Ppt abrasive waterjet machining powerpoint presentation. The depth of penetration of the jet erosion in a standard period of time is used to determine equivalent wheel hardness. A study of effect of process parameters of abrasive jet. 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. 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. 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 water jet cutting is offered from prototyping to high. Water is pressurized and ejected in a concentrated jet to direct the flow on the target surface. The better performance, and the applications presented above statements confirm that abrasive jet machining ajm will continue to expand. Precision abrasive jet machines can obtain about the same or higher tolerances than lasers especially as thickness increases. Abrasive water jet awj technology is a machining process in which the material is cut by highpressure water and a mixture of abrasive hard powder of micron size 1234. Abrasive jet machining is nontraditional manufacturing process that can make complex shapes on the surface of the hard and brittle material. Abrasives gas propulsion system supplies clean and dry air.
Abrasive jet machining ajm is a processing nontraditional machine which operates materials without producing shock and heat. Common examples include grinding, honing, and polishing. An investigation of abrasive water jet machining on. An abrasive waterjet is a jet of water that contains some abrasive materials such as aluminium oxide, silicon carbide, sodium.
Pdf abrasive water jet cutting of borosilicate glass. The high velocity abrasive particles remove the material by microcutting. Abrasive waterjet technology information compiled in 2004some links may no longer function please notethis page is in despite need of being updated. Abrasive waterjet machining is different from regular abrasive machines because it does not use solid grit. The product range offered by abrasive water jet cutting machine companies are high in demand. Almost any type of material ranging from hard brittle materials such as ceramics, metals and glass. Abrasive jet machining mechanical engineering online. Abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and microabrasive blasting, is an abrasive blasting machining process. Abrasive jet machining ajm is nontraditional manufacturing process. Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Virtually any material can be cut by using abrasive jet machining method, i. Abrasive jet machine crusher mills, cone crusher, jaw.
Such high velocity abrasive jet can machine almost any material. The paper presents an experimentalbased study of abrasive jet machining ajm considering the effect of changing process parameters. Maybe thats why youll find our airbrasive machines in so many places around the world and why weve earned the trust of so many prestigious institutions. 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. Abrasive processes are usually expensive, but capable of tighter tolerances and better surface finish than other machining processes. Types of abrasive materials different types of abrasive are used in abrasive jet machining like garnet, aluminum oxide, olivine, silica sand, silicon carbide,etc. Gotawala 1pg student, 2associate professor, 3assistant professor 1mechanical department, 1shri sad vidhya mandal institute of technology, bharuch, india. Abrasive jet machining ajmis a nontraditional machining process that can machine material without generating heat and shock. Find abrasive jet and waterjet cutting machines on globalspec by specifications. A free powerpoint ppt presentation displayed as a flash slide show on id. Maintenance on the abrasive jet nozzle is simpler than that of a laser, though probably just as frequent.
Abrasive water jet cutting is an extended version of water jet cutting. 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. Specialized wheel blast machines propel plastic abrasive in a cryogenic chamber. Abrasive jet machining companies services iqs directory. Experiments have been performed on effect of jet pressure, abrasive flow rate and work feed rate on smoothness of the surface produced by abrasive water jet machining of carbide of grade p25. The high velocity abrasive particles remove the material by microcutting action as well as brittle fracture of the work material.
Get an overview of ajm process, mechanism, parameters, equipment, mrr, accuracy, capability. 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. An abrasive is small, hard particle having sharp edges and an irregular shape. In this video we have explained working of arasive jet machining process, we have seen the working principle, equipments used.
Air, nitrogen and carbon dioxide to propel the abrasive particles. Abrasive jet machining on aluminum material youtube. Abrasive jet and waterjet cutting machines specifications. Principles of abrasive water jet machining springerlink. Gas may be supplied either from a compressor or a cylinder. Because the abrasive is added at the nozzle, through the mixing tube, it is simple to switch between water only and abrasive waterjet cutting. This water jet machining process is essentially the same process as naturally occurring water erosion, but it occurs much more quickly and forcefully. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. Experiments were conducted based on taguchis l 27 orthogonal arrays and the process parameters were. Omax intellimax software goes beyond fast cutting with our powerful custom reporting tools.
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 or air medium from a nozzle. 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. 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. Abrasive jet machining ajm is the process of material removal from a work piece by the application of a high speed stream of abrasive particles suspended in a gas medium from a nozzle. The top countries of suppliers are china, india, from which the percentage of abrasive jet machine supply is 99%, 1% respectively. 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. Abrasive jet machining project for mechanical engineering degree and. Common uses include cutting heatsensitive, brittle, thin, or. High velocity jet is aimed at a surface under controller condition. The following are some of the important process parameters of. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. Abrasive jet machining in abrasive jet machining ajm, abrasive particles are made to impinge on the work material at a high velocity. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. 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.
Abrasive jet machining effect of mixing ratio on material removal ratemrr. Abrasive jet machining and study of process parameters 1 abrasive jet machine. By using water as an abrasive, operators bypass the two usual disadvantages of a regular abrasive machine. This methodical journey through the field is marked by drawings, graphs and tables, many of. Thus there is no thermal distortion or hardening of the material.
Ajm is applied for many purposes like drilling, cutting, cleaning, and etching operation. Abrasive jet machining uses a water jet cutter capable of slicing into metal or other materials using an extremely high pressure stream of water and abrasive materials. 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 cleaning seminar report, ppt, pdf for mechanical. Newer machines are capable of 3d machining thus making it an important in specialty manufacturing. 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 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 jet machining is the material removal process where the material is removed. A wide variety of abrasive jet machine options are available to you, there are 580 suppliers who sells abrasive jet machine on, mainly located in asia.
Hello everyone welcome to engineers academy topics covered. Ajm abrasive jet machining one of the least expensive of the nontraditional processes. Abrasive jet machiningabrasive jet machining an unconventional machining process. It is a process of material removal through the action of a focused stream of fluid with abrasive particles. From operator experiences the abrasive jets are capable of anywhere from 0. Many links lead to dead ends and information is datedwere working to revise it. Maintenance on the abrasive jet nozzle is simpler than that of a. Learn about waterjets abrasive water jet cutting machine.
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. Abrasive jet machining basic terms and working duration. Ajm has become a useful technique for micro machining. Waterjet fabricating provides water jet machining at prices much lower than traditional machine shops. 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. 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. Gino dini universit di pisa abrasive water jet machining awjm fluido con abrasivo ugello pezzo profondit di taglio portata di abrasivo. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. 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. Abrasive jet machining is a kind of blasting process and one of the most hopeful micro machining process for hard and brittle materials like.
Nozzles directs abrasive jet in a controlled manner onto work material. Get comprehensive details of abrasive waterjet cutting machine, abrasive water jet cutting machine manufacturers, suppliers and exporters. To cut a wider range of material, a granular abrasive typically garnet is added to the high pressure waterjet stream, increasing the cutting power. 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 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. The size of the wheel blast machine, and the number and power of the wheels vary considerably depending on the parts to be blasted as well as on the expected result and efficiency. Since the process is non thermal, nonchemical and nonelectrical it creates no. Ppt abrasive water jet machining powerpoint presentation. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation please find the attached file here. Abrasivejet machining ajm modern machining process. Seminar abrasive jet machining full report download learn mech. Abrasive jet machining ajm utilizes a high velocity jet of abrasives to remove material from work surface by impact erosion. We didnt just invent micro blasting technology, we created a complete micro abrasive system that is built to do the job, and built to last. Abrasive jet machining effect of exit gas velocity and abrasive particle density.