Nptel video lecture topic list created by linuxpert. Sep 11, 2015 abrasive jet machining effect of exit gas velocity and abrasive particle density. Abrasive jet machining ajm is commonly used for cutting, cleaning, drilling and etching operation. Nptel, online courses and certification, learn for free. Non traditional abrasive machining processesultrasonic, abrasive. Nptel video courses pack pdf format nptel user pack. High velocity jet is aimed at a surface under controller condition. Kinematics of machines nptel online videos, courses. Lecture 15 water jet and abrasive water jet machining lecture 16 ultrasonic machining process usm lecture 17 mechanism, processes variants and applications of usm. Advantages and limitations of abrasive jet machining ajm. For ductile material, cutting wear is also in evidence. Introduction to abrasive machining and finishing processes. Processes ultrasonic, abrasive jet and abrasive water jet machining. Nptel provides elearning through online web and video courses various.
Krushna prasad pradhan in partial fulfillment of the requirements for the award of bachelor of technology degree in mechanical engineering at the national institute of. 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. Advanced machining processes dvd media storage type. Abrasive jet machining mechanical engineering students. It deals with the latest machining processes named as advanced machining processes.
Search by nptel course id, course name, lecture title, coordinator. Sep, 2016 on this channel you can get education and knowledge for general issues and topics. Advanced machining processes by hassan abdelgaward elhofy. Autoplay when autoplay is enabled, a suggested video will automatically play next. The jet velocity is in the range of 150300 ms and pressure is from two to ten times atmospheric pressure. Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. In electro chemical machining an electrolyte acts as a current carrier. Similar case happens when ice particles are introduced as in ice jet machining. Wjm can be used to cut softer materials like plastic, rubber or wood. Up next deep well in the world agriculture well big water pump systems duration. Non traditional abrasive machining processesultrasonic, abrasive jet and abrasive water jet machining.
Advanced machining processes video course course outline there is a need for machine tools and processes which can accurately and easily machine the most difficultto machine. Today we will learn about abrasive jet machining principle, working, equipments, application, advantages and disadvantages with its diagram. Composites materials are getting difficult to machine owing to its constituents properties, fiber orientation and relative volume fraction of matrix. 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 product range offered by abrasive water jet cutting machine companies are high in demand. Principles of abrasive water jet machining radovan kovacevic, andreas w. Process parameters of abrasive jet maching ajm are factors that influence its metal removal rate mrr. Due to technical and economic advantages over existing micro machining technologies, abrasive jet machining ajm attracts much attention as a powerful method for dimpling of hard and brittle materials. Get an overview of ajm process, mechanism, parameters, equipment, mrr, accuracy, capability, pros and cons, applications, controlling, etc. Nptel provides elearning through online web and video courses.
In the process, workpiece is taken as anode and tool is taken as cathode. Mechanical processes like ultrasonic machining, abrasive jet machining, water jet machining, abrasive water jet machining, etc. Non traditional abrasive machining processes ultrasonic, abrasive jet and abrasive. Abrasive jet machining introduction 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.
Apr 06, 2016 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. An abrasive is small, hard particle having sharp edges and an irregular shape. Nontraditional and hybrid machining processes by hassan abdelgaward elhofy book is a good reference for both nontraditional and hybrid machining processes. Abrasives gas propulsion system supplies clean and dry air. In this video we have explained working of arasive jet machining process, we have seen the working principle, equipments used.
You can find them according to your branch and subject in the below link national mission on education through ict this was initiated by iit madras. Okay welcome to the course on advance machining processes. Ultrasonic, abrasive jet and abrasive water jet machining nptel. Principle and working and applications of abrasive jet machining 6th semester, me sub. Ultrasonic, abrasive jet and abrasive water jet machining video.
