Modern machining unit 5 modern machining method method. Material removal may occur with chip formation or even no chip formation may take place. Nontraditional processes ntp nontraditional cutting. In this category of nontraditional machining electrical energy. The most common material removal processes, sometimes referred to as conventional or traditional machining, are those that mechanically cut away small chips of material using a sharp tool. Other techniques include ultrasonic, water jet and abrasive jet machining. Nontraditional machining and thermal cutting processes. Modern machining processes top results of your surfing modern machining processes start download portable document format pdf and ebooks electronic books free online rating news 20162017 is books that can provide inspiration, insight, knowledge to the reader. Nontraditional machining processes selection using data envelopment analysis dea article pdf available in expert systems with applications 387. Classification of nontraditional machining processes 8.
Nontraditional machining processes flashcards quizlet. A strategic development of green manufacturing index. Rotary machining by ultrasounds rum, by rotary ultrasonic machining is part of the nonconventional machining processes that allow the machining of materials hard and fragile in an efficient. Latest trends in machining preface it all started sometime in september 1961, when i joined hindustan motors. Nontraditional machining processes selection using. No conventional non conventional 1 direct contact of tool and workpiece. Pdf nontraditional machining processes selection using. 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. 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. Doing preparation from the previous year question paper helps you to get good marks in exams. Many advanced finishing processes have been employed to make circular andor noncircular cavities and holes in difficulttomachine materials.
It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Numerical solutions of linear and nonlinear algebraic. It describes available technologies that use tools, such as high velocity material jets, pulsed magnetic fields, light beams, electrochemical reactions, and more. Abrasive water jet machining awjm electrochemical processes. 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.
Our website provides solved previous year question paper for non traditional machining from 2011 to 2018. Sina weibo sitejot skype slashdot sms stocktwits svejo symbaloo. Ntm mechanical engineering btech 6th ptu previous years. Highenergybeam machining waterjet and abrasive jet machining. Tools are non conventional technique like laser beam, electric arc etc. Fundamentals and applications materials forming, machining and tribology 1st ed. Extremely hard and brittle materials are difficult to machine by traditional machining processes such as turning, drilling, shaping and milling. Conventional machining process involved tool wearing as there is a physical contact between the tool and the work piece. Department of mechanical engineering, indian institute of technology kanpur. Non traditional manufacturing processes an overview.
Download scientific diagram classification of nontraditional machining processes 8 from publication. There are limitations in regard to the delicacy andor complexity of the work that can be done, as a result of these disadvantages, nontraditional machining processes ntm, that do not involve the formation of chips by shear deformation have been developed. The main reasons for choosing nontraditional machining processes are. Nontraditional machining traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves. 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. Gate 2020 syllabus for production and industrial engineering pi. Regarding these, nontraditional machining ntm processes have been developed since the world war ii largely in response to new, challenging, and unusual machining and or shape requirements 4. Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or. Unsourced material may be challenged and removed december 2009 learn how and when to remove this template message. I the machining medium is solid grains suspended in an abrasive slurry in the former, while a uid is employed in the jet machining process. Chemical machining in chemical machining material is removed from selected areas of a workpiece by immersing it in a chemical reagent. Download brochure for common mechanical engineering terms used by designers and engineers.
The book has both conventional and nonconventional machining process to teach you effectively. Chemical reaction between liquid reagent and workpiece. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. Traditional edged cutting toolbased machining processes are now being continuously replaced by nontraditional machining ntm processes so as to generate complex and intricate shapes on advanced and harder materials, like titanium, stainless steel, highstrength temperatureresistant alloys, fiberreinforced composites, and engineering ceramics. This book covers all possible topics needed in an undergraduate machining processes course. Nontraditional machining process, quality function deployment, expert system 1 introduction manufacturing industries, like aviation, nuclear, missile, tool and diemaking now use newly developed hard and difficulttomachine materials demanding high precision and surface finish.
Manufacturing processes can be broadly divided into two groups 1. Machining techniques introduction to non traditional machiniing techniques by mr. Hello everyone welcome to engineers academy topics covered. Comparison between conventional and non conventional machining. Now everyone can become knowledgeable as to what these processes are capable of, how they work, and the advantages they offer over the more traditional machining technologies. Nontraditional machining, utilizing electrical, chemical, and optical sources of energy. Material removal processes machining is the broad term used to describe removal of material from a workpiece includes cutting, abrasive processes grinding, advanced machining processes electrical, chemical, thermal, hydrodynamic, lasers automation began when lathes were introduced in 1700s. Organized by type of process mechanical, chemical, electrochemical, and thermal, the book discusses 31. Characteristics of electrolyte good electrical conductivity non toxicity and chemical stability non corrosive property low viscosity and high specific heat electrolyte used sodium. 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. Nonconventional fabrication, ecm, edm, pmc, waterjet.
Unlike lbm, this process requires a vacuum, and hence workpiece size is limited by the chamber size. The advantages over conventional machining are covered, as are the economics of. 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. Non traditional manufacturing processes an overview introduction 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. Laser cuttingnon conventional machining difference between conventional and nonconventional machining processes are. Nontraditional machining processes semantic scholar. Engineering ebooks download engineering lecture notes. This book provides a convenient, single source of information on advanced machining, material forming, and joining processes.
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. Pdf nontraditional manufacturing processes by gary f. Please help improve this section by adding citations to reliable sources. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Material removal processes categories of machining cutting involve single or multipoint cutting tools and processes turning, boring, drilling, tapping, milling, sawing, and broaching abrasive processes grinding, honing, lapping, ultrasonic machining advanced machining non traditional machining processs. Nontraditional machining processes chap 9 in textbook. Waterjet machining a schematic illustration of waterjet machining. Download nontraditional manufacturing processes by gary f.
On account of the importance of these production methods in modern manufacturing systems, non traditional machining processes are now included in curriculum of the most graduate and undergraduate engineering courses. Advanced nontraditional machining processes springerlink. A brief comparison of conventional and nonconventional fabrication methods. Carbide tools replaced most of the hss tools in machining processes. Selection of nontraditional machining processes using. Primary manufacturing processes this provide basic shape and size to the material as per designers requirement. You can also download it in the pdf format from the given link at the bottom of this article. This course deals with non traditional machining processes, we will discuss about advantage and disadvantages, instrument used for machining, applications of various processes and all numericals from gate ies upsc perspective. 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. 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. This tree lists various manufacturing processes arranged by.
Non traditional machining previous year question paper with solutions for non traditional machining from 2011 to 2018. Non traditional machining traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves. An expert system for nontraditional machining process. In unconventional machining, a form of energy is used to remove unwanted material from a. Unconventional machining processes introduction and. Nonconventional fabrication, ecm, edm, pmc, waterjet machining, laser, plasma, ebm machining, ultrasonic machining, soldering. Start studying chapter 25 nontraditional machining and thermal cutting processes. 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. These advanced machining processes amp become still more important when one considers precision and ultraprecision machining. Nontraditional machining processes, also called advanced manufacturing processes, are employed where traditional machining processes are not feasible, satisfactory or economical due to special reasons as outlined below. A new nontraditional machining method using cavitation.
Thus classification of ntm processes is carried out depending on the nature of energy used for material removal. These processes are generally used when traditional methods are not technically or economically feasible. Introduction to nontraditional machining iit kanpur. 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. 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. New and novel materials because of their greatly improved chemical, mechanical and thermal properties are sometimes impossible to machine using traditional machining processes. Mechanical machining i jet machining and ultrasonic machining usm are typical examples of single action, mechanical non traditional machining processes. That has all been changed, since the publishing of carl sommer s latest book, the nontraditional machining handbook.
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