Control of Stand-off-Distance in Abrasive Jet Machining - A Fuzzy Approach

Abstract:

In general Unconventional Machining Processes (UCMs) or Non Traditional Machining Processes (NTMs) are used only when no other Traditional Machining Processes can meet the necessary requirements, both efficiently and economically. This is because using of most of NTMs incurs relatively higher installation, maintenance, operating and tooling costs. Now-a-days, complicated and intricate shaped structures and drilling of square and micro holes are done using the NTMs. Among the several NTMs available, Abrasive Jet Machining (AJM) is one widely used technique. There are several Process Parameters involved in this process and also have a greater impact on the overall machining performances (i.e.) Material removal Rate (MRR). In this paper a novel approach is made to control the Stand-off-Distance (SOD) at an optimal level to achieve higher MRR using Fuzzy Logic. The Fuzzy controller technique such as Type 1 Fuzzy Logic Controller and Interval Type 2 Fuzzy Logic Controller are compared which tends to control the servo mechanism that actuates the nozzle to maintain the altitude between nozzle tip and workpiece. This experimentation will serve the purpose of handling materials with non-uniform surfaces in them.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 106-111
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.106
• Online since: July 2014
• Authors: K. Saran Kumar*, S. Karthick
• Keywords: Abrasive Jet Machining (AJM), Interval Type 2 Fuzzy Logic Controller (IT2FLC), Material Removal Rate (MRR), Non Traditional Machining (NTMs), Stand-Off-Distance (SOD), Type 1 Fuzzy Logic Controller (T1FLC)

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