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Title: Development of High-Strength Suspension Coil Springs in which Corrosion Fatigue Strength is Important
Author: Nakano Sakakibara Wakita Sugimoto
Source: Society of Automotive Engineers, Inc. p.1-7
Publication year 2000
Document number: 2000004
Number of pages: 7
Abstract:
For the weight reduction of suspension coil springs for automobiles, high-strength steel has been developed. But, in general, strength and corrosion fatigue are
contradictory. Then the technological basis is to raise durability and sag resistance, and further improvement of the corrosion fatigue strength is important.
As a solution for the problem, element design which improved the performance against corrosion and optimum condition of shot peening process were studied. Thus high-strength
suspension coil springs have superior corrosion fatigue strength, compared with the spring made of SAE9260 were developed.
Moreover, as a new basic evaluation, corrosion fatigue test of springs with an artifical pit was worked out.
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This page last revised: 04/24/2008