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. What is abrasive jet machining what is abrasive jet machining. Water jet machining working principle, advantages and. Abrasive water jet machiningwjm mohit ostwal assistant professor department of mechanical. Find powerpoint presentations and slides using the power of, find free presentations research about abrasive jet machining ppt. Abrasive water jet machining developed in 1974 to clean metal prior to surface treatment of the metal. Abrasive jet nozzle there is a difference between a pure water jet nozzle and an abrasive jet nozzle. The gas is then passed through an air dryer to remove any residual water vapour. Water jet machining wjm called hydrodynamic or equipment may be used for applications similar to the laser. Cutting composites with abrasive waterjet systems flow waterjet. The versatility of the abrasive water jet in cutting almost any engineering material is a very special feature of this technology. High velocity jet is aimed at a surface under controller condition.
Abrasive water jet machining awjm, an important nonconventionaltype machining, is capable to overcome the limitations as regards to the machining of composites and therefore widely employed to. The purpose of this study is to optimize the operational parameters. The cutter is commonly connected to a highpressure water pump, where the water is then ejected from the nozzle, cutting through the material by spraying it with the jet. Abrasive waterjet machining awjm is a new machining process, the advantages of which include low cutting temperatures, no heat damage to the material being cut, minimal dust, and low cutting forces. The material is placed on a grid above the water tank, which serves the purpose of disbursing and capturing the energy of the. A water jet is used to accelerate the abrasive grains and. For the process that uses water as a carrier, see water jet cutter. Seminar abrasive jet machining full report download. In this article, i will be explaining about the few concepts of water jet machining wjm and abrasive water jet machining awjm which you must know for gate exam.
Abrasive water jet cutting the following presentation contains facts about how abrasives are used in water jet cutting. 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. It also provides information about the largest garnet abrasive manufacturers and exporters in india, like vv mineral. Study on carbon epoxy composite surfaces machined by abrasive. Difference between grinding and milling the abrasive grains in the wheel are much smaller and more numerous than the teeth on a milling cutter. Abrasive jet machining on aluminum material youtube. You can collect the data from the images and the rest theory was presented below. 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. Maintenance on the abrasive jet nozzle is simpler than that of a laser, though probably just as frequent. Ppt abrasive waterjet cutting powerpoint presentation. A waterjet utilizes a high pressure stream of water to erode a narrow line in the stock material. View and download powerpoint presentations on abrasive jet machining ppt.
Gotawala 1pg student, 2associate professor, 3assistant professor 1mechanical department, 1shri sad vidhya mandal institute of technology, bharuch, india. This can be used to remove corrosion from metals, making holes and cutting of a composite material. 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. Introduction to water jet machining process advantages and. Water at 40,000 to 55,000 psi accelerates through a sapphire, ruby or diamond orifice. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. Jan 07, 2012 presentation of abrasive jet machining 1. 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. A free powerpoint ppt presentation displayed as a flash slide show on id.
Abrasive jet machining slides the best slides in least cost. From standard 2d dxf files to advanced 3d shapes, intellimax can import from all major cadcam and artistic drawing programs, allowing you to use your existing workflow. A flow waterjet will rarely cause cracking, fraying or delamination. Precision abrasive jet machines can obtain about the same or higher tolerances than lasers especially as thickness increases. Ppt abrasive waterjet machining powerpoint presentation. Ppt abrasive waterjet machining powerpoint presentation free to download id. A waterjet consists of a pressurized jet of water exiting a small orifice at extreme velocity. In this process chips are not formed like conventional machining processes e. Water jet cutting a technology on the rise october 2010 page 5 fig. A water jet is used to accelerate the abrasive grains and to assist the material removal process. It uses the kinetic energy of water particle to erode metal at the contact surface. Experiments were conducted based on taguchis l 27 orthogonal arrays and the process parameters were. Abrasive water jet awj cutting is a green machining and processing technology that has found extensive applications for a long time because of its being cold, damage free and sensitive cutting. Learn about waterjets abrasive water jet cutting machine.
Abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and. Abrasive water jet machiningbasic terms and working. In a machining operation, the output parameter is achieved by controlling various input parameters. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. Abrasive water jet processes water jet machining uf mae. Apparatus for developing and handling an abrasive laden 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. The process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces.
Surface roughness in cutting wear zone can be reduced by increasing abrasive mixing rate and reducing. When a highvelocity jet of water strikes the surface, the removal of material takes place. Sep 28, 2011 amazing unique production methods youll see for the first time satisfying relaxing moments duration. Robot waterjet can cut an automobile interior in any angles and separate scraps automatically.
In this study he focused on the process of water jet cutting and commented that the abrasive water jet technique is normally used to cut hard materials like titanium, ceramics, kevlar fiber composites and the advantage of. Common examples include grinding, honing, and polishing. Scribd is the worlds largest social reading and publishing site. If abrasive waterjet machining is used, abrasive particles mixed in water stream before entering into the nozzle. 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. Principle of water jet machinethis process works on the basic principle of water erosion. The finely focused jet of water cuts reliably and precisely in any direction to incredible detail.
Global cnc abrasive waterjet cutting machine market research. Since the process is non thermal, nonchemical and nonelectrical it creates no. Ppt water jet machining powerpoint presentation, free download. 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. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. The stream passes through a mixing region where the vacuum, induced by the stream, sucks in. 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. It also provides information about the largest garnet abrasive. In these processes, the mechanical energy of water and abrasive phases are used to achieve material removal or machining. Abrasive water jet cutting torg engineerings facility is the place to count upon when you have the. Some of the job shop industries and manufacturers claim to have successfully used awjm in free form surface generation by milling as shown in the following web. The omax intellimax premium software suite features the broadest file support in abrasive waterjet software. An abrasive is small, hard particle having sharp edges and an irregular shape.
