Pdf unconventional machining processes local author by. Hence the machining process which utilizes other machining methods are termed as unconventional. I high mrr i high production rate while processing di cult to machine. The answers will fall into place as experience is gained. In unconventional machining, a form of energy is used to remove unwanted material from. Unconventional machining processes lecture notes, study. Pdf me6004 unconventional machining process researchgate. Advanced machining process mechanical engineering mcq questions and answers home category mechanical engineering mcq questions and answers advanced machining process 1 the laser beam machining process can be carried out, when the media for energy transfer between tool and workpiece is. 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. Nontraditional machining is also called advance manufacturing process. Unconventional machining processes lecture notes, study material and important questions, answers free download as pdf file. The overall investment of underground machine hall is less than those of the superstructure of a surface power house of similar dimensions. To learn about various unconventional machining processes, the various process parameters and their influence on performance and their applications.
After achieving the merits of nonconventional machining methods, efforts are being made for cross process innovations to improve the machining characteristics. Unconventional machining processes textbook is one of the famous textbook for engineering students. Nielsen book data summary completely revised and updated, this second edition of fundamentals of machining processes. What is the limitation of conventional machining processes. It is employed to machine hard and brittle materials both electrically conductive and non conductive material having hardness usually greater than 40 hrc. Conventional machining process metal is removed by means of tool which is harder than work piece and they both are in contact with each other demerits of conventional machining process disposal and recycling of the chips are difficult and tedious process large cutting forces are involved in this process. Product requirement i complex shapes i machining in inaccessible areas i low tolerances say, 0. Mar 11, 2016 in electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Unit i introduction unconventional manufacturing processes is defined as a group of processes that remove excess material by various. Some machining processes are combined together for achieving higher machining rates, greater product accuracy, and the best possible surface characteristics.
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. Bulk deformation metal forming forging, rolling, extrusion sheet metal processes shearing, bending, drawing, etc. Edm is also known as spark erosion machining or simply spark machining. Me6004 unconventional machining processes lecture notes. The common nontraditional machining processes are described in this section. Srikrishnan assistant professor mechanical engineering institute of aeronautical engineering autonomous dundigal, hyderabad 500 043. Online study material, lecturing notes, assignment, reference, wiki and important questions and answers. 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. Computer numerical control pdf notes cnc notes pdf sw. Pdf me6004 unconventional machining processes lecture notes. Pdf me6004 unconventional machining processes ump books.
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 used for traditional manufacturing processes. Difference between conventional and nonconventional. Dec 15, 2016 machining operationscontd turning turning is a machining process in which a cutting tool, typically a nonrotary tool bit, describes a helical tool path by moving more or less linearly while the work piece rotates. 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. This is due to material removal rate mrr decreases with increased hardness of the work material. Manufacturing of plastic materials injection molding, etc. Grinding grinding is the most common form of abrasive machining. Electric discharge machining edm working principleequipmentsprocess parameterssurface finish and mrr electrode tool power and control circuitstool wear dielectric flushing wire cut edm applications.
Several types of nontraditional machining processes have developed to better machining condition. Features such as smooth shiny surfaces, smalldiameter deep holes in a part, threaded section, and threaded holes all require further manufacturing operations. Unconventional machining process is defined as a group of p rocesses that remove excess material by various techniques involving mechanical, thermal, electrical or chemica l. The machining process so developed is called hybrid machining processes hmps kozak and rajurkar, 2000. Introduction manufacturing processes can be broadly divided into two groups and they are primary manufacturing processes and secondary manufacturing processes.
During this machining process, a small portion of metals is also eroded away, leaving a small cater. Book download link provided by engineering study material esm. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. Edm machining process is also known as spark erosion machining. Classification of nontraditional machining is based on following factors. Unconventional machining process anna university question. Unconventional machining process sasurie college of engineering. The following list of questions is to get you thinking about some important concepts during the design process. Technological improvements of nonconventional machining processes can be achieved by combining different physiochemical action on the material being processed. Removal of unwanted material in the form of chips in order to create a geometric shape market.
Introduction to nontraditional machining iit kanpur. It is the material removal process where the material is removed or machined by the impact. The process is actually the reverse of electroplating with some. Download unconventional machining processes local author book by dr. Conventional machining processes and machine tools moduleiv. 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 manufacturing technology i. Fundamentals of machining processes by hassan abdel contains total 16 chapters, such as cutting tools, maintainability, micro machining, high speed machining, abrasives etc.
Process details of wcedm are almost similar to edm with slight difference. Electrochemical machining is one of the most unconventional machining processes. Machining cutting action involves shear deformation of work material to form a chip as chip is removed, a new surface is exposed figure 21. The details of the process are indicated in the line diagram shown in figure 5. Please switch to hard cover of fundamentals of machining process. Unconventional machining processes me8073, me6004 anna. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. 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 manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal. Metal casting sand casting and other casting processes materials joining arc welding, tig, ebw, paw, etc. Unconventional machining processes notes 1 download pdf. Pdf ma8452 statistics and numerical methods snm books, lecture notes, 2 marks with answers, important part b marks questions, question bank. Ultrasonic machining is a mechanical type nontraditional machining process. Me6004 unconventional machining processes lecture notes ppt. Unconventional machining process linkedin slideshare. In unconventional machining, a form of energy is used to remove unwanted material from a given workpiece. Class lecture notes for third year,sixth semester unconventional machining process subject code. Conventional and nonconventional processes covers the fundamentals machining by cutting, abrasion, erosion, and combined processes.
