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. Conventional machining process involved tool wearing as there is a physical contact between the tool and the work piece. Carbide tools replaced most of the hss tools in machining processes. Nontraditional machining and thermal cutting processes. In this category of nontraditional machining electrical energy. Characteristics of electrolyte good electrical conductivity non toxicity and chemical stability non corrosive property low viscosity and high specific heat electrolyte used sodium. 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.
Download nontraditional manufacturing processes by gary f. Nontraditional machining processes chap 9 in textbook. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Primary manufacturing processes this provide basic shape and size to the material as per designers requirement. Nontraditional processes ntp nontraditional cutting. Department of mechanical engineering, indian institute of technology kanpur. Gate 2020 syllabus for production and industrial engineering pi. Nontraditional machining processes semantic scholar. Unlike lbm, this process requires a vacuum, and hence workpiece size is limited by the chamber size. You can also download it in the pdf format from the given link at the bottom of this article. Chemical reaction between liquid reagent and workpiece.
Start studying chapter 25 nontraditional machining and thermal cutting processes. Nontraditional machining, utilizing electrical, chemical, and optical sources of energy. Please help improve this section by adding citations to reliable sources. 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. Latest trends in machining preface it all started sometime in september 1961, when i joined hindustan motors. Nontraditional machining processes selection using data envelopment analysis dea article pdf available in expert systems with applications 387. 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.
Nonconventional fabrication, ecm, edm, pmc, waterjet machining, laser, plasma, ebm machining, ultrasonic machining, soldering. 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. In unconventional machining, a form of energy is used to remove unwanted material from a. Manufacturing processes can be broadly divided into two groups 1. Highenergybeam machining waterjet and abrasive jet machining. These advanced machining processes amp become still more important when one considers precision and ultraprecision machining. Other techniques include ultrasonic, water jet and abrasive jet machining. 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. Our website provides solved previous year question paper for non traditional machining from 2011 to 2018. Organized by type of process mechanical, chemical, electrochemical, and thermal, the book discusses 31. 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. Thus classification of ntm processes is carried out depending on the nature of energy used for material removal. Yet, there are very few really good text books covering fundamentals, mathematical concepts and numerical problems.
This book provides a convenient, single source of information on advanced machining, material forming, and joining processes. Fundamentals and applications materials forming, machining and tribology 1st ed. 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. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Nontraditional machining traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves.
Waterjet machining a schematic illustration of waterjet machining. Non traditional manufacturing processes an overview introduction 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. 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. Nontraditional machining processes flashcards quizlet. 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. Unsourced material may be challenged and removed december 2009 learn how and when to remove this template message. 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. Pdf nontraditional machining processes selection using. Laser cuttingnon conventional machining difference between conventional and nonconventional machining processes are. Engineering ebooks download engineering lecture notes. Numerical solutions of linear and nonlinear algebraic.
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. 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. Comparison between conventional and non conventional machining. Unconventional machining processes introduction and.
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. 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. Selection of nontraditional machining processes using. Hello everyone welcome to engineers academy topics covered. 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. These processes are generally used when traditional methods are not technically or economically feasible. 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. 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. Non traditional manufacturing processes an overview. Ebook modern machining processes as pdf download portable. 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. 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.
Mechanical machining i jet machining and ultrasonic machining usm are typical examples of single action, mechanical non traditional machining processes. Nonconventional machining processes may use chemical or thermal means of removing material. The main reasons for choosing nontraditional machining processes are. 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. 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. Nonconventional fabrication, ecm, edm, pmc, waterjet. This book covers all possible topics needed in an undergraduate machining processes course. Download scientific diagram classification of nontraditional machining processes 8 from publication. 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. Extremely hard and brittle materials are difficult to machine by traditional machining processes such as turning, drilling, shaping and milling.
Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or. 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. Ntm mechanical engineering btech 6th ptu previous years. 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. A brief comparison of conventional and nonconventional fabrication methods. Chemical machining in chemical machining material is removed from selected areas of a workpiece by immersing it in a chemical reagent. 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. 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. Pdf nontraditional manufacturing processes by gary f. No conventional non conventional 1 direct contact of tool and workpiece. Classification of nontraditional machining processes 8. Nontraditional machining processes selection using. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. 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.
New and novel materials because of their greatly improved chemical, mechanical and thermal properties are sometimes impossible to machine using traditional machining processes. Tools are non conventional technique like laser beam, electric arc etc. Abrasive water jet machining awjm electrochemical processes. 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. An expert system for nontraditional machining process. This tree lists various manufacturing processes arranged by. Machining techniques introduction to non traditional machiniing techniques by mr. The advantages over conventional machining are covered, as are the economics of. A strategic development of green manufacturing index.
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