Abstract
The fluid jet polishing (FJP) is an ultra-precision and non-contact type polishing process for generating high-quality surface finish in automotive dies manufactured from ductile materials like AISI H13 die steel. This paper presents a study on FJP polishing of AISI H13 die steel material using a custom-designed 3D-printed Ti6Al4V (Ti64) nozzle and silicon carbide (SiC) abrasive slurry. The study presents an effect of pressure, stand-off distance and polishing time on the surface finish while using water-based abrasive slurry mixed with water-soluble cutting oil. The Central Composite Design (CCD) method was used to develop the experimental plan. ANOVA analysis was performed to develop a regression model and find the contribution of each parameter on the percentage change in surface roughness. The regression model developed for the FJP process was validated by polishing the plate specimen of AISI H13 having
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