Recent development of abrasive water jet machining. Ajm is mainly used to machine hard raw material, produce complex shape. Abstract 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 carried in a gas or air medium from a nozzle. Abstract abrasive jet machining ajm is a process that removes material from a workpiece through the use of abrasive particles entrained in a highvelocity gas stream. A thesis submitted to the queensland university of technology for the. Apparatus for developing and handling an abrasive laden gas stream for abrasive jet machining, employing equipment for storage, feeding, and control of abrasive powder in a carrier jet delivered through an upright feed tube at relatively high pressure and velocity. Abrasive waterjet machining awjm is a new machining process, the advantages of which include low cutting temperatures, no heat damage to the material being cut, minimal dust, and low cutting forces. Machining awjm through the ieg in amperes, t is time of current flow or ecm, e. This study investigates the generation, measurement, and definition of edges. The batcher makes possible the batching of abrasive from 0 to 500 gmin1. The abrasive jet inclination angle of erosion rate was measured.
Pdf abrasive jet machining is one of the unconventional machining processes which, using various operations such as deburring, polishing. Although abrasive water jet machining has proved its capabilities for cutting marble material in a most economic and environment friendly manner, is facing serious issues related to dimensional inaccuracy and striation marks. Abrasive water jet machining of composite materials a. Abrasive water jet machining of fiberreinforced composite materials. Abrasive jet machining is flexible and results in low heat generation. Aug 09, 2017 abrasive jet machining basic terms and working duration. Abrasive water jet machining awjm is a nontraditional technology widely used in industries for processing of materials.
In a machining operation, the output parameter is achieved by controlling various input parameters. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation. Specifically it is used to cut intricate shapes or form specific edge. From operator experiences the abrasive jets are capable of anywhere from 0. Seminar abrasive jet machining full report download introduction to abrasive jet machining abrasive jet machining ajm is nontraditional manufacturing process. Pdf as abrasive jet machining ajm is similar to sand blasting and effectively. 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. A machinability study of mild steel using abrasive water jet. A machining operation is basically termed a material removal process, where material is removed in the form of chips. Abrasives gas propulsion system supplies clean and dry air. Abrasive water jet machining injection type ip23622, ms system woma, austria power 22 kw, 50 hz maximum discharge pressure 360 mpa abrasive feeding system vibratory conveyor with heating facility cnc work table twoaxis control x, y british standard sieves, mesh 30, 36, 44, 52, 60, 72, 80, 100, number 120. Abrasive cleaning seminar report, ppt, pdf for mechanical. Abrasive jet machining project report faadooengineers.
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. The abrasive awads 160 is conveyed by the pressure from the hopper to the cutting head. Influence of nozzle design and process parameters on. Machining of brittle materials by ajm is due to brittle. The filtered gas at a pressure of 2 to 8 kgfcm 2 is supplied to the mixing chamber containing the abrasive powder and. Abrasive waterjet awj machining is a new nonconventional machining technology. Abrasive water jet machining if there is an abrasive added it is normally added at the nozzle which has shown in below figure. These techniques utilize the abrasion power of the cutting media i. Abrasive jet machining ajm also known as abrasive microblasting or pencil blasting is an abrasive blasting machining. Assessment of abrasive jet machining of carbon and glass. The abrasive water jet machine technology represents a relatively new, emerging nonconventional way of cutting almost all sorts of materials and shapes. Machining of eccentric sheave on cnc complete project report ebook free download doc abrasive jet machining magnetic abrasive finishingmaf seminar reportpdfppt download. Material removal in this process is due to erosion of a small volume with each particle striking the surface at. Material removal in this process is due to erosion of a small volume with each particle striking the surface at high velocity.
