Improvement of the surface quality of incrementally formed parts by means of hydrostatic ball burnishing

Abstract

 The research work presented aims to validate the operation 
of the hydrostatic ball burnishing as a strategy to improve 
the surface quality of an aeronautical component of Inconel 
718, previously shaped by Asymetric Incremetal Sheet Forming 
(AISF). The combination of both processes, burnishing on 
AISF, has a very high level of innovation and is a pioneer in 
its application on an industrial component made of this high 
performance nickel-chromium alloy. The surface quality of 
the incrementally shaped component has been studied to 
subsequently apply a burnishing by means of the hydrostatic 
ball. The results obtained confirm the feasibility of the proposed 
strategy, with a reduction in roughness up to 30%, depending 
on the area treated.