Non traditional manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal, electrical or chemical energy or combinations of these energies but do not use a sharp cutting tools as it needs to be. In addition to these conventional methods, there is a group of processes that use. This gate study preparation material for mechanical engineering may be useful for students who preparing for gate 2021. The process of nonconventional machining, on the other hand, employs modern and latest technology in processing. The process of non conventional machining, on the other hand, employs modern and latest technology in processing. An unconventional machining process or nontraditional machining process is a special type of machining process in which there is no direct contact between the tool and the workpiece.
Difference between conventional and non conventional machining processes are. The main reasons for choosing nontraditional machining processes are. Conventional machining processes and machine tools moduleiv turning turning operation is a machining process and is used to produce round parts in shape by a single point cutting tool. There is no thermal damage and burr free surface can be produced. Gate 2021 mechanical notes sk mondal free download pdf. Lecture11nonconventional machiningintroduction, ajm.
Conventional machining methods always produce some stress in the metal being cut. This process uses thermal energy to remove material from metallic or nonmetallic sur. Pu be mech non conventional machining 6th semester 20. An unconventional machining process or non traditional machining process is a special type of machining process in which there is no direct contact between the tool and the workpiece. Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or. Machining is a processes in which a piece of raw material is cut into a desired final shape and size by a controlled materialremoval process. These methods can be classified as the basis of their base principle of working. The machining medium is solid grains suspended in an abrasive slurry in the. The process of metal removal by electro chemical dissolution was known as. In unconventional machining, a form of energy is used to remove unwanted material from a given workpiece. Automatic tool changer pallet shuttles automatic workpart positioning cnc turning center.
Manufacturing processes i nptel online videos, courses. The impact of free abrasive particles on the work surface. Conventional machining processes and machine tools moduleiv. Paul,department of mechanical engineering, iit kharagpur. Nonconventional machining methods also provide very good quality of surface finish which may also be an encouragement to these methods. The high frequency of monochromatic light will fall on the surface then heating, melting and vaporizing of the material take place due. The book provides insight into the use of some basic processes existing today in the domain of nonconventional manufacturing machining. Comparison between conventional and nonconventional machining.
This process involves no contact between the machine tools and material. Unconventional machining processes introduction and. Nov 26, 2017 brief overview and introduction to electrochemical machining, electrode discharge machining, ultrasonic machining, abrasive jet machining, material removal r. This document is highly rated by mechanical engineering students and has been viewed 296 times. Brief overview and introduction to electrochemical machining, electrode discharge machining, ultrasonic machining, abrasive jet machining, material removal r. Electrical discharge machining is a machining method primarily used for hard metals or those that would be very difficult to machine with traditional techniques.
This process uses thermal energy to remove material from metallic or nonmetallic surfaces. Buy nonconventional machining book online at low prices in. Laser beam machining lbm is a non conventional machining manufacturing process, a form of machining, in which a laser is directed towards the work piece for machining. It includes detailed information to gain insight into the manufacturing processes. In unconventional machining, a form of energy is used to remove unwanted material from a. A new nontraditional machining method using cavitation. Lecture series on manufacturing processes ii by prof. Materials are removed by traversing in a direction parallel to the axis of. These manufacturing process som study notes will help you to get conceptual deeply knowledge about it. The new edition has been expanded with two additional chapters covering the concept of machinability and the roadmap for. Nontraditional manufacturing processes or unconventional machining processes conventional machining processes mostly remove material in the form of chips by applying forces on the work material with a wedge shaped cutting tool that is harder than the work material under machining condition. Download nontraditional manufacturing processes by gary f. No conventional nonconventional 1 direct contact of tool and workpiece.
Non conventional machining processes selection using multiobjective 1449 journal of engineering science and technology november 2015, vol. Nontraditional manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal, electrical or chemical energy or combinations of these energies but do not use a sharp cutting tools as it needs to be. Non conventional manufacturing processes question 1 b the areas of application of non conventional manufacturing processes are as follows. Conventional and nonconventional processes covers the fundamentals machining by cutting, abrasion, erosion, and combined processes.
In this sense, they are no more unconventional or nontraditional. 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. Pdf nontraditional manufacturing processes by gary f. This paper presents a new method in machining of materials using cavitation process. Comparison between conventional and non conventional machining. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Traditional machining methods are often ineffective in machining hard materials like ceramics and composites or machining under very tight tolerances as in micromachined components. Non traditional manufacturing processes or unconventional machining processes conventional machining processes mostly remove material in the form of chips by applying forces on the work material with a wedge shaped cutting tool that is harder than the work material under machining condition. Hence the machining process which utilizes other machining methods are termed as unconventional machining or nontraditional machining or advanced machining processes or modern machining processes. Jagadeesha t, assistant professor, national institute of technology, calicut.