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. Influence of nozzle design and process parameters on surface roughness of cfrp machined by abrasive jet. Abrasive water jet cutting machine starts with a water pump. It consists of a mixing chamber, gas filter, pressure gauge, regulator, and the nozzle. Abstractabrasive jet machining consists of working of the abrasive jet machine ajm. 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. Ajm removes metal from the work piece through the action of. 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. Abrasive jet machining basic terms and working duration. The better performance, and the applications presented above statements confirm that abrasive jet machining ajm will continue to expand. School of mechanical, manufacturing and medical engineering. Nikodijevic university of nis, faculty of mechanical engineering university of nis, faculty of civil engineering and architecture abstract. Process parameter optimization of cnc abrasive water jet.
This machining process has greater efficiency and accuracy among other nonconventional machining process. Air, nitrogen and carbon dioxide to propel the abrasive particles. It is an effective machining process for processing a variety of hard and brittle material. In abrasive jet machining, fine abrasive particles typically 0. It is widely used in fabrication industry to machine the materials like aluminum, mild steel, copper, glass, titanium, hard rock material, graphite, ceramics, composite material, etc. A study of effect of various process parameters on. Investigation of machining parameters in abrasive jet. Abrasive water jet machining of fiberreinforced composite. High velocity jet is aimed at a surface under controller condition. Jan 07, 2012 presentation of abrasive jet machining 1. In abrasive jet machining abrasive particles are made to impinge on work material at high velocity.
Abrasive jet machining ajm, also known as abrasive blasting, is a mechanical energy based non traditional machining process used to remove unwanted material from a given work piece. Awjm is a replacement for the other modern and conventional machining. 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. And has various unique advantages over the other nontraditional cutting process like high machining versatility, minimum stresses on the work piece, high.
Design and fabrication of abrasive jet machine report download. Ajmm is a promising technique to three dimensional. Abrasive jet machining, edge finishing, edge generation, erosion wear abstract the edge with a consistent and precise shape is important for highly stressed mechanical components. This article discusses the operation of principal components, advantages, and disadvantages of the ajm system. The variables that influence the rate of metal removal and accuracy of machining in this process is.
Studies on recharging of abrasives in abrasive water jet. Abrasive jet micro machining ajmm is a relatively new approach to the fabrication of micro structures. Machining of eccentric sheave on cnc complete project report ebook free download doc abrasive jet machining magnetic abrasive finishingmaf seminar report pdf ppt download. Design and fabrication of abrasive jet machine ethesis. It is widely used in fabrication industry to machine the materials. It has been applied to rough working such as deburring and rough finishing, machining of ceramics and electronic devices. Abstract abrasive jet machining ajm is an unconventional machining process which is to drilling of metals and non metals. Explore abrasive cleaning with free download of seminar report and ppt in pdf and doc format. Abrasive jet machining, a flexible process ideal for difficulttoreach areas, is.
In abrasive jet machining ajm, abrasives such as aluminium oxide, silicon carbide are impinged upon the work sample by means of high velocity and pressurized gas or air to erode material from it. Abstract abrasive water jet machining is one of the most nonconventional methods for machining. Abrasive water jet machining is nonconventional process. Gas may be supplied either from a compressor or a cylinder. 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 machine introduction abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and shock. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. In this paper drilling was done on ti6al4v with unlike sods, pressures and nozzle diameters in order to determine the process capability of ajm. A cnc milling machine was modified to an ajm, using the cframe, xy table, stepper motor and other parts of the cnc. Seminar abrasive jet machining full report download. A study of the cutting performance in abrasive waterjet.
Sep 11, 2015 abrasive jet machining effect of exit gas velocity and abrasive particle density. 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. As the particles impact the work surface, they cause small fractures, and the gas stream carries both the abrasive particles and the fractured wear particles away. Abstract abrasive water jet machining is a non conventional machining process in which removal of material takes place by impact erosion of high pressure, high velocity of water and entrained high velocity of grit abrasives on a work piece. However, several nonconventional methods have been adopted for machining composites, in which abrasive water jet machining awjm was proven to be more effective and a preferable technique in machining of fiberreinforced composite material.
