Development of a Low Cost Deep Cold Rolling (DCR)Set-up

Prabhu, P R and Kulkarni, S M and Sharma , S S (2010) Development of a Low Cost Deep Cold Rolling (DCR)Set-up. In: International Conference on ‘Frontiers in Mechanical Engineering-FIME 2010’, 20-22 May, NITK, Surathkal.

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Abstract

During recent years considerable attention has been paid to the post machining finishing operations such as shot peening, laser shock peening, low plasticity burnishing and deep cold rolling. Though shot peening is traditionally being used for most of the components, deep cold rolling offers several advantages over it such as generation of a deeper ‘case’ of compressive residual stresses and a work hardened microstructure as well as a relatively smoother surface finish. On account of its high productivity, it also saves more on production costs than other conventional processes such as superfinishing, honing and grinding. Deep cold rolling is a process in which a ball or roller is pressed against the surface of a work piece by applying a static pressure. It is a very simple and effective method for improvement in surface finish and can be carried out using existing machines, such as lathe. In the present work, an in-house DCR set-up has been developed. The objective of this work is to develop an economic and efficient DCR set-up to improve the mechanical properties of many of the engineering components which works under heavy and dynamic loads. The set-up is designed and developed in such a way that, it not only deep rolls the surface of the component but also provides support to the component. This is particularly beneficial when the diameter of the component to be rolled is very less. Moreover it is found that the cost of custom made DCR set-up has reduced to 10 - 25% when compared with the commercially available DCR set-up.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Deep cold rolling, DCR set-up, surface roughness, compressive residual stress, surface finish
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 14 Mar 2013 11:18
Last Modified: 14 Mar 2013 11:18
URI: http://eprints.manipal.edu/id/eprint/79033

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