The aim of the mtcs non conventional machining ncm theme is to provide efficient, costeffective solutions for the manufacture of traditionally difficult to machine materials using stateoftheart spark erosion and laser technologies. The improved thermal, mechanical and chemical properties of advanced materials super alloys, composites, and ceramics have created impediments in easy machining of such materials by conventional machining processes namely turning, milling and drilling etc. Nonconventional machining processes selection using multiobjective 1449 journal of engineering science and technology november 2015, vol. Download link is provided and students can download the anna university me6004 unconventional machining processes ump syllabus question bank lecture notes syllabus part a 2 marks with answers part b 16 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials. Jun 20, 2016 hence the machining process which utilizes other machining methods are termed as unconventional machining or non traditional machining or advanced machining processes or modern machining processes. In this sense, they are no more unconventional or non traditional. There can be a very long list of non conventional machining methods. Pdf unconventional machining processes local author by. Non conventional machining introduction, ajm, wjm, usm. Pdf manufacturing processes by hn gupta pdf download. Machined surfaces are stress and burr free having good surface finish 5.
Soil exploration lecture notes, notes, pdf free download, engineering notes, university notes, best pdf notes, semester, sem, year, for all, study material. These processes are generally used when traditional methods are not technically or economically feasible. The main reasons for choosing non traditional machining processes are. Lecture on non conventional machining process by mech zone. There can be a very long list of nonconventional machining methods. Non traditional manufacturing processes an overview. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Also, the fixtures and tools should be rigid enough to avoid vibration or deflection under the high hydraulic forces to which they are subjected. The processes are non traditional or nonconventional in the sense that they dont employ a conventional or traditional tool for material removal, instead, they directly utilize some form of energy for metal machining. The former onesprovide basic shape and size to the material as per designers requirement. The recent increase in the use of hard, high strength and temperature resistant materials in engineering has necessitated the development of newer machining techniques.
Apr 25, 2020 pu be mech non conventional machining 6th semester 20 question paper mechanical engineering notes edurev is made by best teachers of mechanical engineering. We are here to provides you the best study notes from best coaching like made easy, ace academy etc and lecture notes from best institutions like mit open course, iit nptel, crec tirupati, washington, middle east technical university etc. Non conventional machining methods also provide very good quality of surface finish which may also be an encouragement to these methods. Use of non corrosive and electrically non conducting material for making fixtures is recommended.
Difference between conventional machining and nontraditional machining ntm pintu 27042019 ntm by definition, machining is one of the secondary manufacturing processes by which excess material is gradually removed by shearing from a preformed blank in the form of solid chips using a wedge shaped cutting tool in order to get desired shape. Non conventional tools are more accurate and precise than the conventional tool. This book addresses issues essential to unconventional machining processes, covering all modern machining processes such as mechanical processes, electrochemical and chemical metal removal processes, and thermal metal removal processes. Tools are nonconventional technique like laser beam, electric arc etc. Conventional and non conventional machining processes. Manufacturing processes can be broadly divided into two groups and they are primarymanufacturing processes and secondary manufacturing processes. Sharma, department of mechanical engineering, iit roorkee. Edm typically works with materials that are electrically conductive, although methods have also been proposed for using edm to machine insulating ceramics 8 9. No conventional non conventional 1 direct contact of tool and workpiece. Pdf nonconventional machining processes selection using. Material is removed from the work piece by a series of rapidly recurring current discharges between two electrodes, separated by a dielectric liquid and subject to. Dec 29, 2015 machining is a processes in which a piece of raw material is cut into a desired final shape and size by a controlled materialremoval process.
Completely revised and updated, this second edition of fundamentals of machining processes. Machining centers machining center highly automated machine tool capable of performing multiple machining operations under cnc control. Nonconventional manufacturing processes question 1 b the areas of application of nonconventional manufacturing processes are as follows. The need to a avoid surface damage that often accompanies the stresses created by conventional machining. Conventional machining process involved tool wearing as there is a physical contact between the tool and the work piece. This book is written to serve the needs of under graduate students embarking introductory course in unconventional machining processes. Manufacturing process study notes handwritten free pdf. Difference between conventional machining and non traditional machining ntm pintu 27042019 ntm by definition, machining is one of the secondary manufacturing processes by which excess material is gradually removed by shearing from a preformed blank in the form of solid chips using a wedge shaped cutting tool in order to get desired shape. The new edition has been expanded with two additional chapters covering the concept of machinability and the roadmap for selecting machining processes that meet. Nonconventional machining introduction, ajm, wjm, usm. Senthil kumar, ars publications the book unconventional machining processes for engineering and technology studies. Pdf nonconventional energy resources by b h khan book. Non traditional machining processes s5me complied by.
What is the difference between conventional and non. Materials are removed by traversing in a direction parallel to the axis of rotation of axis or along a specified path to form a complex rotational shape. Given this, nontraditional machining is widely utilized in responding to modern industrial problems. Tools are non conventional technique like laser beam, electric arc etc. The aim of the mtcs nonconventional machining ncm theme is to provide efficient, costeffective solutions for the manufacture of traditionally difficult to machine materials using stateoftheart spark erosion and laser technologies. Nonconventional energy resources by b h khan pdf free download. Introduction as a result of the advances in machine tools and cutting tool technology in recent decades, many of the conventional machining processes such as turning, milling and drilling have become costeffective, flexible and highthroughput manufacturing processes for producing high precision and high. Difference between conventional and nonconventional.
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