Abrasive water jet machining awjm abrasive water jet machining awjm introduction abrasive water jet cutting is an extended version of water jet cutting. Also explore the seminar topics paper on waterjet cutting with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. The process of water jet cutting performance waterjet pwj. Non traditional abrasive machining processes nptel. By utilizing some of earths most common resources, water and stone, we are able to cut almost any material in thicknesses up to 8 200mm.
It also includes micronanofinishing processes viz, abrasive flow finishing, magnetic abrasive finishing, etc. Water jet and abrasive water jet machining youtube. In conventional metal machining, oxygen is usually used. Waterjet cutting seminar report, ppt, pdf for mechanical. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. Mueller and monaghan 2000 have experimentally shown that laser cutting is suitable for high feed rates up to 3000 mmmin, when compared with those obtainable by electrical discharge machining and abrasive water jet cutting.
Principle, equipment, operation, application, advantages and limitations of water jet. All india council for technical education aicte the statutory body and a nationallevel council for technical education, under department of higher education, ministry of human resource development and nptel have signed an mou on july 24, 2018 whereby advanced nptel online certification courses are approved for faculty development programme fdp by aicte. To cut a wider range of materials from tool steel to titanium to foam, a granular typically garnet abrasive is added to the waterjet, increasing the cutting power. Water jet machining free download as powerpoint presentation. Laser beam machining an overview sciencedirect topics. Singh, balbir singh modern machining processes presents unconventional machining methods which are gradually commercial acceptance. Okay welcome to the course on advance machining processes. Ultrahigh pressure water is fired through a ruby or diamond orifice into a mixing chamber which creates a vacuum and draws garnet sand into the water stream.
Non traditional abrasive machining processesultrasonic, abrasive. The intecg2 is based on the same design platform as the techjetx3. In the last session, we have discussed about the abrasive. Chemical machining cm is the controlled dissolution of workpiece material etching by.
A water jet cutter, also known as a water jet or waterjet, is an industrial tool capable of cutting a wide variety of materials using a very highpressure jet of water, or a mixture of water and an abrasive substance. Typical ajm applications include drilling, cutting and. In water jet machining wjm process, water jets alone without abrasives can be used for cutting. Water jet cutting and abrasive water jet machining nptel. It uses the kinetic energy of water particle to erode metal at the contact surface. Developers and researchers are getting close to breaking the barriers that stand in the way of micromachining in the 150 to 200micron range and below. So the versatility of waterjet, both in materials and in thicknesses is unparalleled. Water jet machining a state of art p k ray, associate member with the advent of newer materials and intricate shapes of components, unconventional methods ofmatflrial removal have been developed. Scribd is the worlds largest social reading and publishing site. Processes likeabrasive jet machining water jet machininglaser beam machininghot machiningplasma arc machininghave also been included. May 20, 2017 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. Waterjets going to perform almost identically in almost any material.
Nontraditional machining mechanical engineering, iitb. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. Basic working principle, configuration, specification and classification of. Abrasive water jet cutting of material involves the effect of a high pressure velocity jet of water with induced abrasive particle on to.
Explanations are given as the book follows the development of an abrasive water jet machining process, from tool generation through to machining results, supervision and control. Material is eroded from the work piece at the impact location of the liquid jet. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. This will generate high heat energy and melts and vaporize metal from work piece. Pdf use of water jet has been in existence for over twenty years, but it is yet to reach its full potential in the construction industry. All cnc machining begins with a part program, which is a sequential instructions or coded commands that direct the specific machine functions. This methodical journey through the field is marked by drawings, graphs and tables, many of which are being published here for the first time. Water inlet about waterjet waterjet cutting is an amazing technology. 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. Manufacturing knowledge menu waterjet cutting services. During this machining process, a small portion of metals is also eroded away, leaving a small cater. Nptel, online courses and certification, learn for free. Lecture 37 water jet machining and abrasive water jet. In comparison to jet machining processes, it is quite suitable for cutting small and thin sheets with high cutting rates and can be applied to machine miniature objects unlike other jet machining processes such as water jet, and abrasive water jet machining methods.
It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece. A water jet cutter, also known as a water jet or water jet, is an industrial tool capable of cutting a wide variety of materials using a very highpressure jet of water, or a mixture of water and an abrasive substance. Whether its a large sign for a restaurant, decorative tiles, or intricate design work, the water jet can create it in a wide variety of materials. Pdf nontraditional manufacturing processes by gary f. Welcome to this session on water jet machining under the course advanced manufacturing processes.
Learn for free, pay a small fee for exam and get a certificate. Modern machining processes presents unconventional machining methods which are gradually commercial acceptance. Mar 31, 2017 it is a nontraditional machining process in which no physical tool is used. Classification of metal removal processes and machine tools. Abrasive water jet machining is a recent nontraditional machining process, and widely used in many industrial applications. A waterjet utilizes a high pressure stream of water to erode a narrow line in the stock material. The promise of waterjet technology for micromachining the potential benefits of using waterjet technology to produce parts or part features smaller than 300 microns are compelling. The advantages and disadvantages of waterjet cutting it seems the trends toward local sourcing have stretched much further than homes and restaurants but also into machines and craftwork. Learn about waterjets abrasive water jet cutting machine. 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. The water, in this case, acts like a saw and cuts a narrow groove in the work piece material. The term abrasive jet refers specifically to the use of a mixture of water and abrasive to cut hard materials such as metal or granite, while the terms pure waterjet and water. The material is placed on a grid above the water tank, which serves the purpose of disbursing and capturing the energy of the.
