Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/92803
Title: The properties of a repeatedly ballised hole surface
Authors: Lai, M.O. 
Nee, A.Y.C. 
Issue Date: Feb-1993
Source: Lai, M.O.,Nee, A.Y.C. (1993-02). The properties of a repeatedly ballised hole surface. Journal of Materials Processing Tech. 37 (1-4) : 149-156. ScholarBank@NUS Repository.
Abstract: Ballising is a hole sizing and finishing method by cold-working. The process, normally carried out once or twice to improve surface finish, roundness and dimensional tolerance, involves forcing a precision-ground tungsten-carbide ball through a slightly undersized premachined hole. In the present study, the properties of repeatedly ballised holes are investigated. The surface finish of the ballised holes was found to have improved by as much as 97% after three passes of the ballising process. An average roughness value of 0.04 to 0.05 μm Ra was achievable after six passes. As almost all the improvement is accomplished during the first pass, properties such as the diametric change, the surface hardness, the roundness and the fatigue performance of the hole remain approximately constant after the first pass. © 1993.
Source Title: Journal of Materials Processing Tech.
URI: http://scholarbank.nus.edu.sg/handle/10635/92803
ISSN: 09240136
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

31
checked on Feb 17, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.