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. In ecm process the material dissolution occurs when the workpiece is made an anode in an electrolytic cell. Unconventional machining process nov,dec2014, may 2014 r2008, unconventional machining process may 2014 r2008,2010, unconventional machining process nov,dec20, unconventional machining process dec2012, unconventional machining process ap,may2008, unconventional machining process may2009, unconventional machining process nov,dec2009, unconventional machining process nov,dec2010. The objective of this paper is to provide a state of the art in the field of laser cutting process. 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. Senthil kumar, apmech of the unconventional machining. Types of unconventional machining processes based on energy used mechanical energy processes, chemical energy processes. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. In unconventional machining, a form of energy is used to remove unwanted material from. The processes that have this common theme, controlled material removal, are today collectively known as subtractive manufacturing, in distinction from processes of controlled material addition, which are known as additive manufacturing. We know that metal can be easily converted to metallic salt, if suitable reagent is used.
Jan 09, 2018 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. The difficulty to cut materials encouraged efforts that led to the introduction of the unconventional machining. Pdf me6004 unconventional machining processes lecture notes. Also, state the mechanism of material removal, transfer media and energy sources used. Unconventional machining process unconventional forming process need for unconventional machining process harder and difficult to machine materials, can be machined easily and precisely. Developments are taking place both in the conventional methods and unconventional methods of manufacture. Hence the machining process which utilizes other machining methods are termed as unconventional. 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.
Me6004 unconventional machining processes lecture notes ppt. In 1927, emil lerp invented a saw that works with using oil in germany. 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. This book is mainly useful for mechanical engineering students. Materials are removed by traversing in a direction parallel to the axis of. Pdf unconventional machining processes local author by dr. Its materialremoval mechanism includes impacting and hammering. There is no case of micromachining in conventional machining methods and that has been fed up with the unconventional machining methodsadvanced manufacturing methods because of the following reasons. The common nontraditional machining processes are described in this section. Machining processes produce finished products with a high degree of accuracy and surface quality. Page 1 of 3 unconventional machining process iii a mechanical. Unconventional machining processes introduction and. The machining process so developed is called hybrid machining processes hmps kozak and rajurkar, 2000.
Unconventional machining process machining applied and. Material al2o3 sic glass beads shape irregular spherical size 1050. Tools that belongs to reaming and tapping processes are tend to breakage so machinists should behave carefully not to break tapers and reamers pieces in the hole. Starting from plate stock, thin features walls, floors, or even pins are created by machining operations.
Process of fabrication of miniature structures features of. Need of the unconventional mcing sustain productivity with increasing strength of the work material. This is due to material removal rate mrr decreases with increased hardness of the work material. The usm is effective and particular for all brittle materials 11, 5. Unconventional machining processes local author book by dr. Me2026 unconventional machining process 1 sce department of mechanical engineering unit i introduction 1. Building of machines, structures, or process equipment by cutting, shaping and assembling components made from raw materials. Conventional machining utilizes cutting tools that must be harder than workpiece material. Maintain productivity with desired shape, accuracy, and surface integrity requirements. Jagadeesha t is currently working as an assistant professor in the department of mechanical and production engineering at national institute of technology nit, calicut kerala. Unconventional machining processes textbook is one of the famous textbook for engineering students. The former onesprovide basic shape and size to the material as per designers requirement.
The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. The book unconventional machining processes offers an indepth study on various unconventional machining processes. Buy unconventional machining process by senthil book online shopping at low prices in india. Unconventional machining processes textbook pdf free download unconventional machining processes textbook pdf free download. A new nontraditional machining method using cavitation. Dec 14, 2016 a comparative study of various nonconventional machining process and there application. 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. Objective type questions in unconventional machining. Uniti unconventional machining processneedclarificationbrief overview of all techniques parta 1. Unconventional machining processes important questions.
Mech book list science and technology engineering scribd. Unconventional machining processes textbook pdf free. The unconventional machining is also called as nontraditional 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. Unconventional machining process imp qusts ump important. Here, chemical energy is used to remove material from the workpiece. Unconventional machining process imp qusts pdf file ump important questions please find the attached pdf file of unconventional machining process importan. Deformation machining is a novel hybrid process that, on one machine, and in one step, combines the machining of thin structures and single point incremental forming. This textbook is also useful to most of the students who are preparing. Types of unconventional machining process mech engg. Classification of unconventional machining processes based. Senthil kumar, ars publications book free download.
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. Unconventional machining processes textbook pdf free download. 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 machining is carried out as high velocity 200 ms abrasive particles are issued from the nozzle onto a work piece traversing under the jet. The objective of this paper is to provide a state of. Pdf unconventional machining processes local author by. Unconventional machining process unit 3 electrical energy based processes. Process parameters and machining characteristics abrasive. Modern machining method working principle of electric discharge machining electric discharge machining process is carried out in presence of dielectric fluid which creates path for discharge.
Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled materialremoval process. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Necessity to use new materials, demanding functional requirements and miniaturization have led to evolution of modern manufacturing processes. 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. 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 this sense, they are no more unconventional or nontraditional.