Me2026 is available here in pdf formats for you to download. Unconventional machining processes form an important part of the chapter of machining processes in the subject of manufacturing engineering for gate mechanical engineering. How is classification of nontraditional machining done. Jul 21, 2012 using electrolyte as a conducting medium between conducting medium between tool and work piece.
Automatic tool changer pallet shuttles automatic workpart positioning cnc turning center. Conventional and nonconventional processes written by hassan abdel gawad elhofy covers the fundamentals machining by cutting, abrasion, erosion and combined processes. Unconventional machining processes textbook pdf free download unconventional machining processes textbook pdf free download. Unconventional machining processes introduction and. This book is mainly useful for mechanical engineering students. These notes are according to the r09 syllabus book of jntu. Pdf unconventional machining process radhika talupula. Unconventional machining process need classification brief overview. In particular, the unconventional machining actions such as.
Unconventional machining process ump study materials. It is a material cutting process that engages an abrasive tool whose cutting elements are grains of abrasive material known as grit. 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. Process of fabrication of miniature structures features of. This textbook is also useful to most of the students who are preparing for competitive exams. I high surface nish nanolevel ra value i miniaturization of products examples. Read through this list and familiarize yourself with these. Design and manufacturing sequential process design manufacturing waste resource, waste time concurrent process all disciplines are involved in the earliest stages of product design progress concurrently so iterations results in less wasted effort and time key to success. List the unconventional machining processes under mechanical energy thermal and chemical energy category. Cannot be used for machining castings or hot rolled steel, since hard outer scale will damage the cutter. Traditional machining processes consist of turning, boring, drilling. The metal removal takes place due to the erosion caused by the electric spark. Unconventional machining process note pdf download. The wire edm process can cut intricate components for the electric and aerospace industries.
Unconventional machining process anna university question paper. The conventional hydroelectric power stations are usually located overground at the foot of a dam or a hill slope on the banks of a river. Write the short notes about recent development of unconventional machining process 9. If you cannot answer all of these questions, do not get frustrated since some of them are open ended. Pdf me6004 unconventional machining processes lecture notes, books, important 2 marks questions with answers, important partb 16 marks questions. New and novel materials because of their greatly improved chemical, mechanical and thermal properties are sometimes impossible to machine using traditional machining processes. Nontraditional processes ntp nontraditional cutting processes. High velocity electrons strike the work surface to generate heat used for accurate cutting need vacuum chamber.
Unlike lbm, this process requires a vacuum, and hence workpiece size is limited by the chamber size. In this short notes section we will cover the first unconventional machining process electric discharge machining edm. Unconventional machining process unconventional forming process need for unconventional machining process harder and difficult to machine materials, can be machined easily and precisely. Jun 20, 2016 the advent of hard materials for aerospace applications have made the machining process by conventional methods very difficult and time consuming. Briefly explain under the classification of type of energy and mechanism involved. Unconventional machining process imp qusts pdf file ump important questions please find the attached pdf file of unconventional machining process importan. Building of machines, structures, or process equipment by cutting, shaping and assembling components made from raw materials. Pdf nonconventional machining processes selection using. 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. Classification of ucm classification of ucm based on type of energy required to shape the. When these machines are employed, they are many advantages over the traditional machining process. Nontraditional machining traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves. Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or.
Me6004 unconventional machining processes syllabus notes. Unconventional machining process, ump study materials, engineering class handwritten notes, exam notes, previous year questions, pdf free download. 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. Unit ii mechanical energy based processes 10 abrasive jet machining water jet machining abrasive water jet machining ultrasonic machining. Unconventional machining processes textbook pdf free. Advanced machining process mechanical engineering mcq. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. The unconventional machining processes do not employ a conventional or traditional tool for metal removal. This book is written to serve the needs of under graduate students embarking introductory course in unconventional machining processes. Computer numerical control notes pdf cnc pdf notes cnc notes pdf file to download are listed below please check it link. Tool details the tool used in wcedm process is a small diameter wire as the electrode. 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. Many aspects in the field of machining have been covered in detail in the literature, but this book provides a comprehensive coverage of the field in a single book.
Write the short notes about recent development of unconventional machining. All questions carry equal marks 1 a classify unconventional machining processes based on basic mehanism involved in the process and medium for tranfer of enrgies and type of energy. 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. 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. 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. Its major difference of process details with edm process details are described below.
Senthil kumar, ars publications the book unconventional machining processes for engineering and technology studies. Unconventional machining process imp qusts ump important. Non traditional machining processes linkedin slideshare. Machining centers machining center highly automated machine tool capable of performing multiple machining operations under cnc control. Notes download pdf unconventional machining processes question bank 1 download pdf unconventional machining processes me6004 may june 2016 question paper. 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. An introduction to machining practices cornell university. Nonconventional machining processes selection using multiobjective 1449 journal of engineering science and technology november 2015, vol. In r and r15,8units of r09 syllabus are combined into 5units in r and r15 syllabus. Download pdf of unconventional machining process note mechanical engineering offline reading, offline notes, free download in app, engineering class handwritten notes, exam notes, previous year questions, pdf free download. The process was first developed in 1950s and was originally used for finishing edm surfaces. Non traditional manufacturing processes an overview. Lecture notes on unconventional machining process prepared by mr. A machining process is called nontraditional if its material removal mechanism is basically different than those in the traditional processes, i.