Cnc as it is now known, allows part machining programs to be edited and stored in the computer memory as well as permitting diagnostics and quality control functions during the actual machining. 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. When the water stream strikes a work piece surface, the erosive force of water removes the material rapidly. Abrasive processes grinding super finishing processes production of screw threads gear manufacturing jigs and fixtures for machine shops design and applications of jigs and fixtures non traditional manufacturing ultrasonic machining water jet machining and abrasive water jet electro chemical machining electro discharge machining ebm and lbm. Non traditional abrasive machining processes ultrasonic, abrasive jet and abrasive water jet. Sharma, department of mechanical engineering, iit roorkee. In september 1999, smus school of engineering with.
Similar case happens when ice particles are introduced as in ice jet machining. Abrasive waterjet cutting is essentially an accelerated erosion process. Laser machining offers significant productivity advantages for rough cutoff applications. Compared with mechanical and waterjet cutting techniques, laser machining is slower, but some problems such as tool wear and water penetration can be avoided. Generally, it cuts with superior quality than heat cutting methods and with less cost and quality than electrical discharge machining edm. The method of assessment of the grinding wheel cutting ability in the. Air, nitrogen and carbon dioxide to propel the abrasive particles. Principle of water jet machinethis process works on the basic principle of water erosion.
Water resources engineering larry w mays pdf download bd40bc7c7a textbook. Lecture series on manufacturing processes ii by prof. Our water jet cutting services offer numerous benefits, including. Scott wirtanen, regional sales manager at jet edge, also emphasized the versatility of waterjet cutting. Wjm can be used to cut softer materials like plastic, rubber or wood. Ultrasonic, abrasive jet and abrasive water jet machining. Oct 23, 2008 lecture series on manufacturing processes ii by prof. In electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Next chapter that we will deal with is laser beam machining that is lbm, electron beam machining evm and plasma arc cutting that is pac. Part 2 deals with thermal machining processes for example, electric. The mechanism of material removal rate is by erosion.
Nonconventional machining, electro discharge machining, pdf, 0. Gas may be supplied either from a compressor or a cylinder. Introduction to nontraditional machining iit kanpur. Part 1 deals with mechanical type advanced machining processes such as ultrasonic machining, water jet machining, abrasive water jet machining. Non traditional abrasive machining processesultrasonic, abrasive jet and abrasive water jet machining. Water jet machining wjm is cne f such processes of material removal. Edm machining process is also known as spark erosion machining. Waterjet cutting is the use of a special cutter the uses a high pressure jet stream of water. Download nontraditional manufacturing processes by gary f. Mechanical engineering manufacturing processes ii nptel. This methodical journey through the field is marked by drawings, graphs and tables, many of.
In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. Exercises 6 summary summary the edition addresses issues essential to modern manufacturing, ranging from traditional topics such as casting, forming, machining, and joining, to advanced topics such as the fabrication of nanomaterials. Abrasive waterjet cutting is an important shape cutting technique. Water jet machining working principle, advantages and. Version 2 me, iit kharagpur instructional objectives o list four different non conventional machining processes o differentiate between water and abrasive water jet machining o list different wjm and awjm systems o list ten different modules of awjm systems o list four applications of awjm o list three advantages of awjm o list materials that can be processed by awjm o mention functions of. This lag can usually be ignored when cutting in a straight line, but becomes critical when near a corner. Non traditional manufacturing processes an overview. Modern developments in waterjet cutting technology, software, and the machines that drive them has made waterjet cutting the. Material is vaporized by a laser, and the vapor removed by a jet of gas. Lm37 module 9 non conventional machining version 2 me. Water jet travels at velocities as high as 900 ms approximately mach 3. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. Speed of production with our automated process and stateofthe art, dualhead machine, we can rapidly produce parts and components from virtually any material.
Abrasives gas propulsion system supplies clean and dry air. Water jet machininga state of art p k ray, associate member with the advent of newer materials and intricate shapes of components, unconventional methods ofmatflrial removal have been developed. It is a nontraditional machining process in which no physical tool is used. Lecture notes on modern manufacturing process dr pramod. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Waterjet machine can use by artist or those institute who teach art work. Jun 29, 2017 in water jet machining wjm process, water jets alone without abrasives can be used for cutting. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Waterjet machining uses a high velocity narrow jet of a liquid water to cut materials. The advantages and disadvantages of waterjet cutting. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered. In this process, a highspeed wellconcentrated water jet is used to cut the metal. Water jet cutting a technology on the rise october 2010 page 5 fig. The two key materials used in chemical milling process are etchant and maskant.
Lecture 37 water jet machining and abrasive water jet youtube. Club scolari water resources engineering larry w mays. The accuracy and edge quality of awj is similar to laser for thin sheet metal. Thin jets of high pressure and high velocity have been used to cut materials such wood, coal, textiles, rocks, concrete, asbestos. Water jet cutting at davidson fabricating307 download. The intecg2 can cut almost any material to 8 thick at maximum cutting speeds with minimum capital outlay. Abrasive jet machining water jet machining abrasive water jet machining ultrasonic machining.
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