Browse Publications Technical Papers 2001-01-0834
2001-03-05

Improvement of Fatigue Strength of Nitrided High-Strength Valve Springs by Application of a New Super Fine Shot-Peening Technology 2001-01-0834

The peening of fine steel beads with diameters less than 80μm (referred to as SS Treatment in this paper) on the surface of nitrided and then conventionally shot-peened (with 0.6mm diameter cut steel wires) high-strength helical springs made from developed high strength valve spring wire, was found to effectively improve spring fatigue strength. This improved fatigue strength is mainly the result of very high compressive residual stress caused by work hardening of the spring surface layer without inducing deleterious surface qualities such as harmful surface micro-fissuring or surface roughness.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Recent Progress with Nitrided Valve Springs for Automobile Internal Combustion Engines

2003-01-1312

View Details

TECHNICAL PAPER

Influence of Surface Finishing and Chemical Composition on Fatigue Strength of Steel Wire for Valve Springs

970711

View Details

TECHNICAL PAPER

Study of Impact of Shot Size Ratio in the Process of Shot Peening on Fatigue Life of Suspension Coil Spring

2014-01-0974

View Details

X