Strength Optimization of Induction Hardened Splined Shaft – Material and Geometric Aspects

the current study presents a modeling framework to determine the torsion strength of an induction hardened splined shaft by considering geometry and material aspects with the aim to optimize the static torsion strength by selection of spline geometry and hardness depth. Six different spline geometries and seven different hardness profiles including non-hardened and throughhardened shafts have been considered. The results reveal that the torque that causes initial yielding of the induction hardened splined shaft is strongly dependent on the hardness depth and the geometry of the spline teeth. Guidelines for selection of the appropriate hardness depth and spline geometry are given such that an optimum static torsion strength of the component can be achieved.

• I. Barsoum
• F. Khan

• Static strength
• splined shaft
• torsion
• induction hardening
• hardness profile
• finite element
• optimization
• design.

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