Interplay of process variables in magnetic abrasive finishing. In particular, the effects of the magnetic field and ferrous particles were investigated. In order to improve the finishing efficiency of traditional plane magnetic abrasive finishing maf, we have previously proposed an effective plane maf process combined with an electrolytic process and developed a special compound machining tool for the electrolytic magnetic abrasive finishing emaf. Reducing downtime of repairing for taper roller bearing by magnetic abrasive finishing maf process. This magnetic field results in the alignment of magnetic particle thus making a flexible magnetic abrasive brush which behaves. In all these processes, except ion beam machining, abrasion of the workpiece takes place in a controlled fashion such that the depth of penetration. Pdf on nov 2, 2016, sachin singh and others published magnetic abrasive finishing process and modelling find, read and cite all the.
Magnetic abrasive finishing process is one of the unconventional finishing techniques, which the magnetic abrasive particles are used as a tool to abrade the workpiece surface to achieve extremely high quality surface finish sung yoon et al, 2014. Magnetic abrasive finishing process mechanical project. Reducing downtime of repairing for taper roller bearing by. The process principle and the finishing characteristics of magnetic abrasive finishing of cylindrical pipes using sintered magnetic abrasives are described in this paper. A cylindrical work pieces of brass was finished using magnetic abrasive finishing process on developed apparatus for carrying out testing work. Taguchi technique is used to find optimal process parameters of ultrasonic assisted electrochemical magnetic abrasive finishing uemaf. Magnetic abrasive finishing of aisi52100 kheelan b. Magnetic abrasive finishing involves introduction of magnetic abrasive particle filled between the work piece and the magnetic poles.
Grinding and finishing illegitimi non carborundum ver. The major advantage of this process is the reduced forces and ability to finish complex internal shapes. Magnetic abrasive finishing maf is one of the nonconventional finishing processes, which produces a high level of surface quality and is primarily controlled. Magnetic abrasive finishing maf is one of the advanced finishing processes, which produces a high level of surface quality and is primarily controlled by a magnetic. It was concluded that the pole arrangement can be adjusted to control the strength of the magnetic field, and a stronger field results in the proper rotation of more types of mixedtype magnetic. Magnetic finishing equipment for small parts deburring. Experimental investigations into ultrasonicassisted. Modeling of polishing mechanism in magnetic abrasive. Magnetic abrasive finishing for inner surface of al 6063. The roughness and tolerance band of component achieved using control parameter magnetic abrasive machining mam for polishing of cylinder work piece was developed using available abrasives. Magnetic abrasive finishing maf is a processing technology using magnetic abrasive grain mag under magnetic field to finish surface of workpiece. Also known as magnetic fieldassisted finishing, magnetic abrasive finishing is a finishing process that involves the use of a magnetic field to apply particulate matter onto the surface of a workpiece or object. Development of a new ultrahighprecision magnetic abrasive. Modeling of material removal in ultrasonic assisted.
Magnetic field assisted finishing maf is a process which overcomes these hurdles. Magnetic abrasive finishing maf is a process in which a mixture of nonferromagnetic abrasives and ferromagnetic iron particles is used to do particles in the mixture are magnetically energized using a magnetic field. Magnetic abrasive finishing is a procedure in which work piece surface is smoothened by removing the material as micro. This by introducing vacuum between the magnetic abrasive powder and the work piece surface to be finished. Paper open access process parameter optimization of. Interplay of process variables in magnetic abrasive. The magnetic abrasive finishing process combining the grinding, deburring and polishing process. K m patel2 abstractquality of surface is an important factor to decide the performance of manufacture product. Jul 07, 2019 magnetic abrasive finishing by prof v v mahindrakar duration. Ultrasonic assisted magnetic abrasive finishing uamaf integrates ultrasonic vibrations with magnetic abrasive finishing maf process to finish the workpiece surface more efficiently as compared to maf. Nov 11, 2017 on this channel you can get education and knowledge for general issues and topics. Review of superfinishing by the magnetic abrasive finishing process.
