Water Jet Cutter: An Efficient Tool for Composite Product Development

Babu Rao, D and Baskey, D and Rawat, RS (2009) Water Jet Cutter: An Efficient Tool for Composite Product Development. In: National Conference on Scientific Achievements of SC & ST Scientits & technologists, 14-16 April 2009, Bangalore.

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Water jet cutter is a powerful tool in the present engineering scenario which works on the principle of micro erosion occurring when large volume of water is forced through a nozzle of reduced cross section at high velocity (~Mach No: 3) and elevated pressure (~3000 bar). Water jet cutter was used to cut lumber by forestry engineer Dr. Norman Franz in 1950s.[1] Water jet cutting find applications in diverse industries from mining to aerospace, where it is used for cutting, shaping, carving and reaming. Water jet cutting has many advantages like no local heat generation, smaller kerf width hence less material wastage, faster and cheaper, higher accuracy, automation capability, and less burr and rough edge etc. Advanced Composites Division (ACD) is actively engaged in the development of various aircraft parts for on-going National Programmes like TEJAS, SARAS etc. For the development of composite parts the most important aspect is tooling. To develop a tool, one has to start with master model. The technology used in ACD for composite tooling is based on splash technique. To fabricate master models and moulds, we require templates such as base plates, master model check templates, mould-ribs, reference pad fixing location templates and mould check templates etc. These are cut precisely using water jet cutter. In this paper, importance of the water jet cutter for composite tooling, space structure fabrication and ceramic test coupon generation has been highlighted. Abrasive water jet technique is normally used to cut hard materials like titanium, ceramics, Kevlar fibre composites etc., The advantage of using water jet cutter with abrasives is also addressed.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Water Jet Cutter, Abrasives, Lumber, Micro Erosion.
Subjects: CHEMISTRY AND MATERIALS > Composite Materials
Depositing User: Ms Indrani V
Date Deposited: 24 Jan 2012 04:31
Last Modified: 24 Jan 2012 04:31
URI: http://nal-ir.nal.res.in/id/eprint/10263

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