A Contribution to the Study of Burr Formation in Hydro Abrasive Jet Machining

Abstract

Burr formation in machining or cutting of metal workpieces is a problem that must be understood and solved because burr generally affects part functionality or assemblability and has to be removed by deburring or finishing operations, with additional manufacturing costs. Therefore deburring costs can be reduced or avoided, reducing burr size or avoiding burr formation. Whereas burr formation and deburring processes have been already studied, and some mechanisms of burr formation have been presented in the literature for the traditional processes, few attempts have been made to study burr formation caused by Hydro Abrasive Jet Machining (HAJM). This innovative process has demonstrated its suitability for two-dimensional cutting, when a net shape-finished part is required, because, among the other advantages, it does not generate burr or generates a very small burr.