Coats in 1938 japanese did fundamental research related to external finishing and internal finishing of tubes during 1980s, other section. Harish kumar, sehijpal singh 20 magnetic abrasive finishing magnetic abrasive finishing process with pearmant magnet,alternating current, direct current is used for finishing of internal and external surfaces of complicated design. A set of experimental tests three levels and six input parameters. Modeling of material removal in ultrasonic assisted magnetic. The process principle and the finishing characteristics of. It is utilized to do accomplish the function with the help of magnetic force. Aug 16, 2019 also known as magnetic fieldassisted finishing, magnetic abrasive finishing is a finishing process that involves the use of a magnetic field to apply particulate matter onto the surface of a workpiece or object. Drag and drop me to the cart product is out of stock choose the product options first. Parametric optimization of vibration assisted magnetic. Also a fluid jet is introduced directly towards the magnetic abrasive.
An internal magnetic abrasive finishing process was proposed for producing precisely finished inner surfaces of nonferromagnetic tubes used for piping systems 1. Two conditions must be taken into consideration in the finishing surface of workpiece. The magnetic flux density is stronger around the nonmagnetic workpiece along the magnetic brushes than through the workpiece. Magnetic finishing systems work great as a complimentary process in shops where small parts are being manufactured. Modeling of polishing mechanism in magnetic abrasive polishing. The five process parameters considered were the working gap, rotational speed, feed rate, abrasive amount, and abrasive mesh when mafed independently with two abrasive particlessic. Effect on magnetic abrasive machining with different range.
Multiobjective optimization of improved magnetic abrasive. The second one includes magnetorheological finishing mrf, magnetorheological abrasive flow finishing mraff, magnetic float polishing mfp and maf maf 101. The process principles of magnetic abrasive finishing are shown in fig. In this study, experiments based on influential parameters in the maf process including rotational speed, working gap, and abrasive particle size were designed and conducted in the full factorial method in order to achieve the optimum parameters in finishing of steel aisi 321. Seminar on magnetic abrasive finishing by amit raina on prezi. The inner surfaces of workpieces used in critical applications are finished using magnetic abrasive finishing maf process. Magnetic abrasive finishingmaf seminar reportpdfppt. This paper has been focused on the design of the composite tool. Optimization of magnetic abrasive finishing parameters during. In this process work piece is made one of the pole with the magnet as another pole. This article evaluates the finishing performance of ultrasonicassisted doubledisk magnetic abrasive finishing process on two paramagnetic materials copper alloy and stainless steel with different mechanical properties such as flow stress, hardness, shear modulus, and so on. In order to perform the experiments of finishing process, the required setup was designed and confirmed. Modeling and simulation of magnetic abrasive finishing process.
Study on mechanism of magnetic abrasive finishing process using. Singh, experimental investigation into magnetic abrasive finishing process, phd thesis, indian institute of technology, kanpur 2005. Essay on magnetic abrasive finishing process 2408 words. Study of magnetic abrasive finishing for aisi321 stainless. Abrasive flow machining schematic illustration of abrasive flow machining to.
Magnetic abrasive finishing maf is one of the nonconventional finishing processes, which produces a high level of surface quality and is primarily controlled by magnetic field. Parametric study of magnetic abrasive finishing process. The magnetic field polishing showing the twodimensional magnetic field distribution in the finishing zone of the process. The finishing characteristics are influenced by the magnetic abrasive behavior against the inner surface of the. The magnetic fields used in maf include permanent magnetic field and electromagnetic field. It is believed that this process can efficiently perform the ultrahighprecision finishing for producing a smooth surface finish and removing a.
Magnetic abrasive finishing maf is one of the advanced finishing processes, which produces a high level of surface quality and is primarily controlled by a magnetic field. Magnetic abrasive finishing maf process is the one in which material is removed in such a way that surface finishing and deburring are performed simultaneously with the applied magnetic field in the finishing zone. The stationary magnetic abrasive finishing smaf process setup of the optimal electromagnet configuration is applied to finish a titanium cp grade 2 specimen and the average surface. Magnetic abrasive finishing maf process was first mentioned and patent by harry p. A new finishing technique called ultrasonicassisted magnetic abrasive finishing integrates ultrasonic vibration with magnetic abrasive finishing process for finishing of workpiece surface more efficiently as compared to magnetic abrasive finishing in the nanometer range. The sintered magnetic abrasive is a mixture of al 2 o 3. How to build a hinged hoophouse for a raised bed garden duration. This paper presents recent developments in the field of magnetic abrasive finishing and describes the results obtained by various research scholars based on their experimentation in the field of magnetic abrasive finishing. One of such process is magnetic abrasive finishing maf process.
