Learn about waterjets abrasive water jet cutting machine. Introduction abrasive water jet awj cutting is a nonconventional machining process in which, abrasive grains,entrained in a high speed water jet,collide with the work piece and erode it a water jet is used to accelerate the abrasive grains and to assist the material removal process. Since the process is non thermal, nonchemical and nonelectrical it creates no. 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. Abrasive water jet machiningwjm mohit ostwal assistant professor department of mechanical engineering jodhpur institute of engineering and technology, coed, jodhpur 2122016 mohitostwal,asst. Cutting composites with abrasive waterjet systems flow. In water jet machining, high velocity water jet is allowed to strike a given workpiece. The machine is equipped with a gravity feed type of abrasive hopper, an abrasive feeder system, a pneumatically controlled valve and a workpiece. Absence of heat affected zone is the main attribute of the process which. Water jet machining working principle, advantages and. It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece.
Jan 07, 2012 presentation of abrasive jet machining 1. An abrasive is small, hard particle having sharp edges and an irregular shape. 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. A waterjet machine uses a pump to eject water at an extremely high pressure of over 6,000 bars through. This machining process has greater efficiency and accuracy among other nonconventional machining process. Water jet technology has been around since the early 1970s or so, and abrasive jets extended the concept about ten years later. Investigation on glassepoxy composite surfaces machined by.
High velocity jet is aimed at a surface under controller condition. Abrasive water jet machining is nonconventional process. Types of abrasive machining processes grinding honing lapping superfinishing polishing buffing abrasive water jet machining ultrasonic machining. Abrasive water jet cutting is an extended version of water jet cutting. In the present paper, research work involved in the experimental study of abrasive water jet machining of carbon epoxy composite material is described. Wjm can be used to cut softer materials like plastic, rubber or wood. Water jet machining and abrasive water jet machining scribd. Study on carbon epoxy composite surfaces machined by abrasive.
Abrasive jet nozzle there is a difference between a pure water jet nozzle and an abrasive jet nozzle. Engine components aluminum, titanium, heatresistant alloys. 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. The right abrasive delivery system can increase efficiency. Abrasive water jet cutting the following presentation contains facts about how abrasives are used in water jet cutting. Abrasivejet machining ajm modern machining process.
In previous investigations, it has been found that three. In abrasive jet machining, a focused stream of abrasive particles, carried by high pressure air or gas is made to impinge on the work surface through a nozzle and the work material is made to impinge on the work surface through a nozzle and work material is removed by erosion by high velocity abrasive particles. Chuck gallant baris akcora andy grueninger introduction to waterjet fastest growing machining process one of the most versatile machining processes compliments other technologies such as milling, laser, edm, plasma and routers true cold cutting process no haz, mechanical stresses or operator and environmental hazards not limited to machining food industry applications. Study on carbon epoxy composite surfaces machined by. In these processes, the mechanical energy of water and abrasive phases are used to achieve material removal or machining. Seminar abrasive jet machining full report download introduction to abrasive jet machining abrasive jet machining ajm is nontraditional manufacturing process. Abrasive jet machining ajmis a nontraditional machining process that can machine material without generating heat and shock. A waterjet consists of a pressurized jet of water exiting a small orifice at extreme velocity. Sep 15, 2016 for the love of physics walter lewin may 16, 2011 duration. The beam of water accelerates abrasive particles to speeds fast enough to cut through much harder materials. For the love of physics walter lewin may 16, 2011 duration.
The aim of present work is to improve surface finish and studying defects in machined samples. Waterjet technology is a cold cutting process which cuts by using supersonic water, or water and abrasive, to erode material. Apparatus for developing and handling an abrasiveladen gas stream for abrasive jet machining, employing equipment for storage, feeding, and control of abrasive powder in a carrier jet delivered through an upright feed tube at relatively high pressure and velocity. A water jet is used to accelerate the abrasive grains and to assist the material removal process. The use of abrasives to shape parts is probably the oldest material removal process. Abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and micro abrasive blasting, is an abrasive blasting machining process that uses abrasives propelled by a high velocity gas to erode material from the workpiece. They are important because introduction they can be used on all types of materials ranging from soft metals to hardened steels and hard nonmetallic materials such as. Abrasive water jet machining depends on a highpressure of water provided by a pump on the orifice inside the cutting head where it can be converted into a high velocity jet. Water is pressuri zed up to 400 mpa and expell ed through a sapphire nozzl e to form a coherent highv. Seminar abrasive jet machining full report download. Specifically it is used to cut intricate shapes or form. Abrasive water jet processes water jet machining uf mae. The abrasive particles are moved by the water jet rather than the wheel and chip out small pieces just like the abrasive particles in the wheel does. Study on carbon epoxy composite surfaces machined by abrasive water jet machining.