Water jet and abrasive water jet machining youtube. 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 is used for drilling, deburring, etching, and. Lecture 14 abrasive jet machining ajm lecture 15 abrasive water jet machining awjm lecture 16 ultrasonic machining usm lecture 17 edm, wireedm, edg, eddg, awedg lecture 18 elastic emission machining lecture 19 pmedm and ecd and elid, ech lecture 20 abrasive flow finishing. Machine learning for engineering and science applications. Abrasive jet machining companies services iqs directory. Abrasive jet machine introduction abrasive jet machining ajm is a non traditional machining process that can machine material without generating heat and shock. How to download all of the lectures in pdf for a course in.
Non traditional abrasive machining processes ultrasonic, abrasive jet and. 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. Mechanical engineering online courses with video lectures. Abrasive jet machining free download as powerpoint presentation. Nptel syllabus advanced machining processes video course course outline this course on advanced machining processes is also known as unconventional machining processes, modern machining processes, and new technology.
Notes on electro chemical machining ecm me mechanical. Nptel syllabus advanced manufacturing processes video course course outline the course covers the details of the advanced machining theory and practices, advanced machining processes. Gotawala 1pg student, 2associate professor, 3assistant professor 1mechanical department, 1shri sad vidhya mandal institute of technology, bharuch, india. In this ebook you will find covering the both electrical discharge machining and electrochemical machining. Process parameters of abrasive jet maching ajm are factors that influence its metal removal rate mrr in a machining process, metal removal rate mrr is the volume of metal removed from a given workpiece in unit time. Manufacturing process technology ii dvd media storage type. Water jet cutting and abrasive water jet machining nptel.
Plasmaarc machining pam employs a highvelocity jet of hightemperature gas to melt and displace material in its path. The lectures would introduce to the students the basic principles of material removal by impact erosion by use of abrasives against hard and the brittle materials. Gas may be supplied either from a compressor or a cylinder. The following are some of the important process parameters of abrasive jet machining. Lecture series on manufacturing processes ii by prof. Abrasive jet machining ajm utilizes a high velocity jet of abrasives to remove material from work surface by impact erosion. We have seen its principle, advantages, disadvantages, applications, etcetera. Click here to visit our frequently asked questions about html5 video. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. In abrasive jet machining material removal occurs due to the impact of high velocity air or gas stream of abrasive particles on the work piece. Those who are interested to know more about welding engineering and the way it functions can learn about the same with our tutorials. Abrasive jet machining is one of the unconventional machining processes which, using various operations such as deburring, polishing. This course will define the areas of application of nontraditional abrasive machining processes in the manufacturing industry. Investigation of machining parameters in abrasive jet.
Abrasive jet machining ajm tutorial of advanced manufacturing processes course by prof a. Lecture 37 water jet machining and abrasive water jet youtube. The maximum xy motion travel will establish the cutting window or largest work piece for a specific table. Machining a material removal process in which a sharp cutting tool is used to mechanically cut away material so that the desired part geometry remains most common application. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water.
Abrasive processes are usually expensive, but capable of tighter tolerances and better surface finish than other machining processes. Plasma arc machining process, diagram, advantages and. 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. Abrasivejet machining ajm modern machining process. Since the process is non thermal, non chemical and non electrical it creates no. It is similar to abrasive jet machining ajm in water jet machining, high velocity water jet is allowed to strike a given workpiece. Pdf the versatility of the abrasive water jet in cutting almost any engineering material is a very special feature of this technology. 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.
They are quick to set up, and offer quick turnaround on the machine. In abrasive jet machining, a high velocity jet of abrasives is made to strike the work surface for removal of material by impact erosion. Krishnaiah chetty manufacturing engineering section, indian institute of technology madras, chennai 600 036, india the objective of this work is to. 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. You can also get course completion certification for some of the courses. Advanced machining processes online course video lectures.