Study of mechanically alloyed magnetic abrasives in magnetic abrasive finishing m. Magnetic abrasive finishingmaf seminar reportpdfppt download. Optimization of magnetic abrasive finishing parameters. Study of new and cost effective finishing processes has always been an area of keen interest to overcome the difficulties of existing finishing process.
Pm pandeymechanism of surface finishing in ultrasonicassisted magnetic abrasive finishing process. In these processes, the forces acting on the workpiece can be controlled by changing magnetic field intensity. The iron particles are increased with the help of magnetic field magnetically. Experimental methods figure 1 schematically shows a magnetic force acting on a ferromagnetic particle in ultrahigh precision magnetic abrasive finishing process of aisi 1085 steel wire material. It can produce surfaces with surface finish in range of 0. Magnetic abrasive polishing map is a super finishing process primarily used for polishing of non magnetic and hard materials like, ceramics and stainless steel. Magnetic fieldassisted finishing, sometimes called magnetic abrasive finishing, is a surface finishing technique in which a magnetic field is used to force abrasive particles against the target surface.
Experimental estimat for stainless steel type 316 plate work piece, cycle between teeth, current, cutting speed, working gap doe and response surface methodology rsm. Composite tools design for electrolytic magnetic abrasive. The purpose of magnetic abrasive finishing is to apply a powder coating. Oct 27, 2009 the magnetic field polishing showing the twodimensional magnetic field distribution in the finishing zone of the process. Misra abstract due to the development of manufacturing technology, final machining of precision parts having high level of surface finish has made the application of magnetic abrasive finishing maf process, increasingly important. Dixit, analysis of magnetic abrasive finishing with slotted magnetic pole, the 8th int. This paper investigates the underlying interplay between the key process parameters of magnetic abrasive finishing maf in improving surface quality. Seminar on magnetic abrasive finishing contents seminar on magnetic abrasive finishing process principle maf is a process in which a mixture of nonferromagnetic abrasives and ferromagnetic iron particles is taken and magnetically energized using a magnetic field. Such tubes are used with nanoscale technologies and meet the demands of the present age in medical and chemical equipment. For these types of applications where a very close control of surface finish and characteristics are required, a new finishing process called magnetic abrasive finishing has been developed. Magnetic abrasive finishing maf can be defined as a process by which surface is finish by removing the material in the. How to make electrolyte reach working area is a problem which should be solved for the emaf process when the composite tool is used, therefore a hollow structure of magnetic pole has. Magnetic abrasive finishing is a machining process where the tooling allowance is remove by media with both magnetic and abrasive properties with a magnetic field acting as a binder of a grain such machining falls into the category of erosion by abrasive suspension and lend itself to the finishing of any type of surface. The stationary magnetic abrasive finishing smaf process setup of the optimal electromagnet configuration is applied to finish a titanium cp grade 2 specimen and the average surface roughness ra is improved from 4.
Analysis and design of a stationary magnetic abrasive. Study of internal finishing of austenitic stainless steel. This paper studies the internal finishing of capillary tubes using a magnetic abrasive finishing process. The magnetic abrasives are joined to each other magnetically between magnetic poles n and s along the lines of magnetic force, forming flexible magnetic abrasive brushes. In this research paper, a new method called mafs process was used for micromachining the inner surfaces of pipes.
In this research, the emaf process is divided into two finishing steps. Apr 23, 2016 this study proposes the improved magnetic abrasive finishing imaf in which a magnetic abrasive finishing process was assisted by ring magnetic field finishing the multicurved surfaces made of alloy sus202 in less processing time. Study of mechanically alloyed magnetic abrasives in magnetic. Magnetic assisted finishing process is a surface finishing technique in which a magnetic field is used to force abrasive particles. Abrasive finishing maf is a nonconventional superfin ishing process in which magnetic abrasive particles inter act with a magnetic field in the. In maf, workpiece is kept between the two poles n and s of a magnet. As such, finishing of conventionally inaccessible surfaces e. The magnetic abrasive finishing process project is about the magnetic abrasive finishing maf process including the combination of nonferromagnetic and ferromagnetic abrasives iron particles. Magnetic abrasive finishing is a machining process where the tooling allowance is remove by media with both magnetic and abrasive properties, with a magnetic. Pdf on nov 2, 2016, sachin singh and others published magnetic abrasive finishing process and modelling find, read and cite all the research you need on researchgate. The finishing force acting on workpiece surface generated by magnetic cluster is an important factor which affects cutting behavior of abrasives in magnetic.