Abrasive water jet machining was introduced to manufacturing ten years ago and has been increasingly used for treating hardtomachine and multilayered materials and as an alternative tool for milling, turning, drilling and polishing. The figure shown is the above abrasive jet machining. Explore abrasive cleaning with free download of seminar report and ppt in pdf and doc format. Water jet machine widely used for cutting plastic, cloth, rubber, paper and leather, because. Also explore the seminar topics paper on abrasive cleaning 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. 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. Ppt water jet machining powerpoint presentation, free download. Such high velocity abrasive jet can machine almost any material. If so, share your ppt presentation slides online with.
Abrasive water jet machining developed in 1974 to clean metal prior to surface treatment of the metal. It involves the use of high velocity water jet to smoothly cut a soft workpiece. An overview of abrasive waterjet machining awjm the following limitations are relevant to abrasive waterjet machining 1,5. Bibliometric analysis of abrasive water jet machining. The filtered gas at a pressure of 2 to 8 kgfcm 2 is supplied to the mixing chamber containing the abrasive powder and. Ppt abrasive water jet machining powerpoint presentation free to download id. This highpressure water now sends through tubing system to the nozzle. Almost any type of material ranging from hard brittle materials such as ceramics, metals and glass.
Abrasive machining involves material removal by the action of hard, abrasive particles. Abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and microabrasive blasting, is an abrasive blasting machining process that uses abrasives propelled by a high velocity gas to erode material from the workpiece. Abrasive water jet cutting torg engineerings facility is the place to count upon when you have the. It consists of a mixing chamber, gas filter, pressure gauge, regulator, and the nozzle. The impact of single solid particles is the basic event in the material removal by abrasive water jets. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. Ppt abrasive waterjet machining powerpoint presentation. In this process, a highspeed wellconcentrated water jet is used to cut the metal. The water passes through flow regulator valve which regulates the flow.
Principle of water jet machinethis process works on the basic principle of water erosion. It can cut almost all material with sufficient speed and quality. Scribd is the worlds largest social reading and publishing site. It also provides information about the largest garnet abrasive manufacturers and exporters in india, like vv mineral. Water jet and abrasive water jet machining csvtu mechanical. Abrasive water jet machining free download as powerpoint presentation. Water jet machining and abrasive water jet machining free download as word doc. Abrasive water jet machining awjm is nonconventional machining process which capable to machine wide range of hardtocut materials. Way more information than you ever wanted on how to fell a tree. Introduction to water jet machining process advantages and disadvantages introduction to water jet machining. Introduction to water jet machining process advantages and. A waterjet utilizes a high pressure stream of water to erode a narrow line in the stock material. Harder materials such as glass, ceramics, concrete, and tough composites can.
Intensifier increases the water pressure from 4 bar to 4000 bars. Water jet machining wjm called hydrodynamic or equipment may be used for applications similar to the laser. A flow waterjet will rarely cause cracking, fraying or delamination. In abrasivejet machining ajm material is removed by the impact of a high velocity stream of gases and abrasive mixture focused on to the workpiece. Free download latest mechanical engineering projects of abrasive jet machine with report and project ppt, download free mechanical project of abrasive jet machining process is the metal removal process and is a process, in which removed from the work piece due to impingement fine grain abrasive by high velocity gas stream. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. A free powerpoint ppt presentation displayed as a flash slide show on id.
