Abrasive jet machining hindi,diagram,working and process. Level 1 level 2 level 3 machining parameters nozzle diameter mm 3 4 5 pressure kgfcm2 4 5 6 stand of distance mm. An abrasive is small, hard particle having sharp edges and an irregular shape. The process parameters which govern the ultrasonic machining process are. Abrasive water jet machining is nonconventional process. Jagtap b ab department of mechanical engineering, sinhgad institute of technology and science, narhepune, maharashtra 411041 abstractabrasive jet machining consists of working of the abrasive jet machine ajm.
Abrasive jet micro machining ajmm is a relatively new. The variables that influence the rate of metal removal and accuracy of machining in this process is. 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. Optimization of process parameters in the abrasive. Optimization of process parameters in the abrasive waterjet. Puranik, 1student me production, 2assistant professor, 1mechanical production, 1aits, rajkot, india abstract abrasive water jet machining awjm is one of. The jet velocity is in the range of 150300 ms and pressure is from two to ten times atmospheric pressure.
Abrasive jet machining effect of exit gas velocity and abrasive particle density. It involves the use of high velocity water jet to smoothly cut a soft workpiece. Get an overview of ajm process, mechanism, parameters, equipment, mrr, accuracy, capability, pros and cons, applications, controlling, etc. Abrasive jet machining ajm process, parameters, equipment. Abrasive jet machine introduction abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and shock. Water jet and abrasive water jet machining are material removal processes. 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. Fine abrasive water jet machining of piezoelectric ceramics. Abrasive water jet machining of composite materials. The constant process parameters are shown in table 2. Pdf process characteristics of abrasive jet machining. Design and fabrication of abrasive jet machine semantic scholar. Investigation of machining parameters in abrasive jet. Ajm has become a useful technique for micro machining.
Abrasive water jet machining makes utilisation of the standards of both abrasive jet machining and water jet machining. Abrasive jet machining in ajm, generally, the abrasive particles of around 50. Abrasive jet machining process, parameters, equipment, mrr. Machining composites with abrasive waterjet cutting composite material is a perfect application for abrasive waterjets. Within the electrolyte iron ions would combine with chloride ions to form iron chloride and. To derive the potential benefits of this technology in machining wide range of materials and to enhance the field of application, there is a need to. A abrasive second pot can be added to avoid long downtimes between. Once the abrasive hardness exceeds that of the workpiece, smooth dimples can be generated mainly in a ductile manner, while brittle behaviour is also observed when machining low toughness ceramics with very hard abrasives. The right abrasive delivery system can increase efficiency. The manual toothbrush caused highest abrasion of sound and eroded dentin. On considering the parameters such as particle mean diameter, nozzle length, air density and velocity of air flow, the velocity of particle at the exit of nozzle can be determined. The high velocity stream of abrasive is generated by converting the.
Effect of process parameter in abrasive water jet cutting. Abrasive jet machining ajm is a nontraditional machine. Machining of particulate reinforced mmcs using conventional machining processes such as turning, drilling, etc. The development of abrasive water jet machining awjm technology shows the. Abrasive jet machining ajm especially abrasive water jet. Optimization of abrasive water jet machining process parameters using taguchi grey relational analysis tgra 83 conclude that the performance characteristics of the awjm process namely hydraulic pressure, abrasive mass flow rate, standoff distance and traverse rate are improved together by using gra. Abrasive jet machining a reliable source for waterjet cutting information and leading waterject cutting companies. High velocity jet is aimed at a surface under controller condition. The paper presents an experimentalbased study of abrasive jet machining ajm considering the effect of changing process parameters.
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. Experiments were conducted based on taguchis l 27 orthogonal arrays and the process parameters were. The removal occurs due to the erosive action of the particles striking the workpiece surface. 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.
In abrasive water jet machining, a little stream of finegrained abrasive particles are blended in reasonable extent, which in constrained on a workpiece surface through a nozzle with high velocity of water. Unit i mechanical processes ultrasonic machining elements. Abrasivejet machining ajm modern machining process. The abrasive jet is obtained by accelerating fine abrasive particles in highly pressurized gas carrier gas. An overview of abrasive waterjet machining awjm the following limitations are relevant to abrasive waterjet machining 1,5.
