Abrasive flow machining 1. Introduction Abrasive flow machining (AFM) was firstly developed fifty years ago by Extrude Hone Corporation‚ USA. By using the liquid viscoelastic material with easy flowability made of polymer and abrasive grains‚ AFM can be used to polish‚ deburr and radius for the workpiece. There are three kinds of AFM: one-way AFM‚ two-way AFM and orbital AFM [1]. In this case to manufacture the cylinder heads‚ consider of two-way AFM is much more widely used and its technology
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ABRASIVE JET MACHINING INTRODUCTION:- IT IS A PROCESS OF MATERIAL REMOVAL THROUGH THE ACTION OF A FOCUSED STREAM OF FLUID WITH ABRASIVE PARTICLES. IT IS ESPECIALLY USED FOR MACHINING SUPER ALLOYS‚ CERAMICS; GLASS AND REFRACTORY MATERIAL. IT IS ONE OF THE NON-POLLUTING METHODS AVAILABLE FOR MACHINING HARD MATERIALS TO PRECISION DETAILS. IN ABRASIVE WATER JET MACHINING THE ABRASIVE PARTICLES UTILIZES WATER JETS TO ACCELERATE OR DECELERATE THEIR SPEEDS DEPENDING UPON THE TYPE OF MATERIAL TO BE MACHINED
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8 References 9 Magnetic Abrasive Finishing (MAF) Process Harry P. Coats first patented MAF in 1938. Although US originate this idea‚ most of later period development is done by USSR + Bulgaria. Japanese explore the technology for polishing purpose. Other countries in this field are: India‚ CIS‚ England‚ France‚ and Germany etc. Process details: • In MAP‚ w/p is kept between the two magnets & the air gap in-between the w/p & the magnet is filled with Magnetic Abrasive Particles (MAPs). The
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Prediction System of Magnetic Abrasive Finishing (MAF) On the Internal Surface of Cylindrical Tube Ching-Lien Hung1+‚ Wei-Liang Ku2‚ Lieh-Dai Yang3 Submitted to Materials and Manufacturing Processes March‚ 2010 This paper has not been published elsewhere nor has it been submitted for publication elsewhere. 1+‚ 3 Department of Industrial Engineering and Management‚ Nan Kai Universtiy of Technology‚ Nan Tou‚ Taiwan‚ R.O.C. 2 Department of Information Management‚ Nan Kai Universtiy
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1. Magnetic Abrasive Finishing (MAF) Surface roughness of parts produced by conventional machine tools‚ depends n the machine tool system and the cutting process. It is difficult to produce a smooth surface on complicated profiles at an economic cost by using conventional machining processes. This and the advent of new ‘ difficult-to-machine’ materials like hardened steel‚ nickel‚ cobalt‚ titanium alloys‚ ceramics‚ glass‚ etc.‚ have necessitated the need for new machining techniques
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CYLINDER SUS 304 STEEL TUBES USING MAGNETIC ABRASIVE FINISHING SETUP Abstract Magnetic Abrasive Finishing (MAF) is an advanced finishing method‚ which improves the quality of surfaces and performance of the products. Surface is finished by removing the material in the form of microchips by abrasive particles in the presence of magnetic field. The material is removed in such a way that surface finishing and deburring are performed simultaneously with the applied magnetic field in the finishing zone.
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Machining processes ECM Electrochemical machining (ECM) is a method of removing metal by an electrochemical process. It is normally used for mass production and is used for working extremely hard materials or materials that are difficult to machine using conventional methods.[1] Its use is limited to electrically conductive materials. ECM can cut small or odd-shaped angles‚ intricate contours or cavities in hardened exotic metals‚ such as titanium aluminised‚ Inconel‚ Waspalloy‚ and high nickel
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No. 78307 By Harry Levinson The Abrasive Personality The corporate president stared out the window of his skyscraper office. His forehead was furrowed in anger and puzzlement. His fingers drummed the arm of his chair with a speed that signified intense frustration. The other executives in the room waited expectantly. Each had said his piece. Each had come to his and her own conclusion about the problem. Darrel Sandstrom‚ vice president of one of the corporation’s major divisions‚ was
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Machining Operations In MACHINING‚ the shape‚ size‚ finish and accuracy are obtained by removing the excess material from the workpiece surface. Various surfaces are obtained as an interaction between a workpiece and a cutting tool with the help of a contrivance known as MACHINE TOOL. Prof. S.K. Choudhury‚ Mechanical Engineering Department‚ IIT Kanpur 1 Advantages and Disadvantages of Machining Variety of work materials can be machined. o Most frequently used to cut metals Variety of
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Abrasive Wheels Abrasive Wheel Characteristics An abrasive wheel is defined as :A wheel consisting of bonded abrasive particles with which there is a recognised risk of bursting A coated abrasive disc A wheel made of wood or metal with a surface of abrasive material. Abrasive Wheels Resinoid (Resin based abrasive) Teflon reinforced. Type 27 Reinforced Depressed centre grinding wheel Type 41 Reinforced flat cut of wheel. Type 42 Reinforced Depressed centre cut off wheel Characteristics
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