His innovative research on bpsg cvd process won the best ifit award at st microelectronics, singapore. Pdf unconventional machining process unit 3 electrical. Pdf machining process monitoring, book chapter in handbook of. In 1950, he invented first portable saw which has a.
A machining process is called nontraditional if its material removal mechanism is basically different than those in the traditional processes, i. Jan 05, 2019 write the formula for find the mrr for ductile materials. Unconventional machining processes notes download pdf unconventional machining processes question bank 1 download pdf unconventional machining processes me6004 may june 2016 question paper unconventional machining processes me6004 nov dec 2016 question paper download anna university notes android app unconventional machining. History the early ancestors of modern humans, likely first used a jawbone of bovid animals as a saw. The advent of shortbar barfeeding systems has eliminated many of the inconveniences associated with barfeeding process. Table of contents,index,syllabus,summary and image of unconventional machining process book may be of a different edition or of the same title. Scribd is the worlds largest social reading and publishing site. Abstract laser cutting is an energy based unconventional process is an advanced machining process. This book is written to serve the needs of under graduate students embarking introductory course in unconventional machining processes.
To learn about various unconventional machining processes, the various process parameters and their influence on performance and their applications. To learn about the various unconventional machining process. High speed machining, hard machining, non conventional processes like beam, mechanical and chemical. This post also covers the lecture notes prepared by mr. Need for unconventional machining process i harder and difficult to machine materials iican be machined easily and precisely. This textbook is also useful to most of the students who are preparing for competitive exams. The processes that have this common theme, controlled material removal, are today collectively known as subtractive manufacturing, in distinction from processes of controlled material addition, which are known as additive. Pdf me6004 unconventional machining processes lecture. Senthil kumar, ars publications the book unconventional machining processes for engineering and technology studies. Unconventional machining process anna university question paper. Download machining process pdf at the end of the article. 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. Manufacturing processes can be broadly divided into two groups and they are primarymanufacturing processes and secondary manufacturing processes.
Then using a forming tool single point incremental forming. In particular, the unconventional machining actions such as mechanical, thermal or electrochemical can be combined with mechanical action of conventional machining. In unconventional machining, a form of energy is used to remove unwanted material from a given workpiece. Unconventional machining process nov,dec2014, may 2014 r2008,unconventional machining process may 2014 r2008,2010,unconventional machining process nov,dec20,unconventional machining process dec2012,unconventional machining process ap,may2008,unconventional machining process may2009,unconventional machining process nov,dec2009,unconventional. Write the formula for find the mrr for ductile materials. Unconventional machining process sasurie college of engineering. Unconventional machining process by senthilbuy online. Pdf unconventional machining processes senthil kumar. In 1926, the first saw which worked with electricity was invented by andreas stihl. Depending on workpiece material and the condition of the tool, unit powerrequirements in machining range between 0. Machining processes effect of nonconventional material removal 273 processes onthe surface integrity of the materials machined factors whichconstitute surface integrity 274 importance of surface integrity 275 9.
Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or. Thanks for comment, i think the main purpose of unconventional machining processes were to cut and machine difficult and complex shapes of metals. What is the need for unconventional machining processes. Unconventional machining processes important questions for mechanical engineering students. Pdf applications of optimization techniques for parametric. The usm process is effectively used to machining conductive and nonconductive materials. Unconventional machining process unconventional 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 used for traditional manufacturing. Unconventional machining process free download as powerpoint presentation. Until at least the mid19th century, saws were made laboriously by hand. Chemical energy based unconventional machining processes. Pdf the constrained applications of conventional machining processes in generating complex shape. This paper gives an introduction and a brief overview of various unconventional processes that are in practice nowadays.
Unconventional machining process book is not for reading online or for free download in pdf or ebook format. Technology and engineering international journal of recent ijrte. Jagadeesha t, assistant professor in the department of mechanical engineering at nit calicut. Unconventional machining processes me8073, me6004 anna. The advent of hard materials for aerospace applications have made the machining process by conventional methods very difficult and time consuming. Unconventional machining processes frequently asked questions, and last year questions. Conventional machining processes and machine tools moduleiv. Classification of unconventional machining processes based on. Senthil kumar, ars publications pdf free download jobs seekers. Jun 20, 2016 the advent of hard materials for aerospace applications have made the machining process by conventional methods very difficult and time consuming. It is now well established that unconventional machining processes are able to meet the. Applications of optimization techniques for parametric analysis of nontraditional machining.
Unconventional machining processes local author book by. In this paper the complexity of electrical discharge machining process which is very difficult to determine. Pdf in the modern manufacturing industry, monitoring the machining process and tool. Nonconventional manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal. Senthil ganesh assistant professor mechanical engineering. Unconventional machining process anna university question. Ingm pec unconventional machining process dr s senthil text books pdf list of ebooks and manuels about unconventional machining procesd dr s senthil text books pdf meunconventiona l machining process unconventional.
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