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High Performance Forged Steel Crankshafts - Cost Reduction Opportunities
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English
Abstract
Higher horsepower per liter engines have put more demand on the crankshaft, often requiring the use of forged steel. This paper examines cost reduction opportunities to offset the penalties associated with forged steel, with raw material and machinability being the primary factors evaluated. A cost model for crankshaft processing is utilized in this paper as a design tool to select the lowest cost material grade. This model is supported by fatigue and machinability data for various steel grades. Materials considered are medium carbon, low alloy, and microalloy steels; the effects of sulfur as a machining enhancer is also studied.
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Citation
Hoffmann, J. and Turonek, R., "High Performance Forged Steel Crankshafts - Cost Reduction Opportunities," SAE Technical Paper 920784, 1992, https://doi.org/10.4271/920784.Also In
References
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- Brossard L. C. Joseph R. A. “Substitutes for Lead in Alloy Steels” Republic Steel Research Center Internal report 1983
- Metal's Handbook Machining 16 9th ASM International 1989 42
- Clark J. P. Field, F. R. III Nallicheri N. V. “Engine State-of-the-Art A Competitive Assessment of Steel” AISI Automotive Applications Committee 1989