Electroforming of thin shells (Thin Ni shell electroforming for13; applications in structural tests, discussing plating bath composition, Al and wax mandrels preparation)

Raju, BB and Chandra, R and Venkatakrishnaiah, SN and Venkatakrishnaiah, T (1973) Electroforming of thin shells (Thin Ni shell electroforming for13; applications in structural tests, discussing plating bath composition, Al and wax mandrels preparation). Aeronautical Society of India, Journal, 25 . pp. 79-81.

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Abstract

An electroforming process developed for obtaining nickel shells of acceptable quality for structural tests is described. The discussion covers the composition of the plating bath, the preparation of aluminum mandrels (using silver as the releasing agent), the plating of aluminum mandrels, the removal of shells from aluminum mandrels, and the preparation of wax mandrels. The shell specimens obtained by these techniques have identical inner diameters, similar mechanical properties, and are free from residual or internal stresses. The variation of the shell thickness does not exceed 3%. The samples obtained were 10 in. long, 0.004 in. thick, and had an inner diameter of 5.274 inches.

Item Type: Journal Article
Uncontrolled Keywords: Electroforming;Metal shells;Nickel;Thin walled shells;Buckling;Mechanical properties;Shell stability
Subjects: AERONAUTICS > Avionics & Aircraft Instrumentation
Division/Department: Structures Division, Structures Division, Structures Division, Structures Division
Depositing User: Ms. Alphones Mary
Date Deposited: 02 May 2006
Last Modified: 24 May 2010 09:40
URI: http://nal-ir.nal.res.in/id/eprint/1212

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