By using a hard abrasive such as garnet, an abrasive waterjet can cut a very wide range of metals and other hard materials and thus become a useful technology for machine and fabricating shops. Abrasive water jet abrasive water jet cutting technology uses a jet of high pressure and velocity water and abrasive slurry to cut the target material by means of erosion. The purpose of this study was to optimize and determine the most important abrasive water jet turning awjt operational parameters, such as nozzle diameter 0. 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. Difference between grinding and milling the abrasive grains in the wheel are much smaller. Because of this, waterjets are unlimited in what they can cut. Waterjet machine can use by artist or those institute who teach art work. An abrasive waterjets supersonic erosion can cut nearly any material, and the low contact force eliminates the need for bulky tooling. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. During this process, its kinetic energy is converted to pressure energy. Introduction abrasive water jet awj cutting is a nonconventional machining process in which, abrasive grains,entrained in a high speed water jet,collide with the work piece and erode it. High velocity impact of an abrasive particle causes a tiny brittle fracture on the work surface and the flowing gases carries away the dislodged small workpiece particle. The equipment used for machining the samples was excelcnc abrasive water jet cutting machine equipped with ingersold rand model of water jet pump with the designed pressure of 345 mpa 50,000 psi.
A pump sucks water from the water reservoir and sends it to intensifier. Common uses include cutting heatsensitive, brittle, thin, or hard materials. It uses the kinetic energy of water particle to erode metal at the contact surface. Waterjet cutting seminar report, ppt, pdf for mechanical. Chuck gallant baris akcora andy grueninger introduction to waterjet fastest growing machining process one of the most versatile machining processes compliments other technologies such as milling, laser, edm, plasma and routers true cold cutting process no haz, mechanical stresses or operator and environmental hazards not limited to machining food industry applications history dr. Both technology use the principle of pressuring water to extremely high pressure, and allowing the water to escape through opening typically called the orifice or jewel. In this process chips are not formed like conventional machining processes e. Abrasive water jet machining awjm is non traditional or nonconventional machining process. At the same time the water creates a vacuum while it passes through the mixing chamber to suck abrasive particles to the focusing tube where the awj mixture is created. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation please find the attached file. Global waterjet machine market 20152019 waterjet machines provide an efficient method of producing intricate components of machines with relative ease and precision. Ppt abrasive water jet machining powerpoint presentation. Ajm is mainly used to machine hard raw material, produce complex shape.
A abrasive second pot can be added to avoid long downtimes between. A presentation on arrasive water jet machining and water jet machining combined. Wjm suitable for cutting plastics, foods, rubber insulation, automotive carpeting and headliners, and most textiles. Abrasive water jet machining is the property of its rightful owner. Investigation on glassepoxy composite surfaces machined. Water jet machine widely used for cutting plastic, cloth, rubber, paper and leather, because of the lack of heat it produces kerf very narrow, and if set up correctly produce very. It sends water to an accumulator which store some pressurize water. The accustream abrasive pots are a cost effective solution for adding waterjet cutting capacity and replacing existing waterjet cutting machines. Wjm is suitable for cutting plastics, rubber insulation, and most. Introduction to water jet machining process advantages. With the abrasive jet nozzle, an opening in the side of the nozzle allows for the introduction of the abrasive to the highpressure water stream.
A waterjet machine uses a pump to eject water at an extremely high pressure of over 6,000 bars through a nozzle to cut. Abrasive water jet machining jet engine abrasive scribd. Presentation ofabrasivejetmachining linkedin slideshare. Abrasive cleaning seminar report, ppt, pdf for mechanical. Abrasive jet machining pptpdfseminar faadooengineers. Abrasive water jet machining is a recent nontraditional machining process, and widely used in many industrial applications.
In order to cut harder materials like metals or granite, an abrasive material is. The force of the water and abrasive erodes the material, even if the jet is stationary which is how the material is initially pierced. Abrasive water jet machining wjm mohit ostwal assistant professor department of mechanical engineering jodhpur institute of engineering and technology, coed, jodhpur 2122016 mohitostwal,asst. Abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. Cutting composites with abrasive waterjet systems flow waterjet. What is abrasive jet machining what is abrasive jet 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. The heart of t he abrasi ve waterjet sy stem is the abrasive jet nozzl e as shown in fig. Apr 06, 2016 in abrasive jet machining ajm material is removed by the impact of a high velocity stream of gases and abrasive mixture focused on to the workpiece. The two are mixed in a mixing tube and then exit the nozzle. The finely focused jet of water cuts reliably and precisely in any direction to incredible detail.
1446 663 540 299 1037 1321 1272 587 144 606 1288 931 1426 33 162 450 584 378 1237 1091 1452 904 531 784 242 1319 68 325 847 919 1247 151 383 1000 1386 1007 1172 619 182 473 1322 267