The aim of this research work is to make holes on carbon fiber reinforced polymer composite material using a newly. A study of the cutting performance in abrasive waterjet contouring of alumina ceramics and associated jet dynamic characteristics by hua liu b. The research tendency in abrasive water jet machining fields was approximately counted based on the engineering village database in recent years as shown in fig. Common uses include cutting heatsensitive, brittle, thin, or hard materials. Abrasive machining techniques for biomedical device. The material is aluminum 6061t6, ti6al4v titanium alloy and 316l stainless steel. An abrasive is small, hard particle having sharp edges and an irregular shape. Abstractcarbon fiber reinforced polymer composites find extensive applications in the areas of automotive, aircraft and aerospace, medical sciences, and electronics. The water pump pressurizes the water and pumps it from a water tank or other water supply to the nozzle. Waterjet cutting seminar report, ppt, pdf for mechanical. Presentation ofabrasivejetmachining linkedin slideshare. Jet of abrasive particles is carried by carrier gas or air. Apparatus for developing and handling an abrasiveladen gas stream for abrasive jet machining, employing equipment for storage, feeding, and control of abrasive powder in a carrier jet delivered through an upright feed tube at relatively high pressure and velocity.
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. Design and manufacturing of abrasive jet machine for drilling. As abrasive jet machining ajm is similar to sand blasting and. Pdf a study of effect of process parameters of abrasive jet. Abstract abrasive water jet machining awjm is the nontraditional material removal process. 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.
Machining is a non traditional machining process, wherein material removal is effected by the erosive. The high velocity stream of abrasives is generated by converting pressure energy of carrier gas or air to its kinetic energy. 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. The process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish on hard work pieces. A thesis submitted to the queensland university of technology for the degree of doctor of philosophy. Recent development of abrasive water jet machining technology. 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.
Abstract abrasive jet machining ajm or micro blast. It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece. Abstract wide application of abrasive jet machine ajm is found in machining hard and brittle materials. Abrasive water jet machining awjm of titanium ti 6al 4v has. Abrasive jet machining effect of mixing ratio on material removal ratemrr. 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. Abrasive jet machining on aluminum material youtube. 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. Improving the quality characteristics of abrasive water. Review on abrasive jet machining vjer vishwakarma journal. Abrasive water jet machining provides some advantages over. 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.
Abrasive jet machining effect of exit gas velocity and abrasive particle density. Influence of nozzle design and process parameters on surface. The high velocity stream of abrasives is generated by converting pressure energy of carrier gas or air to its kinetic energy and hence high velocity jet. Volume 16 covers machining technologies, including fundamentals, detailed descriptions of specific machining and grinding processes, guidelines for proper selection of cutting tool materials and cutting fluids, and recommendations for improved machining productivity and efficiency. Therefore this technology is regarded as a high potential technology in the field of machining difficulttocut materials. Abrasive jet machining is one of the unconventional machining processes which, using various operations such as deburring, polishing, cutting etc. Abrasive flow machining afm, also known as abrasive flow deburring or extrude honing, is an interior surface finishing process characterized by flowing an. The figure shown is the above abrasive jet machining. In this process chips are not formed like conventional machining processes e. Journal for research volume 03 issue 02 april 2017 issn.
Their usage in automated engineering industry needs good quality in components and excellent surface finish. An overview of abrasive waterjet machining awjm abstract. Also, due to complex nature of abrasive water jet machining process, it is very. The jet inclination angle was measured using 50 micrometers al2o3 abrasive powder launched at an average velocity of 110ms. Explore waterjet cutting with free download of seminar report and ppt in pdf and doc format. 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. A study of effect of various process parameters on abrasive. Compared with other conventional and nonconventional machining technologies, awj offers the following advantages. The rotary axis is for machining axisymmetrical features on workpieces. Abstract abrasive water jet machining awjm is one of the recent nontraditional methods that have been used widely in industry for machining of different materials in a variety of applications.
1490 71 337 1137 1248 1073 1044 200 12 1524 136 742 433 1461 1270 804 745 990 2 856 505 1263 135 1353 1076 1043 550 709 1326 1049 575 905 1070 305 999 1388 809 1093 929 561 1113 1494 605 196 488 489 829