials. Opportunities for further mass optimization are increasingly limited and so the focus of this study is integration of lighter-materials into steel bearing components for weight savings. Both aluminum and CFRP were considered in the study for partial integration into the steel hub flange which interfaces directly with the wheel. The application of lightweight materials was targeted on the specific area of the hub which is relatively less affected by impact loads. Hot forging and compressive molding were applied to induce denser bonding of the dissimilar materials. The slope angle design having an inverse draft at the combined boundary was applied to reinforce physical bonding and to enhance joint integrity. In addition, a Zinc-based coating was partially applied on the surface of the combined boundary to protect against galvanic corrosion between dissimilar materials. Bearings containing the new composite hubs achieved a 20% weight reduction compared to conventional wheel bearings made of full steel.
CitationLee, I., Lee, S., Shim, H., Lee, J. et al., "Lightweight Wheel Bearing with Dissimilar Materials for Vehicle," SAE Technical Paper 2019-01-2134, 2019, https://doi.org/10.4271/2019-01-2134.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
|[Unnamed Dataset 4]|
|[Unnamed Dataset 5]|
|[Unnamed Dataset 6]|
|[Unnamed Dataset 7]|
|[Unnamed Dataset 8]|
- Yoon, K.C. , “The Smart Changes of Future Automotive (윤관철, 미래자동차의스마트한 변화),” pp. 28, BNK투자증권, 2016.
- Toyota Technical Review, 02 Jun. vol. 52, No. 1.
- Choi, J. and Mazumder, J. , “Numerical and Experimental Analysis for Solidification and Residual Stress in the GMAW Process for AISI 304 Stainless Steel,” J. Mater. Sci. 37:2143-2158, 2002.
- Ramkumar, T., Selvakumar, M., Narayanasamy, P., Ayisha Begam, A., and Mathavan, P. , “Studies on the Structural Property, Mechanical Relationships and Corrosion Behavior of Inconel 718 and SS 316L Dissimilar Joints by TIG Welding Without Using Activated Flux,” J. Manuf. Process. 30:290-298, 2017.
- Wu, X., Chandel, R.S., Pheow, S.H., and Li, H. , “Brazing of Inconel X-750 to Stainless Steel 304 Using Induction Process,” Materials Science and Engineering: A 288:84-90, 2000.
- International Journal of Precision Engineering and Manufacturing -Green Technology, Vol. 5, No. 5, pp. 613-621.
- Nguyen, T., Oh, H.-S., Hong, S.-T., Han, H.N. et al. , “A Review of Electrically-Assisted Manufacturing,” International Journal of Precision Engineering and Manufacturing-Green Technology 2(4):365-376, 2015.
- Thomas, W.M., Nicholas, E.D., Needham, J.C., Murch, M.G., Templesmith, P., and Dawes, C.J. , G.B. Patent 9125978.8, 1991.
- Journal of Mechanical Science and Technology, 31(8):3955-3960, 2017.
- Characterization of Friction Stir Welded Joint of Low Nickel Austenitic Stainless Steel and Modified Ferritic Stainless Steel,” Met. Mater. Int. 23(5):948-957, 2017.
- Liu, X., Lan, S., and Ni, J. , “Analysis of Process Parameters Effects on Friction Stir Welding of Dissimilar Aluminum Alloy to Advanced High Strength Steel,” Mater. Des. 59:50-62, 2014.
- Damodaram, R., Ganesh Sundara Raman, S., and Prasad Rao, K. , “Microsturcture and Mechanical Properties of Friction Welded Alloy 718,” Mater. Sci. Eng: A 560:781-786, 2013.
- Mori, K., Bay, N., Fratini, L., Micari, F., and Tekkaya, A.E. , “Joining by Plastic Deformation,” CIRP Ann-Manuf. Techn. 62(2):673-694, 2013.
- Peng, L., Xu, Z., and Lai, X. , “An Investigation of Electrical-Assisted Solid-State Welding/Bonding Process for Thin Metallic Sheets: Experiments and Modeling,” Pro. IME. B. J. Eng. Manufact. 228(4):582-594, 2014.
- Hong, S.-T., Li, Y.F., Park, J.W., and Han, H.N. , “Effectiveness of Electrically Assisted Solid-State Pressure Joining Using an Additive Manufactured Porous Interlayer,” CIRP Ann-Manuf. Techn. 67(1):297-300, 2018.
- Lee, S., Choi, Y., Cho, K., and Park, H. , “Metallurgical Approach for Improving Life and Brinell Resistance in Wheel Hub Units,” SAE Int. J. Mater. Manf. 11(1):79-88, March 2018, doi:10.4271/05-11-01-0008.