Doc seminar report magneto abrasive flow machining. International journal of engineering research and general. 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. Effect of process variables in abrasive flow machining. A new precision finishing process called magnetorheological abrasive flow finishing mraff, which is basically a combination of abrasive flow machining afm and magnetorheological finishing mrf, has been developed for nanofinishing of parts even with complicated geometry for a wide range of industrial applications. Magnetostriction means the change in dimensions occurring in ferromagnetic due to an alternating magnetic field. Dixit, analysis of magnetic abrasive finishing with slotted magnetic pole, the 8th int. Hybrid magnetic force assistant abrasive flow machining. Abrasive flow machining afm is a nontraditional machining process that was developed in the usa in the 1960s. Low material removal rate happens to be one serious limitation of almost all processes.
Ultrasonic machining is a nontraditional process, in which abrasives contained in a slurry are driven against the work by a tool oscillating at low amplitude 25100 microns and high frequency 1530 khz. The orbital flow machining process has been recently claimed to be another improvement over afm, which performs threedimensional machining of complex components. Cfd modeling and optimization of magnetorheological. 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. Various types of magnetic assisted abrasive flow machining maafm process reported in this literature are study simulation of magnetic field assisted finishing mfaf process utilizing smart mr polishing tool 1, experimental investigations into internal magnetic abrasive. It has been successfully employed for deburring, radiusing, and removing recast layers of precision components. It also includes micronanofinishing processes viz, abrasive flow finishing, magnetic abrasive finishing, etc. Singh, experimental investigation into magnetic abrasive finishing process, phd thesis, indian institute of technology, kanpur 2005. Modeling of surface generation and process monitoring of afm was conducted by williams and rajurkar during the late 1980s. Abrasive machining process mine crushing equipment. Magnetic fields have been successfully exploited in the past, such as machining force in magnetic abrasive finishing maf, used for micro machining and finishing of components, particularly circular tubes. As such, finishing of conventionally inaccessible surfaces e.
A setup has been developed for a composite process termed magneto abrasive flow machining mafm, and the effect of key parameters on the performance of the process has been studied. Magnetic abrasive flow machining machining abrasive. In recent years, hybrid machining processes have been developed to improve the efficiency of a process by clubbing the advantages of different machining processes and avoiding limitations. Process principle afm is a finishing process that removes a small quantity of material.
In all these processes, except ion beam machining, abrasion of the workpiece takes place in a controlled fashion such that the depth. Abrasive flow machining process principle, parameters and capabilities 2. The magnetic force is generate around the full length of the cylindrical work piece by applying dc current to the solenoid, which provides the magnetic force to the abrasive particles normal to the axis of work piece. Seminar on magneto abrasive flow machining mafm free. These processes can be classified as hybrid machining processes hmpa recent concept in the advancement of nonconventional machining. Magnetic abrasives are emerging as important finishing methods for metals and ceramics. For the optimization of cma2fm process parameters, more than one quality characteristics have to be simultaneously optimized. Ultrasonic machining national institute of technology. It uses semisolid, abrasive laden putty through or across a work piece. Magneto abrasive flow machining is a new development in. It experience same problem with micro nano finishing like small size diameters use in fuel injector etc. This paper discusses the possible improvement in surface roughness and material removal rate by applying a magnetic field around the workpiece in afm. Extrude hone corporation, usa, originally developed the afm process in 1966.
Magnetic abrasive flow machine based super surface. Advanced nontraditional machining processes springerlink. Waves are generated using magnetostrictive effects which are further converted into mechanical vibration. Abrasive flow machining afm is relatively new process among non conventional machining processes.
Part 1 deals with mechanical type advanced machining processes such as ultrasonic machining, water jet machining, abrasive water jet machining. Extrude hone corporation usa developed abrasive flow machining in 1960. In this paper microstructure of the mixture of magnetic and abrasive. Magnetorheological mr polishing fluid comprises of carbonyl iron powder and silicon carbide abrasives dispersed in the viscoplastic base of grease and mineral oil. Development of magneto abrasive flow machining process removed. Opportunities in abrasive waterjet machining ultrasonic abrasive.
Download the seminar report for magneto abrasive flow. Abrasive flow machining extrude hone demonstration. Process used in aerospace, medical and automobile industries. Introduction to advanced machining processes and their classification ultrasonic machining and its modelling and analysis 2. 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. Magnetic abrasive finishing by prof v v mahindrakar duration. In the present study, the abrasive flow machining was hybridized with the magnetic force for productivity enhancement in terms of material removal mr. The other mechanical machining method is abrasive jet machining. Ultrasonic machining is mechanical machining methods.
This results the abrasive mixture and the polymer to act as a selfforming tool which precisely removes the material of the work piece and improves the surface finish. Magneto abrasive flow machining mafm is a new technique in machining. The process under investigation is the combination of afm and maf, and is given the name magneto abrasive flow machining mafm. Pdf development of magneto abrasive flow machining. Effect of process variables in abrasive flow machining jose cherian 1, dr jeoju m issac 2 1 research scholar, karpagam university, eachanari post, coimbatore641021 2 professor, department of mechanical engineering, ma college of engineering kothamangalam, kerala, india. Abrasive flow finishing aff and its modelling magnetorheological.
Magneto abrasive flow machining mechanical project topics. Analysis of magnetorheological abrasive flow finishing. Magnetic abrasive flow machining free download as powerpoint presentation. Low material removal rate happens to be one serious limitation of almost all such processes. Abrasive flow machining afm is one of the latest nonconventional machining processes, which possesses excellent capabilities for finish machining of inaccessible regions of a component. In the present study, the abrasive flow machining was hybridized with the magnetic force. Abrasive flow machining afm is a nonconventional machining method also named as extrude honing and abrasive flow deburring. Since the process is non thermal, nonchemical and nonelectrical it creates no. Mechanical engineering project business administration. This led to the development of advanced finishing techniques, namely abrasive flow machining, magnetic abrasive finishing, magnetic float polishing, magneto rheological abrasive finishing and ion beam machining. Abrasive flow machining afm technology can effectively improve the surface quality of the parts. Such machining falls into the category of erosion by abrasive suspension and lend itself to the finishing of any type of surface.
Development of magneto abrasive flow machining process. 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 water jet cutting wjc and abrasive water jet machining awjm magnetic abrasive finishing maf and its modelling 3. In abrasive flow machining afm, an abrasive mixture and a polymer of special rheological properties is forced through a restricting medium. An overview process input parameters such as extrusion pressure, number of cycles, grit position and type, tooling and fixture designs have impact on afm output responses such as surface finish and material removal afm is capable to produce surface finish ra as good as 0 05 m. Abrasive flow machining afm is a relatively new process among nonconventional machining processes. Abrasive flow machining afm, also known an extrude honing, is an industrial process used in metal working. Abrasive flow machining, alumina powder, brass, magnetic abrasive finishing 1. On this channel you can get education and knowledge for general issues and topics. Development of magneto abrasive flow machining process development of magneto abrasive flow machining process singh, sehijpal. Limited efforts have hitherto been directed towards. Non traditional machining jagadeesha t, assistant professor, med, national institute of technology, calicut ultrasonic machining definition.
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