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Table 3 Influence degree of surface roughness parameters on workpiece fatigue life [63]

From: Effect of Machined Surface Integrity on Fatigue Performance of Metal Workpiece: A Review

Parameter

Effect

Heights Ra, Rq, Rt, Sa, Sq

Much

Distribution and shape Rsk, Rku, Ssk, Sku

Some

Slopes and curvature RΔq, SΔa

Little

Lengths and peak space Rsm, HSC

Little

Lay and lead Std, Sal

Much