Journal of Failure Analysis and Prevention

, Volume 9, Issue 2, pp 107–113 | Cite as

Failure Analysis of Mill Shaft Roll

Case History---Peer-Reviewed

Abstract

A strip mill roll shaft failure was investigated. The investigation revealed that the fatigue strength of the shaft had been compromised by a combination of several factors that included: inadequate fillet radius size, the use of dissimilar filler materials to rebuild the shaft surface, the presence of slag inclusions at the weld/alloy interface, and machining defects on the shaft surface. Such failures have occurred repeatedly, and this paper presents a case study investigating the cause of the problem and discusses possible remedial measures to prevent similar occurrences.

Keywords

Cyclic loads Filler Fracture Inclusions Reclamation Rotational bending fatigue Shaft Slag Stress risers Weld Weld porosity 

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Copyright information

© ASM International 2009

Authors and Affiliations

  1. 1.SABIC Technology CenterJubail Industrial CitySaudi Arabia

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