The main advantage of the technology compared to other cutting processes is in the cold cutting process. Department of automobile engineering, karpagam university, coimbatore641021. An abrasive is small, hard particle having sharp edges and an irregular shape. Krushna prasad pradhan in partial fulfillment of the requirements for the award of bachelor of technology degree in mechanical engineering at the national institute of.
Water jet machining working principle, advantages and. In the waterjet machining process, water is forced through tiny nozzles under very high pressures to cut through materials such as polymers, brick, and paper. In abrasive water jet machining awjm, abrasive particles are to prepared. Non traditional abrasive machining processesultrasonic, abrasive. Process is free from chatter and vibration as there is no contact between the tool. Principle of water jet machinethis process works on the basic principle of water erosion. Onsite training does not include initial set up of machine and is a maximum of 2 days.
The maximum xy motion travel will establish the cutting window or largest work piece for a specific table. In water jet machining wjm process, water jets alone without abrasives can be used for cutting. It also requires the capability of an accurate and easy pattern transfer, and. The process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces. It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece. The water, in this case, acts like a saw and cuts a narrow groove in the work piece material. Jain, is a comprehensive book for students pursuing mechanical engineering. Scribd is the worlds largest social reading and publishing site. It provides information on updated and advanced machine processes that are. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. Water jet travels at velocities as high as 900 ms approximately mach 3. The ultimate guide to waterjet the modern waterjet waterjet cutting technology is one of the fastest growing major machine tool processes in the world. Water jet and abrasive water jet machining youtube.
When the water stream strikes a work piece surface, the erosive force of water removes the material rapidly. In abrasive jet machining, a focused stream of abrasive particles, carried by high. Abrasive water jet machining awjm is a nontraditional mechanism which operates material exclusive of producing shock and high temperature. Our selection of waterjet machining systems includes cutting windows from 4 feet x 8 feet up to 12 feet x 18 feet. Nontraditional machining mechanical engineering, iitb. Water jet machining wjm is a mechanical energy based nontraditional machining process used to cut and machine soft and nonmetallic materials it involves the use of high velocity water jet to smoothly cut a soft workpiece.
Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Water jet cutting at davidson fabricating307 download. To learn more or download a free trial, click the bobcadcam logo above. Waterjet machining has several advantages over other methods. Principles of abrasive water jet machining radovan kovacevic, andreas w. Introduction since ages, nature has proven that even the hardest materials change their form and shape when water is applied to them. In abrasive jet machining, a focused stream of abrasive particles, carried by high pressure. So the versatility of waterjet, both in materials and in thicknesses is unparalleled. Non traditional abrasive machining processes nptel. The structures created by this phenomenon can be both useful and beautiful. High velocity jet is aimed at a surface under controller condition. This allows you to walk away and perform other tasks while the machine is running. Awjm is applied for several purpose like drill, cutting, cleanup, and engraving operation.
A free powerpoint ppt presentation displayed as a flash slide show on id. Stabilizers are substances that improve the quality of water jet by preventing its fragmentation. There are virtually no limits to what waterjets can cut, which is why companies of all kinds and sizes are realizing greater efficiencies and productivity by implementing waterjets in their. Jun 29, 2017 in water jet machining wjm process, water jets alone without abrasives can be used for cutting. The water used in water jet machining may or may not be used with stabilizers. Paul,department of mechanical engineering, iit kharagpur. The impact of free abrasive particles on the work surface. Non traditional abrasive machining processesultrasonic, abrasive jet and abrasive water jet machining. The intecg2 is based on the same design platform as the techjetx3. Scott wirtanen, regional sales manager at jet edge, also emphasized the versatility of waterjet cutting. Waterjets going to perform almost identically in almost any material.
Composites materials are getting difficult to machine owing to its constituents properties, fiber orientation and relative volume fraction of matrix. Water jet machining free download as powerpoint presentation. Oct 23, 2008 lecture series on manufacturing processes ii by prof. It involves the use of high velocity water jet to achieve material removal or machining. Introduction to nontraditional machining iit kanpur. As the jet approaches a corner, it becomes necessary to slow the motion down so the bottom of the jet can catch up to the top, and be perpendicular to your material. Find water jet cnc machines related suppliers, manufacturers, products and specifications on globalspec a trusted source of water jet cnc machines information. The intecg2 can cut almost any material to 8 thick at maximum cutting speeds with minimum capital outlay. Jan 07, 2012 presentation ofabrasive jet machining 1. Abrasive water jet machiningbasic terms and working. Ultrasonic, abrasive jet and abrasive water jet machining lecture 2. The main attraction of edm over traditional machining processes such as metal cutting.
Nptel provides elearning through online web and video courses various streams. Baileigh cnc water jet water jet cutting machine baileigh. For a good understanding of water jet machining, refer the schematic diagram above. Sharma, department of mechanical engineering, iit roorkee. The mechanism of material removal rate is by erosion. The versatility of the abrasive water jet in cutting almost any engineering material is a very special feature of this technology. Water jet machining machining building engineering. Ultrasonic, abrasive jet and abrasive water jet machining digimat. Abrasive jet micro machining ajmm is a relatively new approach to the fabrication of micro. Water jet machining wjm also called water jet cutting, is a nontraditional machining process in which highvelocity jet of water is used to remove materials from the surface of the workpiece. Generally, it cuts with superior quality than heat cutting methods and with less cost and quality than electrical discharge machining edm. Abrasive jet machining ajm, also known as microabrasive blasting, is a mechanical energy based unconventional machining process used to remove unwanted material from a given workpiece. Introduction and abrasive jet machining notes, mechanical engineeirng, semester notes edurev notes for is made by best teachers who have written some of the best books of. Process is free from chatter and vibration as there is no contact between.
The accuracy and edge quality of awj is similar to laser for thin sheet metal. Water jet cutting a technology on the rise october 2010 page 2 1. A picture of water jet machining process is shown in figure 14. Manufacturing processes i nptel online videos, courses. It uses the kinetic energy of water particle to erode metal at the contact surface.
Jain advanced machining processes, authored by vijay k. Water jet machining wjm and abrasive water jet machining awjm are. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. Techsense saves on scrap parts and cuts down on wasted time by alerting us if the nozzle is clogged or if we run out of abrasive. In this process, a highspeed wellconcentrated water jet is used to cut the metal. If more time is needed it will be billed seperately. Water jet machining water jet machining wjm is a mechanical energy based nontraditional machining process used to cut and machine soft materials. Thin jets of high pressure and high velocity have been used to cut materials such wood, coal, textiles, rocks, concrete, asbestos. Since the process is non thermal, nonchemical and nonelectrical it creates no. Abrasive waterjet cutting is an important shape cutting technique. Robot waterjet can cut an automobile interior in any angles and separate scraps automatically.
This lag can usually be ignored when cutting in a straight line, but becomes critical when near a corner. Abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and. For more information on the wj4x4cnc water jet from baileigh industrial contact a representative today. Wjm can be used to cut softer materials like plastic, rubber or wood. This is to certify that the thesis entitled design and fabrication of abrasive jet machine submitted by mr. Presentations ppt, key, pdf logging in or signing up.
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