Abrasive jet machining ajm is nontraditional manufacturing process. Machining of eccentric sheave on cnc complete project report ebook free download doc abrasive jet machining magnetic abrasive. Design and fabrication of abrasive jet machine ethesis. The vertical flow from the jet nozzle changes to horizontal flow around the stagnation area. In awjm, abrasive particles like sand sio2, glass beads are added to the water jet to enhance its cutting ability by many folds. Increased mass flow rate of abrasive will result in a decreased velocity of fluid and there by decreases the available energy for erosion and ultimately the mrr. Inconel718 is one among the family of nickelchromium based super alloys which are having high strength, corrosionresistant used at 217oc to 704oc.
Mixing ratio volume flow rate of abrasive particlevolume flow rate of carrier gas. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. Hence nontraditional methods like abrasive water jet machining and laser machining etc. It involves the use of high ve locity water jet to. An investigation of different material on abrasive water. Abrasive water jet machine awjm is a nontraditional machining process. The following are some of the important process parameters of abrasive jet machining. High velocity jet is aimed at a surface under controller condition. Magnetic abrasive finishingmaf seminar report pdf ppt download. This document is highly rated by students and has been viewed 450 times. In machining of the micro groove, the machining area is controlled by the vshaped fig. Abrasive jet machining ajm process, parameters, equipment.
In this process chips are not formed like conventional machining processes e. For ductile material, cutting wear is also in evidence. 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. They are quick to set up, and offer quick turnaround on the machine. 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. Ppt abrasive waterjet cutting powerpoint presentation. 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. Introduction and abrasive jet machining notes, mechanical engineeirng, semester notes edurev is made by best teachers of. 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. Parametric optimization of abrasive water jet machining of. 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. Imanaka, university of tokyo applied pure water for industrial machining.
Abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and. Gas may be supplied either from a compressor or a cylinder. Latest seminar topic index report,ppt download cutting. Abrasive water jet cutting of material involves the effect of a high pressure velocity jet of water with induced abrasive particle on to materials to be cut. Seminar on abrasive waterjet machining nonpollution machining machining of eccentric sheave on cnc complete project report ebook free download doc. Abrasive jet machining free download as powerpoint presentation. Abrasive jet machining is one of the unconventional machining processes which, using various operations such as deburring, polishing. The versatility of the abrasive water jet in cutting almost any engineering material is a very special feature of this technology. 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. 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. Ramakrishnan mechanical engineering department, indian institute of technology, powai, bombay400 076, india received august, 1991. Get an overview of ajm process, mechanism, parameters, equipment, mrr, accuracy, capability, pros and cons, applications, etc. Explore abrasive cleaning with free download of seminar report and ppt in pdf and doc format. Virtually any material can be cut by using abrasive jet machining method, i.
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. 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. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. Abrasive jet machining effect of mixing ratio on material removal ratemrr. Air, nitrogen and carbon dioxide to propel the abrasive particles. Abrasive cleaning seminar report, ppt, pdf for mechanical. The type of abrasive used was garnet of mesh size 80. 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. 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. Composites materials are getting difficult to machine owing to its constituents properties, fiber orientation and relative volume fraction of matrix. Some studies on abrasive jet machining a machining operation is basically a material removal process, where material is removed in the form of chips. Process parameters of abrasive jet maching ajm are factors that influence its metal removal rate mrr. 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 otherwise affecting material properties.
Sep 11, 2015 abrasive jet machining effect of exit gas velocity and abrasive particle density. Quality of the surface produced during abrasive water jet machining of aluminum has been investigated in recent years. 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. Common uses include cutting heatsensitive, brittle, thin, or hard materials. Due to technical and economic advantages over existing micro machining technologies, abrasive jet machining ajm attracts much attention as a powerful method for dimpling of hard and brittle materials. A free powerpoint ppt presentation displayed as a flash slide show on id. Abrasive jet machining ajm is the process of material removal from a work piece by the. The abrasive jet inclination angle of erosion rate was measured. Krushna prasad pradhan in partial fulfillment of the requirements for the award of bachelor of technology degree in mechanical engineering at the national institute of. Abrasivejet machining ajm modern machining process.