It is also known as vibration assisted magnetic abrasive finishing vamaf. Study on electrolytic magnetic abrasive finishing for. Magnetorheological mr polishing fluid comprises of carbonyl iron powder and silicon carbide abrasives dispersed in the viscoplastic base of grease and mineral oil. This study proposes the improved magnetic abrasive finishing imaf in which a magnetic abrasive finishing process was assisted by ring magnetic field finishing the multicurved surfaces made of alloy sus202 in less processing time. Review of super nishing by the magnetic abrasive finishing process 55 51 wu, j zou, y study on an ultraprec ision plane magnetic abra sive nishing process by use of alternating magnetic. Seminar on magnetic abrasive finishing by amit raina on. Study of mechanically alloyed magnetic abrasives in. Recently, this process has attracted the researchers. Magnetic assisted finishing process is a surface finishing technique in which a magnetic field is used to force abrasive particles against the target surface. Introduction to abrasive machining and finishing processes.
In hybrid process of electrolytic magnetic abrasive finishing emaf, there are usually two structures on the tool design, separated or composited. Pdf magnetic abrasive finishing process and modelling. The gardening channel with james prigioni recommended for you. In maf the tool is composed of a flexible brush of magnetic abrasives and iron particles under the influence of a known magnetic field. This paper examines the applicability of the magnetic abrasive finishing to the internal finishing of largesized bent tubes produced by high frequency induction bending. The mechanism of superfinishing in any finishing process is widely focused by the knowledge of forces involved in the process. In this study, experiments based on influential parameters in the maf process including rotational speed, working gap, and abrasive particle size were designed and conducted in the full factorial method in. On this channel you can get education and knowledge for general issues and topics. Experimental investigations into ultrasonicassisted double. The schematic diagram of the plane magnetic abrasive finishing apparatus is shown in fig. Magnetic abrasive finishing maf is a nonconventional superfinishing process in which magnetic abrasive particles interact with a magnetic field in the. In order to predict the effect of various machining parameters on material. Study on new ultraprecision plane magnetic abrasive. Then basics of magnetic abrasive finishing process, how it will be working and what is it is mechanism, how about whether you are going to finish a magnetic.
Chemoultrasonic assisted magnetic abrasive finishing cumaf is a compound finishing process, which integrates the use of cmpchemomechanical polishing, ultrasonic vibrations and maf magnetic abrasive finishing, to finish surfaces up to nanometer order within a short span of time. Magnetic abrasive finishing is one such unconventional finishing process developed recently to produce efficiently and economically good quality finish on the internal and external surfaces of tubes as well as flat surfaces made of magnetic or non magnetic materials. In recent years, magnetic abrasive finishing maf has become a reliable unconventional technology among researchers in industries due to need for the surface roughness reduction in metals. Magnetic abrasive finishing for inner surface of al 6063 pipe. The magnetic abrasive finishing maf process which was introduced during the late 1940s has emerged as an important nontraditional metal finishing process. Magnetic abrasive finishing maf is the process which capable of precision finishing of such work pieces.
Magnetic abrasive finishing maf process is one of non suitable for different materials and produces high quality level of surface finish machining pressure. Magnetic abrasive finishing as an efficient tool for internal finishing of bent tubes. In the present research work, maf process has been combined with mechanical vibrations to study the effect of vibrations on the surface finishing capabilities of the process. In this research a cylindrical work pieces was finish using a magnetic abrasive finishing process on a apparatus developed for carrying out testing work. Modeling of finishing force and torque in ultrasonicassisted. The maf process removes a very small amount of material by indentation and rotation of magnetic abrasive particles in the circular tracks. Magnetic abrasive finishing abrasive magnetic field. Pdf optimization of magnetic abrasive finishing parameters with. Uemaf integrates the use of electrochemical machining, ultrasonic vibrations and magnetic abrasive finishing. Magnetic abrasive finishing maf is one of advanced finishing processes which offers superior surface finish over conventional. The principle of magnetic abrasive finishing under.