Brushing forces of a manual and two sonic toothbrushes low and high. This machining process has greater efficiency and accuracy among. The different process parameters are studied for the influence of the machining efficiency, including the. Introduction and abrasive jet machining notes, mechanical engineeirng, semester notes edurev is made by best teachers of. Air, nitrogen and carbon dioxide to propel the abrasive particles. Machining performances of electrical discharge machining. Abrasive jet machining effect of mixing ratio on material removal ratemrr. Pdf fine abrasive water jet machining of piezoelectric. 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.
The experiments with regard to parameter optimization were designed with an l18 orthogonal array based on taguchi method. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. Jagtap b ab department of mechanical engineering, sinhgad institute of technology and science, narhepune, maharashtra 411041 abstract abrasive jet machining consists of working of the abrasive jet machine ajm. Hence in the existing work an effort has been made to optimize the cutting parameters in the awjm of ti 6al 4v alloy using gra method. Ajm is considered as a mechanical energy based nontraditional machining process that utilizes a jet of gasabrasive mixture for removing material. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation. Abrasive jet machining ajm utilizes a high velocity jet of abrasives to remove material from work surface by impact erosion. Abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and microabrasive blasting,1 is an abrasive blasting machining process that uses abrasives propelled by. Abrasive water jet cutting is an extended version of water jet cutting. Amara nageswararao, nimra college of engineering technology, andhra pradesh, india. The process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces. The process parameters that control metal removal rate are air quality and pressure, abrasive grain size, nozzle material, nozzle diameter, stand. 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. 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.
In the abrasive water jet machining, the water jet stream accelerates abrasive particles and those particles erode the material. Jan 27, 2014 abrasive jet machining effect of process parameters on mrr 30. 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. Also using the manual control port and manual board the axis of machine. Analyzing and optimizing the process parameters, thus one can find optimized parameters for this process. The relationship between the depth of penetration and jet parameters, including water pressure and traverse speed, etc. Abrasive jet machining effect of process parameters on mrr 30. Student production mechanical, ldrpitr, gujarat, india 2lecturer, mechanical engineering, ldrpitr, gujarat, india abstract abrasive water jet machining awjm is the nontraditional material removal process. A study of effect of process parameters of abrasive jet machining bhaskar chandra1 department of mechanical and automobile engineering, itm university, sector 23 a gurgaon 122017, haryana,india.
Optimization of process parameter in abrasive water jet machining for machining harsh a. Pdf process parameters of abrasive jet machining researchgate. Abrasive jet machining ajm, also called abrasive micro blasting, is a manufacturing process that utilizes a highpressure air stream carrying small particles to impinge the workpiece surface for material removal and shape generation. Find abrasive jet and waterjet cutting machines on globalspec by specifications. Sep 11, 2015 abrasive jet machining effect of exit gas velocity and abrasive particle density.
Abrasive jet machining ajm is a nonconventional machining process where a high pressure air stream. 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 levels of pressure, traverse rate, and abrasive. A study of effect of process parameters of abrasive jet.
It will be a benefit to understand the abrasive waterjet cutting mechanism and optimize the operating parameters. 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. Adr is wellsuited to meet your custom water jet cutting needs with a precise and budgetfriendly solution. During this process, its kinetic energy is converted to pressure energy. 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. An investigation of abrasive water jet machining on graphite.
Composites materials are getting difficult to machine owing to its constituents properties, fiber orientation and relative volume fraction of matrix. Ajm is considered as a mechanical energy based nontraditional machining process that utilizes a jet of gas abrasive mixture for removing material. This water jet machining process is essentially the same process as naturally occurring water erosion, but it occurs much more quickly and forcefully. The jet of abrasive particles is carried by carrier gas or air. International journal of design and manufacturing technology ijdmt, issn 0976 6995print, issn 0976 7002online volume 4, issue 1, january. 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. Abrasive jet and waterjet cutting machines specifications. Apr 06, 2016 in abrasive jet 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 pptpdfseminar faadooengineers. Gas may be supplied either from a compressor or a cylinder. Mahaboob johny4 1pg student,nimra college of engineering technology, andhra pradesh, india 2asst. Abrasive jet water machining of ti 6al 4v was prevailing optimization of machining parameters did not receive much consideration. Investigation of machining parameters in abrasive jet machining on ti6al4v using gra and pca d. Veteranowned adr hydrocut is an expert in high pressure water jet cutting and abrasive jet machining for a vast array of materials including stone, glass, metal and even delicate food materials.