Abrasive water jet machining uses water jet under high pressure as a tool, with added particles of abrasives. It facilitates versatile and effective machining, cutting, and shaping of metals and other materials. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. Aug 09, 2017 the complete monotub tek cultivation walkthrough the easiest way to grow mushrooms indoors. 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. Abrasive water jet machining awjm is becoming more widely used. Abrasive water jet machining wjm mohit ostwal assistant professor department of mechanical engineering jodhpur institute of engineering and technology, coed, jodhpur 2122016 mohitostwal,asst. Water jet machining is a mechanical energy based nontrad itional machining process used to cut and machine soft and nonmetallic materials. 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, 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 abrasivejet machining ajm material is removed by the impact of a high velocity stream of gases and abrasive mixture focused on to the workpiece. The highvelocity abrasive particles remove the material by micro cutting action as well as brittle fracture of the work material. An abrasive is small, hard particle having sharp edges and an irregular shape. The process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces.
The most significant characteristic of the abrasive water jet cutting technology is cold cutting, which does not have a thermal effect on the material. Abrasive jet machining ajm utilizes a high velocity jet of abrasives to remove material from work surface by impact erosion. 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. This is to certify that the thesis entitled design and fabrication of abrasive jet machine submitted by mr. Abrasive jet machining slides the best slides in least cost. Studies on recharging of abrasives in abrasive water jet.
Global waterjet machine market 20152019 waterjet machines provide an efficient method of producing intricate components of machines with relative ease and precision. 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 on aluminum material youtube. Ajm is mainly used to machine hard raw material, produce complex shape. Abrasive jet machining ajm schematic diagram, construction, working, advantages, disadvantages, applications and operations. This study investigated the performance of ajm process for various structural ceramics, and it has been found that both hardness and toughness of. Abrasives gas propulsion system supplies clean and dry air. 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.
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. 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. The variables that influence the rate of metal removal and accuracy of machining in this process is. This is not an example of the work produced by our essay writing service. Waterjet cutting seminar report, ppt, pdf for mechanical. Abrasive water jet machiningwjm mohit ostwal assistant professor department of mechanical engineering jodhpur institute of engineering. Types of abrasive materials different types of abrasive are used in abrasive jet machining like garnet, aluminum oxide, olivine, silica sand, silicon carbide,etc. A waterjet machine uses a pump to eject water at an extremely high pressure of over 6,000 bars through. Apr 06, 2016 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. Abrasive jet machining basic terms and working duration. 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. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation.
Abrasive jet, abrasive waterjet, and abrasive slurry jet micro machining are nontraditional microfabrication technologies that utilize high speed jets of microscopic particles to mechanically etch a wide variety of materials without generating heat or otherwise affecting material properties. 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. Gotawala 1pg student, 2associate professor, 3assistant professor 1mechanical department, 1shri sad vidhya mandal institute of technology, bharuch, india. 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. Abrasive jet machining is nontraditional manufacturing process that can make complex shapes on the surface of the hard and brittle material.
The jet nozzle is traversed above the exposed area with supplying the abrasive slurry at a low pressure. Its industrial use depends on its cost effectiveness. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. Apparatus for abrasive jet machining, including equipment for storage, feeding, and control of abrasive powder in a carrier jet delivered through an upright feed tube at relatively high pressure and relatively high velocity. A cnc milling machine was modified to an ajm, using the cframe, xy table, stepper motor and other parts of the cnc. Abrasive jet machining pptpdfseminar faadooengineers. Applications of abrasive jet machining and at last we just see a glimpse of abrasive jet polishing. Since the process is non thermal, nonchemical and nonelectrical it creates no. Seminar abrasive jet machining full report download. Scribd is the worlds largest social reading and publishing site.
What is abrasive jet machining what is abrasive jet machining. 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. 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. 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 is a process of material removal through the action of a focused stream of fluid with abrasive particles. In a machining process, metal removal rate mrr is the volume of metal removed from a given workpiece in unit time. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. Introduction abrasive flow machining afm was firstly developed fifty years ago by extrude hone corporation, usa. 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. Get an overview of ajm process, mechanism, parameters, equipment, mrr, accuracy, capability, pros and cons, applications, controlling, etc. By using the liquid viscoelastic material with easy flowability made of polymer and abrasive grains, afm can be used to polish, deburr and radius for the workpiece. Seminar abrasive jet machining full report download introduction to abrasive jet machining abrasive jet machining ajm is nontraditional manufacturing process. Abrasive jet machining mechanical engineering students. Abrasive water jet machining is a recent nontraditional machining process, and widely used in many industrial applications. And the material removal models for brittle and ductile materials. Specifically it is used to cut intricate shapes or form. They complement existing tools used for either primary or secondary operations and could. May 26, 2017 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.