The heart of t he abrasi ve waterjet sy stem is the abrasive jet nozzl e as shown in fig. Abrasive jet machining process, detail abrasive jet machining specifications, abrasive jet machining description,abrasive jet machining applications, features. Student 2associate professor 1,2department of mechanical engineering 1,2government engineering college, valsad abstractabrasive jet machining is the process of material removal process from a. Abrasive water jet machine tools are suddenly being a hit in the market since they are quick to program and could make money on short runs. The developed abrasive jet system is efficient to cut and drill brittle materials, to clean surface, to test erosion resistance of coatings, and others. 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. The high speed stream of abrasives is ed by converting the pressure energy of carrier gas produc or air to its. Air, nitrogen and carbon dioxide to propel the abrasive particles. It is important to understand that abrasive jets are not the same thing as the water jet although they are nearly the same. They may use pressurized water or compressed air as the driving fluid to propel the abrasive particles. 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.
A jet of abrasive particle is passed by carrier gas or air. Omax intellimax software goes beyond fast cutting with our powerful custom reporting tools. Abrasive water jet machining is a recent nontraditional machining process, and widely used in many industrial applications. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. Studies on recharging of abrasives in abrasive water jet machining m. 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. Sure the carpenter can use the back of his crow bar to hammer in nails, but there is a better way. Abrasive water jet cutting is an extended version of water jet cutting. The better performance, and the applications presented above statements confirm that abrasive jet machining ajm will continue to expand. Studies on recharging of abrasives in abrasive water jet. In ajm, material is removed by controlled microcutting action caused by the impact of a concentrated highvelocity 100 300ms jet of abrasive grits accelerated by dehumidified pressurized carrier gas 10 15bar. Abrasive jet machining free download as powerpoint presentation.
Water jet machining working principle, advantages and. Seminar abrasive jet machining full report download. Since the process is non thermal, nonchemical and nonelectrical it creates no. Abrasive jet and waterjet cutting machines are used to cut sheet materials or to remove materials from a surface by generating a focused stream of fluid mixed with abrasive particles. The particles impact the surface at high velocity and produce the effects of cleaning, roughening and activation. Explain working principle of abrasive jet machining with sketch. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. Download full mechanical engineering seminar topics with ppt in doc, pdf or ppt format. High velocity jet is aimed at a surface under controller condition. Fan et al, 25 developed mathematical model for micro hole drilling and microchannel cutting on glass. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. Seminar on abrasive waterjet machiningnonpollution machining machining of eccentric sheave on cnc complete project report ebook free download doc. Abrasive jet machining working, advantages, disadvantages and applications construction in abrasive jet machining, the gases employed are usually air and nitrogen.
Waterjet cutting seminar report, ppt, pdf for mechanical. Abrasive jet machining is one of the unconventional machining processes which, using various operations such as deburring, polishing, cutting etc. From operator experiences the abrasive jets are capable of anywhere from 0. Wjm can be used to cut softer materials like plastic, rubber or wood. Abrasive jet machining on aluminum material youtube. 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. Abrasive jet machining ajm also known as abrasive microblasting or pencil blasting is an abrasive blasting machining process that uses abrasives propelled by high velocity gas to erode material from the work piece. Abrasives gas propulsion system supplies clean and dry air. Abrasive jet machining project report faadooengineers. Explore abrasive cleaning with free download of seminar report and ppt in pdf and doc format. Abrasive water jet cutting of material involves the effect of a high pressure velocity jet of water with induced abrasive particle on to. Abrasive jet machining basic terms and working duration. 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. View and download powerpoint presentations on abrasive jet machining ppt.
Abrasive jet system and its various applications in. In abrasive water jet machining awjm, abrasive particles are to prepared invade on the work material at elevated speed. 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 the process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces. Abrasives used are aluminium oxide, silicon carbide, glass powder and sodium carbonate. Abrasive jet machining ajmis a nontraditional machining process that can machine material without generating heat and shock. This is another process that works on mechanical principle. Abrasive jet machining working, advantages, disadvantages.
So ultimately a machine shop without a water jet, is like a carpenter with out a hammer. Water is pressuri zed up to 400 mpa and expell ed through a sapphire nozzl e to form a coherent highv. Abrasive cleaning seminar report, ppt, pdf for mechanical. 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. They complement existing tools used for either primary or secondary operations and could.
Newer machines are capable of 3d machining thus making it an important in specialty manufacturing. They are compressor, vibrator, mixing chamber, nozzle, machine table, and pressure gauge and regulator. Collection of mechanical engineering seminar topics with ppt. Magnetic abrasive finishingmaf seminar reportpdfppt download. It is found that the aspect ratio increases with an increase in air pressure. Since the aspect ratio is a major interest characteristics of kerf in micro cutting, an experimental investigation is carried out to study the effect of cutting process parameters on the aspect ratio in this study. Krishnaiah chetty manufacturing engineering section, indian institute of technology madras, chennai 600 036, india the objective of this work is to. Awjm is a nonconventional machining process where material is removed. The smaller size particles are used for obtaining good surface finish and precision. Analysis and modeling of micro abrasive air jet cutting. In this process chips are not formed like conventional machining processes e. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation please find the attached file here.
Gas may be supplied either from a compressor or a cylinder. It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece. With the custom reporting tools, that fast part cutting time is translated into a total cost per part estimation and then formatted into a usercustomized form for the client. They compared predictive models results with experimental investigation results and concluded that both are in good in agreement with experimental results. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. Water jet cutting a technology on the rise october 2010 page 5 fig. Common uses include cutting heatsensitive, brittle, thin, or. This abrasive jet machining and study of process parameters mtech mech seminar is about the ajm with its equipments that are used in manufacturing abrasive jet machine. Abrasivejet machining ajm modern machining process. Abrasive jet machining pptpdfseminar faadooengineers. Patel college of engineering, kherva 4sankalchand patel college of engineering, visnagar. Almost any type of material ranging from hard brittle materials such as ceramics, metals and glass.
Find powerpoint presentations and slides using the power of, find free presentations research about abrasive jet machining ppt. 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. Dmitri kopeliovich abrasive blast cleaning is method of the surface preparation by abrasive particles forced by either compressed air or water jet. 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. Gotawala 1pg student, 2associate professor, 3assistant professor 1mechanical department, 1shri sad vidhya mandal institute of technology, bharuch, india.
Abrasive jet machining and study of process parameters. Ajm is mainly used to machine hard raw material, produce complex shape. Abrasive jet machining mechanical engineering students. They are quick to set up, and offer quick turnaround on the machine. The material is placed on a grid above the water tank, which serves the purpose of disbursing and capturing the energy of the.
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. Abrasive jet machining ajm, also known as micro abrasive blasting, is a mechanical energy based unconventional machining process used to remove unwanted material from a given workpiece the process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces. 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. Abrasive jet and waterjet cutting machines selection guide. Ajm has become a useful technique for micro machining.
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