Nontraditional machining processes are widely used to manufacture geometrically complex and precision parts for aerospace, electronics and. Comparison between conventional and non conventional machining. Non traditional machining ntm processes are now being widely used to generate intricate and accurate shapes in materials, like titanium, stainless steel, high strength temperature resistant hstr alloys, fiberreinforced composites, ceramics, refractories and other difficulttomachine alloys having higher strength, hardness. Comparison between conventional and nonconventional machining. Nov 08, 2016 download pdf book for this subject and share to give us credit. Electrical discharge machining edm is one of the most widely used non traditional machining processes. Conventional and nonconventional processes written by hassan abdel gawad elhofy covers the fundamentals machining by cutting, abrasion, erosion and combined processes. This book is written to serve the needs of under graduate students embarking introductory course in unconventional machining processes. Difference between conventional and nonconventional machining processes are. Conventional and nonconventional processes book pdf by hassan abdelgawad elhofy machining remains a hugely important process in modern engineering and manufacturing practice, and students need to be aware of the vast host of methods and technologies available to meet all sorts of precision and surface finish requirements. Lecture on non conventional machining process by mech zone.
Conventional and nonconventional processes book pdf by hassan abdelgawad elhofy machining remains a hugely important process in modern engineering and manufacturing practice, and students need to be aware of the vast host of methods and technologies available to meet all sorts of precision and surface finish. 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. Pdf unconventional machining processes local author by. 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. 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. For composites with dissimilar reinforcing phase and matrix e.
Jan 09, 2018 among the major non conventional fabrication techniques are electrochemical fabrication also called electrochemical machining or ecm, electrical discharge machining or edm, water jet cutting, abrasive water jet cutting wj, awj, laser beam mach. 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. Unconventional machining processes introduction and. Conventional machining an overview sciencedirect topics.
Limitations of conventional machining methods i increased workpiece hardness. In many cases, the engineering materials cannot be machined by traditional machining processes because of their shape and material type and other effective factors 3. Conventional and nonconventional processes, third edition crc press book written by an expert with over 40 years of experience in research and teaching machining and related topics, this new edition textbook presents the principles and theories of material removal and applications for conventional. Introduction to nontraditional machining processes prof. Non conventional tools are more accurate and precise than the conventional tool. Click download or read online button to get modern machining processes book now. This site is like a library, use search box in the widget to get ebook that you want. Download me6004 unconventional machining processes lecture notes, books, syllabus parta 2 marks with answers me6004 unconventional machining processes important partb 16 marks questions, pdf books, question bank with answers key. The main attraction of edm over traditional machining processes such as metal cutting using different tools and grinding is that this technique utilises thermoelectric process to erode undesired materials from the work piece by a series of. In unconventional machining, a form of energy is used to remove unwanted material from a given workpiece.
Materials are removed by traversing in a direction parallel to the axis of. No conventional non conventional 1 direct contact of tool and workpiece. Some of the processes employed for hole making are electrodischarge machining, laser beam machining, electron beam machining, shaped tube electrochemical machining and electrochemical spark machining. Nontraditional machining processes covers recent research and development in techniques and processes which focus on achieving high accuracies and good surface finishes, parts machined without burrs or residual stresses especially with materials that cannot be machined by conventional methods. Non traditional manufacturing processes an overview. No conventional nonconventional 1 direct contact of tool and workpiece. Difference between conventional and non conventional machining processes are. Powder stage manufacturing processes powder metallurgy secondary manufacturing to impart final shape. Conventional machining process involved tool wearing as there is a physical contact between the tool and the work piece. Book download link provided by engineering study material esm. Modern machining processes download ebook pdf, epub.
Pdf me6004 unconventional machining processes lecture. Among the major nonconventional fabrication techniques are electrochemical fabrication also called electrochemical machining or ecm, electrical discharge machining or edm, water jet cutting, abrasive water jet cutting wj, awj, laser beam mach. Non traditional machining processes book pdf, calculus purcell 9th edition pdf download, situations where traditional machining processes are unsatisfactory or uneconomical. 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. Manufacturing is the backbone of any industrialized nation. Brief overview and introduction to electrochemical machining, electrode discharge machining, ultrasonic machining, abrasive jet machining, material removal r. Download pdf nontraditional machining processes free. Many advanced finishing processes have been employed to make circular andor noncircular cavities and holes in difficulttomachine materials. The machining characteristics of different nonconventional processes can be analyzed. These processes are generally used when traditional methods are not technically or economically feasible. Types, advantages, limitations, machine tool, cutting tool, chips. However, machining processes inevitably waste material in the form of chips, production rates may be low, and unless carried out properly, the processes can have detrimental effects on the surface properties and performance of parts. Introduction we all know that the term machinability refers to the case with which a metal can be machined to an acceptable surface finish.
Seminar on non conventional machining report download. 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. 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. Pdf me6004 unconventional machining processes lecture notes. In order to realize the manufacturing machining demands thrived by newer, hard and difficulttomachine materials being utilized in the present day industries, an assortment of non traditional machining ntm processes has been developed over the past few decades. This book covers all possible topics needed in an undergraduate machining processes course. There is no physical contact between the tool and work piece, in some non. Pdf unconventional machining processes local author by dr. Selection of nontraditional machining process ijert. Download pdf nontraditional machining processes free online. Pdf selection of nonconventional machining processes using. Nonconventional tools are more accurate and precise than the conventional tool.
