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Evaluation of Press & Sinter Connecting Rods with Warm Compaction Process
Technical Paper
2000-01-0402
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Conventional forged and powder forged connecting rods (con-rods) for automotive engines have been a successful application for an appreciable amount of time. In recent years several powder metallurgy (P/M) processes have been proposed to eliminate the need for forging, for example heat treatment after sintering or double compacting - double sintering./1/
A new P/M alloy which achieves a density of nearly 7.2 g/cm3 using a Warm Compaction process has been developed. This alloy has high fatigue strength, and high Young's modulus as compared to conventional P/M alloys and processing (single press - single sintering). The new alloy also has machinability as good as wrought steel as determined by a drilling test.
Con-rods made from this alloy, employing the Warm Compaction processes, were evaluated. Weight was almost the same as compared to conventional forged con-rods intended for three-cylinder engines. The shape of the con-rod using the new alloy was determined by finite element analysis with consideration of material properties. The new con-rod satisfied fatigue strength requirements for this type of engine based on axial loading test.
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Authors
Citation
Kosaka, N., Yamaguti, T., Sakai, T., and Lindberg, C., "Evaluation of Press & Sinter Connecting Rods with Warm Compaction Process," SAE Technical Paper 2000-01-0402, 2000, https://doi.org/10.4271/2000-01-0402.Also In
References
- Ernst E. Eilrich U. Weber M. KREBSOGE, PM - Connecting Rods:Porosity Versus Performance - An Invitable Conflict? No. 960383 , SAE 1996