Abrasive jet machining pptpdfseminar faadooengineers. Since the process is non thermal, nonchemical and nonelectrical it creates no. Water jet machinemachining project report slideshare. Abrasive jet machining is nontraditional manufacturing process that can make complex shapes on the surface of the hard and brittle material. Advanced nontraditional machining processes 303 work. Roctec composite carbide abrasive waterjet nozzles pdf. 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. 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. Pdf analysis of taper angle in nozzle in abrasive fluid jet. 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. A sufficiently strong gas jet could blow the molten material out of the cut kerfto prevent the temperature rise to the boiling point any further cutting with inert gas jet requires only one tenth of the power required for vaporization note that the ratio latent heat of melting to vaporization is 1.
This forum provides unlimited free download of latest seminar reports and ppt on computer science, electronics, electrical, mechanical engineering, civil, bio medical, chemical, medicine,science in pdf and doc format. Hence, from this, the concept of cnc machines was started and with the aid of these cnc machines, it is possible to make a number of products of the same item in a day. Mechanical engineering seminar topics pdf, ppt, doc, full. Ajm is applied for many applications like cutting, cleaning, polishing, deburring, etching, drilling.
Common uses include cutting heatsensitive, brittle, thin, or. A status report on the conceptual design of a semiautonomous mining system. Composites materials are getting difficult to machine owing to its constituents properties, fiber orientation and relative volume fraction of matrix. Abrasive water jet machining parameters such as water pressure, standoff distance and traverse speed, were considered in the present study. Water jet machine report mechanical report slideshare. The term abrasive jet refers specifically to the use of a mixture of water and. Seminar for water jet assisted roadheaders for rock excavation, sponsored by u. 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. 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. An abrasive is small, hard particle having sharp edges and an irregular shape. Water jet machininga state of art p k ray, associate member with the advent of newer materials and intricate shapes of components, unconventional methods ofmatflrial removal have been developed. Engineering seminar topics, latest seminar topics, popular seminar topics, mechanical seminar topics, computer seminar topics, eee seminar topics, topics for seminars, technology seminars. Download the seminar report for magneto abrasive flow. It is a process of material removal through the action of a focused stream of fluid with abrasive particles.
Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. During mixing process, the abrasive particles are gradually accelerated due to transfer of momentum from the water phase to abrasive phase and when the jet. 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. Machining composites with abrasive waterjet cutting composite material is a perfect application for abrasive waterjets.
The better performance, and the applications presented above statements confirm that abrasive jet machining ajm will continue to expand. Absence of heat affected zone is the main attribute of the process which highlighted it. 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. 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 jet machining ajm is the process of material.
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 effect of exit gas velocity and abrasive particle density. Explain working principle of abrasive jet machining with sketch. It cuts with a very narrow kerf, leaving a clean, finished edge. From operator experiences the abrasive jets are capable of anywhere from 0. Ppt abrasive waterjet cutting powerpoint presentation. This is to certify that the thesis entitled design and fabrication of abrasive jet machine submitted by mr. Ajm has become a useful technique for micro machining.
What is abrasive jet machining what is abrasive jet machining. 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. This is not an example of the work produced by our essay writing service. Abrasive jet machining is an effective machining process for processing a variety of hard and brittle material. Process parameter used is water jet pressure, traverse. Waterjet cutting technology is one of the fastest growing major machine tool processes in. 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. 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 or micro blast machining is a nontraditional machining process.
Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation please find the attached file here. Many consumers express that they do not understand the type of coverage that was sold to them. Anadvantage of waterjet cutting is improved product quality. Machining of eccentric sheave on cnc complete project report ebook free download doc abrasive jet machining magnetic abrasive finishingmaf seminar reportpdfppt download.
Waterjet cutting seminar report, ppt, pdf for mechanical. Krishnaiah chetty manufacturing engineering section, indian institute of technology madras, chennai 600 036, india the objective of this work is to. In awjm, abrasive particles like sand sio2, glass beads are added to the water jet to enhance its cutting ability by many folds. Abrasive water jet machining awjm is a relatively new machining technique. Abrasive water jet cutting is an extended version of water jet cutting. International seminar on manufacturing systems, budapest. The term abrasive jet refers specifically to the use of a mixture of water and abrasive to cut hard. Abrasive water jet machine tools are suddenly being a hit. 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. Abrasive jet machining on aluminum material youtube. Waterjets dont generate heat in the material being cut, so the product has no heat affected zone, dross, or heat warpage, thus eliminating thermal and mechanical distortion.
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. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. Abrasive jet machining effect of mixing ratio on material removal ratemrr. Wet abrasive jet machining to prepare and design the. 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. 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. 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 ajmis a nontraditional machining process that can machine material without generating heat and shock. Download as ppt, pdf, txt or read online from scribd. 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.
Water jet machining and abrasive water jet machining scribd. 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. Water jet machining and abrasive water jet machining free download as word doc. High velocity jet is aimed at a surface under controller condition. Wang, a study of abrasive water jet cutting of metallic coated sheet steels international journal. Abrasive jet machining ajm is a processing nontraditional machine which operators on no physical contact between tool and work piece so there is no thermal stresses and shocks developed. Mechanical engineering projectsfree download 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. 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. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. 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. And has various distinct advantages over the other nontraditional cutting technologies, such as, high machining versatility, minimum stresses on the work piece, high flexibility no thermal distortion, and small cutting forces. 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. This paper is concerned with the requirements and challenges in preparing and designing the cutting edge micro shape using wet abrasive jet machining. Design and fabrication of abrasive jet machine ethesis. Abrasivejet machining ajm modern machining process.
Abrasive jet machining ajm is a nontraditional machining. In the field of industries, it is genuinely possible to make all the products by hand but we make it by devices or machines to save the time. Mechanical engineering seminar topics pdf, ppt, doc, full reports, abstract. 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. They complement existing tools used for either primary or secondary operations and could. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. Magneto abrasive flow machining, ask latest information, magneto abrasive flow machining abstract,magneto abrasive flow machining report,magneto abrasive flow machining presentation pdf,doc,ppt,magneto abrasive flow machining technology discussion,magneto abrasive flow machining paper presentation details,magneto abrasive flow machining, ppt, pdf, report, presentation. The following are some of the important process parameters of.