Nonconventional machining processes, multi criteria decision making, selection, moora method. In conventional metal machining, oxygen is usually used, taking advantage of an exothermic chemical reaction to enhance the machining process, but argon or nitrogen are also used with cmcs. 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 unconventional machining is also called as non traditional machining the unconventional machining use for the machine the hard and brittle materials such as carbides, stainless steel, hastelloy, nitralloy, waspalloy, and any other that cannot be machined by a conventional process using the conventional machines such as lathe, milling, shaper, planer etc.
Disadvantages and limitations of edm process there are some limitations of edm process as listed below. Unconventional machining process linkedin slideshare. Manufacturing and technical staff in industry must know the various manufacturing processes, materials being processed, tools and equipments for manufacturing different components or products with optimal process plan. Scribd is the worlds largest social reading and publishing site. Download pdf book for this subject and share to give us credit. Non traditional machining processes machining grinding. 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. In unconventional machining, a form of energy is used to remove unwanted material from. It is a process in which a piece of raw material is cut into a desired shape and size by means of sharp cutting tools called a machining process. Modern machining processes download ebook pdf, epub, tuebl. Nontraditional machining processes, also called advanced manufacturing processes, are employed where traditional machining processes are not feasible, satisfactory or economical due to. Unconventional machining process is defined as a group of p rocesses that remove.
Non conventional machining free download as powerpoint presentation. Conventional and nonconventional processes book pdf by hassan abdelgawad elhofy machining remains a hugely important process in modern engineering and manufacturing practice, and students need to be aware of the vast host of methods and technologies available to meet all sorts of precision and. Pdf selection of nonconventional machining processes. Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or. Pdf manufacturing processes by hn gupta pdf download. Mechanical machining i jet machining and ultrasonic machining usm are typical examples of single action, mechanical non traditional machining processes.
The book has both conventional and nonconventional machining process to teach you effectively. 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. 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. Mechanical machining ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. 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. Written by an expert with over 40 years of experience in research and teaching machining and related topics, this new edition textbook presents the principles and theories of material removal and applications for conventional, nonconventional and hybrid machining processes.
The main reasons for choosing non traditional machining processes are. Download nontraditional machining processes ebook pdf or read online books in pdf, epub. Nontraditional and hybrid processes which has been published by mcgraw hill co in march 1, 2005. It aims to describe difference between conventional and non traditional machining ntm process, types of ntm processes, all types of processes separately under each heading, their application and uses. A decision guidance framework for nontraditional machining. The book has both conventional and nonconventional. 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.
Nontraditional machining ntm processes are now being widely used to generate intricate and accurate shapes in materials, like titanium, stainless steel, high strength temperature resistant hstr alloys, fiberreinforced composites, ceramics, refractories and other difficulttomachine alloys having. Selection of nonconventional machining processes using the ocra method article pdf available in serbian journal of management 101 september 2014 with 1,732 reads how we measure reads. Advanced nontraditional machining processes springerlink. 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. I the machining medium is solid grains suspended in an abrasive slurry. A new nontraditional machining method using cavitation. The cutting tool and work piece are always in physical contact with relative motion with each other, which results in friction and tool wear. Conventional machining processes and machine tools moduleiv. His second book titled fundamentals of machining processesconventional and nonconventional processes has been appeared in september 2007 by crc, taylor and francis. This paper gives an introduction and a brief overview of various unconventional processes that are in practice nowadays. Seminar on non conventional machining report download abstract. His second book titled fundamentals of machining processes conventional and nonconventional processes has been appeared in september 2007 by crc, taylor and francis. In recent years there has been a massive growth in the usage of the non traditional machining process. Tools are non conventional technique like laser beam, electric arc etc.
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. Differences between conventional and non conventional machining processes. Regarding these, nontraditional machining ntm processes have been developed since the world war ii largely in. Lecture notes on college of engineering and technology. Selection of nonconventional machining processes using the ocra method article pdf available in serbian journal of management 101 september 2014 with. Analytic hierarchy process, analytic network process. Nontraditional machining processes are widely used to manufacture geometrically complex and precision parts for aerospace, electronics and automotive industries. In order to realize the manufacturingmachining demands thrived by newer, hard and difficulttomachine materials being utilized in the present day industries, an assortment of nontraditional machining ntm processes has been developed over the past few decades. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. 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. Senthil kumar, ars publications the book unconventional machining processes for engineering and technology studies. Pdf unconventional machining processes senthil kumar. Difference between conventional and nonconventional. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process.
Many advanced finishing processes have been employed to make circular andor non circular cavities and holes in difficulttomachine materials. The machining characteristics of different nonconventional processes can be. Ramkumar department of mechanical engineering iit kanpur march 26, 2018. Tools are nonconventional technique like laser beam, electric arc etc. Professor elhofy wrote his first book titled advanced machining processes.