Process parameters of abrasive jet maching ajm are factors that influence its metal removal rate mrr in a machining process, metal removal rate mrr is the volume of metal removed from a given workpiece in unit time. Get an overview of ajm process, mechanism, parameters, equipment, mrr, accuracy, capability, pros and cons, applications, controlling, etc. 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. In this process chips are not formed like conventional machining processes e. In machining of the micro groove, the machining area is controlled by the vshaped fig. Abrasive jet machine introduction abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and shock abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation. Seminar abrasive jet machining full report download introduction to abrasive jet machining abrasive jet machining ajm is nontraditional manufacturing process. Abrasive jet machining ajm is a nonconventional machining process where a highpressure air stream with small abrasive particles to impinge the work surface through a nozzle. An abrasive is small, hard particle having sharp edges and an irregular shape. Abrasive jet machining ajm utilizes a high velocity jet of abrasives to remove material from work surface by impact erosion.
The abrasive water jet machining equipment used consists of a high pressure pump streamline slv 50 plus made by kmt that is fitted on a cnc cutting portal with an abrasive feeding system that varies the feed rate in the range of 1000 gramsmin. Masks are made directly out of cad files reducing the risk of pattern error. Abrasive water jet cutting of material involves the effect of a high pressure velocity jet of water with induced abrasive particle on to. Common uses include cutting heatsensitive, brittle, thin, or hard materials. Abrasive water jet machine awjm is a nontraditional machining process. Fabrication of optimal abrasive water jet machining using. Abrasive jet machining ajm by nishtha chouksey 0201ip121045 introduction abrasive jet machining is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture.
They are quick to set up, and offer quick turnaround on the machine. What links here related changes upload file special pages permanent link page. Abrasive jet machining research abrasive jet, abrasive waterjet, and abrasive slurry jet micromachining are nontraditional microfabrication technologies that utilize high speed jets of microscopic particles to mechanically etch a wide variety of materials without generating heat or. Abrasive jet machining pptpdfseminar faadooengineers. Us4733503a us06858,373 us85837386a us4733503a us 4733503 a us4733503 a us 4733503a us 85837386 a us85837386 a us 85837386a us 4733503 a us4733503 a us 4733503a authority us united states prior art keywords pressurized receptacle tube vertical nozzle prior art date 19860501 legal status the legal status is an assumption and is not a legal conclusion.
Design and fabrication of abrasive jet machine ethesis. And the examples of non conventional processes are abrasive jet machining ajm, electrodischarge machining edm, laser beam machining lbm, abrasive water jet machining awjm etc abrasive jet machining also called, abrasive micro blasting, it is a material removing process and material is removed by a focused steam of abrasive particles. Advantages and disadvantages of ajm are given here. Specifically it is used to cut intricate shapes or form specific edge. The versatility of the abrasive water jet in cutting almost any engineering material is a very special feature of this technology. Introduction and abrasive jet machining notes, mechanical engineeirng, semester notes edurev is made by best teachers of. Water jet machining is a mechanical energy based nontrad itional machining process used to cut and machine soft and nonmetallic materials. 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. It facilitates versatile and effective machining, cutting, and shaping of metals and other materials. Abrasive water jet machining is a recent nontraditional machining process, and widely used in many industrial applications.
Abrasive jet machining process, parameters, equipment, mrr. In general, the overall cost of an awjm system still remains high compared to that of traditional machining techniques, despite a move by the industry to reduce the equipment cost and increase the system reliability. In awjm, abrasive particles like sand sio2, glass beads are added to the water jet to enhance its cutting ability by many folds. Common examples include grinding, honing, and polishing. High velocity jet is aimed at a surface under controller condition. Machining of eccentric sheave on cnc complete project report ebook free download doc abrasive jet machining magnetic abrasive finishingmaf seminar reportpdfppt download. Abrasive jet machine free download as powerpoint presentation. It involves the use of high ve locity water jet to. The vertical flow from the jet nozzle changes to horizontal flow around the stagnation area. The variables that influence the rate of metal removal and accuracy of machining in this process is. Abrasive jet machining ajm is the process of material removal from a work piece by the application of a highspeed stream of abrasive particles carried in a gas medium from a nozzle. It is the process of removal of mater slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Abrasive water jet machining is a process of removal of material by impact erosion of high pressure 15004000 bar, high velocity of water and entrained high velocity of grit abrasives on a work piece. Abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and. Ajm is mainly used to machine hard raw material, produce complex shape. 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. Imanaka, university of tokyo applied pure water for industrial machining. In his work wet abrasive jet machining with a robot guided system allows to prepare local tool areas and to realize a specific design of the cutting edge, as well as advantageous surface qualities. Since the process is non thermal, nonchemical and nonelectrical it creates no. Abrasivejet machining ajm modern machining process.
Abrasive jet machining free download as powerpoint presentation. Some studies on abrasive jet machining a machining operation is basically a material removal process, where material is removed in the form of chips. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. Seminar abrasive jet machining full report download. Abrasive processes are usually expensive, but capable of tighter tolerances and better surface finish than other machining processes. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. Abrasive water jet cutting is an extended version of water jet cutting. Productsservices for abrasive jet machining pdf abrasive jet and waterjet cutting machines 100 companies abrasive jet and waterjet cutting machines are used to cut sheet materials or remove materials from a surface by generating a focused stream of fluid mixed with abrasive particles. What is abrasive jet machining what is abrasive jet machining. 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 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. The following are some of the important process parameters of. They complement existing tools used for either primary or secondary operations and could. 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. Abrasive jet machiningabrasive jet machining an unconventional machining process. Abrasive jet machining on aluminum material youtube. This document is highly rated by students and has been viewed 450 times. Advantages and limitations of abrasive jet machining ajm. Abrasive jet machining basic terms and working duration. Abrasive jet micro machining ajmm is a relatively new approach to the. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. An investigation of different material on abrasive water. Keywords abrasive jet machining, drilling, process parameters, kerf.
Its industrial use depends on its cost effectiveness. Abrasive water jet machining awjm is becoming more widely used. Abrasive jet machining mechanical engineering students. Ajm has become a useful technique for micro machining. Machining composites with abrasive waterjet cutting composite material is a perfect application for abrasive waterjets. Waterjet cutting seminar report, ppt, pdf for mechanical. Abrasives gas propulsion system supplies clean and dry air. The jet nozzle is traversed above the exposed area with supplying the abrasive slurry at a low pressure. Global waterjet machine market 20152019 waterjet machines provide an efficient method of producing intricate components of machines with relative ease and precision. Ppt abrasive waterjet machining powerpoint presentation. Studies on recharging of abrasives in abrasive water jet. A precision waterjet with a taper compensating head will machine 14 thick carbon fiber as fast as 180 inchesminute at 60,000 psi with taper of. Parametric optimization of abrasive water jet machining of.
Ris procite, reference manager, endnote, bibtex, medlars. Air, nitrogen and carbon dioxide to propel the abrasive particles. Abrasive water jet machiningwjm mohit ostwal assistant professor department of mechanical engineering jodhpur institute of engineering. Ppt abrasive waterjet cutting powerpoint presentation. 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. Abrasive jet machining introduction 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. 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.
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. Abrasive jet machining ajm is the process of material removal from a work piece by the. Mrr increases only up to a certain value of abrasive flow rate beyond which it starts. Awjm is a nonconventional machining process where material is removed by impact erosion of high pressure high velocity of water and entrained high velocity of grit abrasives on a work piece 5. Abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and. Scribd is the worlds largest social reading and publishing site. His work concentrates on the requirements and challenges in preparing and designing the cutting edge micro shape using wet abrasive jet machining.
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