Analysis of Failed Feed Slide Guide Ways of Hess Spinning Machine

Venkataswamy, MA and Bhaskaran, TA and Parameshwara, MA and Bhaumik, SK (2003) Analysis of Failed Feed Slide Guide Ways of Hess Spinning Machine. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

Two failed feed slide guide ways of Hess Spinning Machine were forwarded to the laboratory to analyse the cause of failure. The guide ways were found cracked at the counter bore bottom end. The cracking was observed in all the 11 nos fixing holes in one of the guides and in 8 nos fixing holes in the other. In all the cases, the crack was found to have initiated at the fillet of the change of cross section of the fixing holes and propagated to the surface of the guide containing the counter bore top end. Fractographic study revealed that both the guide ways have failed by fatigue. Fatigue cracks have initiated at the fillet of the change of cross section of the fixing holes. The reason for fatigue crack initiation was found to be due to stress concentration at the fillet of change of cross section of the fixing holes.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Feed slide guide ways;fatigue
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Mrs Manoranjitha M D
Date Deposited: 14 Jul 2011 16:39
Last Modified: 14 Jul 2011 16:39
URI: http://nal-ir.nal.res.in/id/eprint/9356

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