Title: Parametric analysis and optimisation on abrasive water jet cutting of silicon nitride ceramics

Authors: Debasish Ghosh; B. Doloi; Probal K. Das

Addresses: Production Engineering Department, Jadavpur University, Kolkata 700032, India ' Production Engineering Department, Jadavpur University, Kolkata 700032, India ' Non-Oxide Ceramic and Composite Division, Central Glass and Ceramic Research Institute, Kolkata 700032, India

Abstract: Abrasive water jet cutting (AWJC) is a rapidly developing technology that is used in industry for cutting of ceramic materials. Dense Si3N4, is one of the very hard ceramic materials, used for both room and high-temperature structural application, was machined by abrasive water jet machining technique. The selection of optimum values of important process parameters of AWJC processes such as water pressure, abrasive flow rate, traverse speed and standoff distance can be done based on parametric study and then optimisation of non-linear functions using Grey-Taguchi method has been introduced for determining optimal AWJC process parametric combinations.

Keywords: SiN4; AWJC; abrasive waterjet cutting; surface roughness; MRR; material removal rate; kerf width; grey relational analysis; GRA; Taguchi methods; ANOVA; analysis of variance; parametric optimisation; silicon nitride ceramics; water pressure; abrasive flow rate; traverse speed; standoff distance; process parameters; surface quality.

DOI: 10.1504/IJPTECH.2015.073833

International Journal of Precision Technology, 2015 Vol.5 No.3/4, pp.294 - 311

Received: 05 May 2015
Accepted: 12 Aug 2015

Published online: 23 Dec 2015 *

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