It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. The impact of single solid particles is the basic event in the material removal by abrasive water jets. 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. Water jet machining abrasive water jet machning slideshare. Recent development free download as powerpoint presentation. The abrasive jet machining is the process of impinging the highspeed stream of abrasive particles by highpressure gas or air on the work surface through a nozzle and metal removal occurs due to erosion caused by highspeed abrasive particles. Ppt water jet cutting technique powerpoint presentation free to view id. But to cut harder materials, some abrasive particles mixed with the water for machining and it is called as awjm abrasive water jet machining abrasive. May 20, 2017 it is based on the principle of water erosion.
The apparatus for wjm and awjm were shown in the images below. 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. Striation free area depends on pressure, feed rate and sheet thickness. Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Waterjet machine can use by artist or those institute who teach art work.
Ppt abrasive water jet machining powerpoint presentation. Seminar abrasive jet machining full report download learn mech. Because abrasive waterjets cut by erosive action rather than friction and shearing, it leaves a satin smooth finished edge free of frayed or delaminated areas. Pure water jet is used to machine softer materials. Abrasive water jet machining is nonconventional process.
Abrasive jet process description abrasive waterjet cutting utilizes a high velocity coherent stream of water and abrasive that can be used to cut almost all materials. Abrasive waterjet machining the cutter is commonly connected to a highpressure water pump, where the water is then ejected from the nozzle, cutting through the material by spraying it with the jet. Supported file formats abrasive water jet cutting machine. The adobe flash plugin is needed to view this content. 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. Water jet cutting technology ankit pal me5th sem 0902940012 2. Common uses include cutting heatsensitive, brittle, thin, or. Water jet and abrasive water jet machining youtube. 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. Air, nitrogen and carbon dioxide to propel the abrasive particles. After laser cutting after waterjet cutting waterjets vs. In the present paper, research work involved in the experimental study of abrasive water jet machining of carbon epoxy composite material is described. Water jet machine widely used for cutting plastic, cloth, rubber, paper and leather, because. A presentation on arrasive water jet machining and water jet machining combined.
Water jet cutting at davidson fabricating307 download. Introduction to water jet machining process advantages. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation please find the attached file here. Waterjet cutting seminar report, ppt, pdf for mechanical. Abrasive water jet machining wjm mohit ostwal assistant professor department of mechanical engineering jodhpur institute of engineering and technology, coed, jodhpur 2122016 mohitostwal,asst. Sharma, department of mechanical engineering, iit roorkee. In this process, a highspeed wellconcentrated water jet is used to cut the metal. 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. Abrasive waterjet free download as powerpoint presentation. Ultrasonic machining process usm, water jet machining. Abrasives gas propulsion system supplies clean and dry air. This methodical journey through the field is marked by drawings, graphs and tables, many of which are being published here for the first time. Fast extreme water jet cutter machine working, modern technology waterjet cutting.
Abrasive water jet machiningwjm mohit ostwal assistant professor jodhpur institute of engineering and technology, coed, jodhpur. The abrasive waterjet can be used to drill holes in difficult materials such as inconel or. In previous investigations, it has been found that three. Ajm is mainly used to machine hard raw material, produce complex shape. Abrasive water jet machining was introduced to manufacturing ten years ago and. Abrasive jet machining pptpdfseminar faadooengineers. Abrasive jet machining free download as powerpoint presentation.
Wjm can be used to cut softer materials like plastic, rubber or wood. 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. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. Traditional machining of carbon epoxy composite material is difficult due to excessive tool wear, excessive stresses and heat generation, delamination, high surface waviness, etc. Abrasive processes are usually expensive, but capable of tighter tolerances and better surface finish than other machining processes. Water jet machining free download as powerpoint presentation. Abrasive water jet machining free download as powerpoint presentation.
Introduction to water jet machining process advantages and disadvantages introduction to water jet machining. Abrasive water jet machining awjm is non traditional or nonconventional machining process. This project was done and completed under the guidance of er. Principles of abrasive water jet machining andreas w. Seminar abrasive jet machining full report download introduction to abrasive jet machining abrasive jet machining ajm is nontraditional manufacturing process. Principle, working, equipments, application, advantages and disadvantages. 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. 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.
An investigation of abrasive water jet machining on. Gino dini universit di pisa abrasive water jet machining awjm fluido con abrasivo ugello pezzo profondit di taglio portata di abrasivo. A machining operation is basically termed a material removal process, where material is removed in the form of chips. Abrasive water jet machining awjm removes material from the surface by erosion of finegrained abrasive particles striking the surface at a high velocity 2. An investigation of abrasive water jet machining on graphite. Introduction to water jet it is a tool capable of slicing metal or other materials using a jet of water at high velocity and pressure the process is same as water erosion found in nature but is greatly accelerated and concentrated. Therefore high wear resistance material is used for the nozzle. There is a possibility of erosion at the orifice of the nozzle due to highpressure water jet. In the present research work, the effect of abrasive water jet awj machining parameters such as jet operating pressure, feed rate, standoff distance sod, and concentration of abrasive on kerf width produced on graphite filled glass fiber reinforced epoxy composite is investigated. Thus there is no thermal distortion or hardening of the material. Types of abrasive machining processes grinding honing lapping superfinishing polishing buffing abrasive water jet machining ultrasonic machining.