Water jet machining jet cutting equipments, process details, advantages and. An investigation of abrasive water jet machining on. Abrasive jet machining, ceramic, erosion, machinability, material removal behaviour 1 introduction. Since the process is non thermal, nonchemical and nonelectrical it creates no. A a khan 16, studies the different types of abrasives are used in abrasive water jet machining like garnet, aluminium oxide, sic for analysis of performance in water jet machining on glass after experiment they shows the effect of different parameters on.
Jun 24, 2018 abrasive jet machining ajm, also known as abrasive microblasting, pencil blasting and micro abrasive blasting,1 is an abrasive blasting machining process that uses abrasives propelled by a. Common uses include cutting heatsensitive, brittle, thin, or hard materials. Abrasive jet machining is used for drilling, deburring, etching, and cleaning of hard and brittle metals, alloys, and nonmetallic materials e. Review on abrasive jet machining saiprasad sutar a, k. Issn 2348 7968 experimental analysis of glass on abrasive. The abrasive jet machine is a non conventional machining process in which a abrasive particles are made to impinge on the work material at a high velocity. Studies on recharging of abrasives in abrasive water jet. Jan 28, 20 7th sem design and fabrication project by vardini, prithivi raj, subhakhar and sudharsan under the guidance of dr. 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. Specifically it is used to cut intricate shapes or form specific edge. Experimental study on electrochemical abrasive jet machining.
Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation please find the attached file here. 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 is a nontraditional machining process that can machine material without generating heat and. Process parameter optimization of cnc abrasive water jet.
Abrasive water jet machining awjm, an important nonconventionaltype machining, is capable to overcome the limitations as regards to the machining of composites and therefore widely employed to. The new technology combine electrochemical jet machining and abrasive jet machining technology, which. Puranik, 1student me production, 2assistant professor, 1mechanical production, 1aits, rajkot, india abstract abrasive water jet machining awjm is one of the recent nontraditional methods that have been used. In this paper, the optimization of process parameters of two conventional and four advanced machining processes is investigated.
The kinetic energy possessed by the jet is converted into pressure energy which serves as a single point tool. Almost any type of material ranging from hard brittle materials such as ceramics, metals and glass. Abrasive jet machining ajmis a nontraditional machining process that can machine material without generating heat and shock. 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 machining ajm is one of the advanced machining processes mechanical energy based where a high velocity jet of abrasives is utilized to remove material from work surface by impact erosion. Abrasives gas propulsion system supplies clean and dry air. The accustream abrasive pots are a cost effective solution for adding waterjet cutting capacity and replacing existing waterjet cutting machines.
To enhance the cutting capability of awj, abrasive water suspension jet awsj is developed in which the machining is achieved by high velocity suspension jet of polymerized water and abrasives. In water jet machining, high velocity water jet is allowed to strike a given workpiece. A study dealt with awj machining process that applying ga technique for estimating the optimal solutions of the process parameters such as water jet pressure at the nozzle exit, diameter of abrasive waterjet nozzle, traverse of the nozzle, mass flow rat o water and mass flow rate of abrasives was reported by jain et al. Abrasive waterjet machining simulation by sph method. This document is highly rated by students and has been viewed 450 times. 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. It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece.
1339 45 656 964 1078 857 933 496 1344 383 1488 1469 39 212 1391 114 469 250 970 824 821 1053 290 1585 918 754 912 1079 164 375 699 415 1250 510 1470 384 863 56 178 118 1151 948 260 1160 330 698 1009 1483 1097