Technical Briefs

Experimental Study of the Slot Overlapping and Tool Path Variation Effect in Abrasive Waterjet Milling

[+] Author and Article Information
A. Alberdi1

e-mail: amaia.alberdi@tecnalia.com

A. Rivero

Department of Manufacturing Engineering,  Industrial Systems Unit, Tecnalia, Paseo Mikeletegi 7, 20009 Donostia-San Sebastián, Spain

L. N. López de Lacalle

Department of Mechanical Engineering,  University of the Basque Country, Faculty of Engineering of Bilbao, Alameda de Urquijo s/n 48013, Bilbao, Spain


Corresponding author.

J. Manuf. Sci. Eng 133(3), 034502 (Jul 01, 2011) (4 pages) doi:10.1115/1.4004320 History: Received July 26, 2010; Revised May 13, 2011; Published July 01, 2011; Online July 01, 2011

In abrasive waterjet (AWJ) milling, a flat surface is obtained when the jet carries out a programmed path, which covers the desired surface. In this process, single slots are overlapped. Thus, the resulting surface, apart from depending on process parameters (pressure, stand-off distance, abrasive mass flow rate, and traverse feed rate), also depends on the lateral feed used between adjacent slots. In this work, an experimental model is obtained, which relates the total cavity depth with the depth and the width of a single slot and with the lateral feed. Alternative tool paths are also studied with the aim of finding new strategies in the future, which will allow to mill with AWJ without using a mask. The results obtained with different tool paths have been explained analyzing the slots interaction and the variation of lateral feed along the entire tool path.

Copyright © 2011 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Number of partial superposed kerf profiles, N

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Figure 2

Tool path #1: (a) contour parallel tool path; (b) lateral feed calculation with SP1; (c) actual surface with SP1; (d) lateral feed calculation with SP2; (e) actual surface with SP2

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Figure 3

Tool path #2: (a) parallel tool path; (b) actual surface; (c) lateral feed calculation on the left side of the triangle; (d) Lateral feed calculation on the right side of the triangle

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Figure 4

(a) Tool path #3 and actual surfaces for each SP; (b) tool path #4 and actual surfaces for each SP; (c) tool path #5 and actual surfaces for each SP



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