Mechanical vibrations nptel online videos, courses iit. Electrochemical machining ecm is a machining process in which electrochemical process is used to remove materials from the workpiece. Find abrasive jet machining companies that can provide abrasive jet machining services to your companies specifications. Our online video tutorials are going to explore and explain the different concepts that are a part of mechanical sciences. Called pam, this is a method of cutting metal with a. Water jet machining wjm also called water jet cutting, is a nontraditional machining process in which highvelocity jet of water is used to remove materials from the surface of the workpiece. Non traditional abrasive machining processes ultrasonic, abrasive jet and abrasive water jet machining. Common examples include grinding, honing, and polishing. Organic photochemistry and pericyclic reactions nptel online videos, courses iit video lectures. Abrasive jet machining ajm process, parameters, equipment. Non traditional abrasive machining processes ultrasonic, abrasive. According to nature of energy employed in machining, nontraditional machining processes are further classified into the following groups. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. Other than cutting machining high pressure water jet also finds application in paint removal, cleaning, surgery, peening to remove residual stress etc.
On this channel you can get education and knowledge for general issues and topics. In a machining process, metal removal rate mrr is the volume of metal removed from a given workpiece in unit time. Mechanical engineering manufacturing processes ii nptel. Get comprehensive details of abrasive waterjet cutting machine, abrasive water jet cutting machine manufacturers, suppliers and exporters.
This study investigated the performance of ajm process for various structural ceramics, and it has been found that both hardness and toughness of. The process makes use of an abrasive jet with high velocity, to remove material and provide smooth surface finish to hard metallic workpieces. The abrasive jet inclination angle of erosion rate was measured. Abrasive jet machining ajm is a nontraditional machining process that can machine material without generating heat and.
Abrasive jet machining effect of mixing ratio on material removal ratemrr. Non traditional abrasive machining processes ultrasonic, abrasive jet abrasive water jet machining. Abrasive jet machining is a nontraditional machining process which is mostly used in machining of hardened metals. Welcome to the first lecture of the online course nontraditional abrasive machining. Sharma, department of mechanical engineering, iit roorkee. Water jet machining working principle, advantages and. Nocphase equilibria in materials nature and properties of materialsii. Organic photochemistry and pericyclic reactions nptel. Shantanu bhattacharya nptel coordinating institute. Abrasive jet machining water jet machining abrasive water jet machining ultrasonic machining. Introduction to abrasive machining and finishing processes dr. Mamilla ravi sankar department of mechanical engineering indian institute of technology guwahati. Plasma arc machining process, diagram, application, advantages and disadvantages introduction.
Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. You will find all pdf s and also as mp3 file for all video lectures which are in nptel. Learn for free, pay a small fee for exam and get a certificate. This is to certify that the thesis entitled design and fabrication of abrasive jet machine submitted by mr. The process of metal removal by electro chemical dissolution was known as long back as 1780 ad but it is only over the last couple of decades that this method has been used to advantage. It is the material removal process where the material is removed by high velocity stream of airgas or water and abrasive mixture. 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. Our selection of waterjet machining systems includes cutting windows from 4 feet x 8 feet up to 12 feet x 18 feet. A highvelocity jet of dry air, nitrogen, or carbon dioxide containing abrasive particles is aimed at the work piece surface under controlled conditions. Introduction and abrasive jet machining notes, mechanical engineeirng, semester notes edurev notes for is made by best teachers who have written some of the best books of.
The electrolyte in ecm should have high electrical conductivity, low viscosity, high specific heat, chemical stability, resistance to form a passivating film on the workpiece surface, non. Non traditional abrasive machining processes nptel. Most of these courses consists 40 videos and 1 hour duration each. This process is favorable for removing various deposits and coatings on metallic and ceramic surfaces. Abrasive jet machining ajm video lecture by prof a. Air, nitrogen and carbon dioxide to propel the abrasive particles. 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. Ultrasonic, abrasive jet abrasive water jet machining. Abrasive water jet cutting machine manufacturers, suppliers. Nptel provides courseware in the form of video lectures and web courses. Abrasive water jet cutting is an extended version of water jet cutting. Website links, company profile, locations, phone, product videos and product information is provided for each company. Studies on recharging of abrasives in abrasive water jet machining m.
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