Machining with a difference thats what nonconventional machining is all about. Identify the need for non traditional machining processes vi. You can call 5748312176 or honk to make a curbside payment during normal. Electrochemical machining reverse of electroplating an electrolyte acts as a current carrier and high electrolyte movement in the toolworkpiece gap washes metal ions away from the work piece anode before they have a chance to plate on to the tool cathode. The tool acts a cathode, and is immersed in a dielectric insulating fluid, and the workpiece acts as an anode. In this sense, they are no more unconventional or nontraditional. Name desirable features of feed and spindle drives of cnc machines introduction the most critical and specialised activity. Computer aided manufacturing cam introduction to computer.
These courses are based on the curriculum of iits and iisc provided under nptel. Electrical discharge machining edm has emerged as an outstanding approach for cutting conductive metals that are otherwise difficult or impossible to be cut with traditional machining 1. Module 9 non conventional machining version 2 me, iit kharagpur lesson 35 introduction and abrasive. The common non traditional machining processes are described in this section. Mechanical machining ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. Pdf nontraditional machining processes by means of. Now you can have the most practical, and informative guide on non traditional machining ever published. Now you can have the most practical, and informative guide on nontraditional machining ever published. Jain department of mechanical engineering, indian institute of technology kanpur, kanpur208016, india. Development development of harder and difficult to machine materials such as hastalloy, nitra alloy, waspalloy, nimonics, carbides, stainless steel, heat resisting steels and many other hstr alloys used in aerospace. Jain advanced machining processes allied publishers pvt. Nptel provides elearning through online web and video courses various streams.
Describe the major features of an interpolator for a contouring cnc system c. 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. Lecture notes institute of aeronautical engineering. Nontraditional machining can be thought of as operations that do not use shear as their primary source of energy. Machining and machine tool operations mechanics of machining basic machine tools single and multipoint cutting tools, tool geometry and materials, tool life and wear economics of machining principles of non traditional machining processes principles of work holding, design of jigs and fixtures. Several types of nontraditional machining processes have been developed to meet extra required machining conditions. That has all been changed, since the publishing of carl sommer s latest book, the non traditional machining handbook.
Learn for free, pay a small fee for exam and get a certificate. When these processes are employed properly, they offer many advantages over nontraditional machining processes. Manufacturing processes i nptel online videos, courses. Ultrasonic machining feed mechanism, head design and other aspects. Me 338 manufacturing processes ii department academic. Basics of fixturing and metrology are also covered in this course. In this category of non traditional machining electrical energy is used in the form of electrochemical energy or electroheat energy to erode the material or to melt and vapourized it respectively.
Machining processes are important machining process in an industry. Differentiate between conventional and non traditional machining iv. Non traditional machining processes linkedin slideshare. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process.
In this sense, they are no more unconventional or non traditional. Paul,department of mechanical engineering, iit kharagpur. Jul 21, 2012 the most typical electrolyte is an ionic solution, but molten electrolytes and solid electrolytes are also possible. That has all been changed, since the publishing of carl sommer s latest book, the nontraditional machining handbook. Modern machining processes presents unconventional machining methods which are gradually commercial acceptance. View notes lm35 from mechanical 102 at indian institute of technology, kharagpur. Due to covid19, new paris telephone front lobby is closed to the public. Generaly,in the field of manufacturing,the term of machining means removal of material from a raw. The company was founded in 1901 by a group of 18 farmers and serviced 325 customers in the new paris area. His research areas includes modeling and analysis of manufacturing processes, systems sensing and control of traditional and nontraditional macro, micro and nano manufacturing processes. The course is aimed at teaching the pros and cons of different processes, so that one can apply this knowledge to the selection of a process for making a part to the required. Traditional and non traditional optimization tools. Objective of presentation at the end of this presentation, audience will be aware of merits of non conventional machining processes over their traditional counterparts.
Mechanical machining i jet machining and ultrasonic machining usm are typical examples of single action, mechanical non traditional machining processes. When do we need nontraditional processes very high hardness and the strength of the material. Inhouse machining of complex and less machinable jobs. Function of electrolyte carrying current between tool and work peice remove products of machining and other insoluble products from cutting region dissipate heat produced in the operation. Chapter 8 conclusions and future scope in this chapter, the contributions and the limitations of this research. New and novel materials because of their greatly improved chemical, mechanical and thermal properties are sometimes impossible to machine using traditional machining processes. Electricaldischarge machining is based on the erosion of metals by spark discharge.
Normally axis of rotation of feed given to the workpiece. Modern machining processes tata mcgrawhill, new delhi, 2007. We have provided over a century of service to our community. As contrasted to the additivejoining processes covered in the course manufacturing processes 1viz. Nptel material is available for free on nptel website.
A new nontraditional machining method using cavitation. Center for non traditional manufacturing research at university of nebraskalincoln, united states. Nonconventional machining processes as viable alternatives. As the voltage builds up, eventually the fluid breaks down and sparks. Noncommercial energy is often ignored in energy accounting. Distinguish and compare open loop control and closed loop cnc d.
Electrical discharge machine the traditional machining processes rely on harder tool or abrasive material to remove the softer material whereas nontraditional machining processes such as edm uses electrical spark or thermal energy to erode unwanted material in order to create desired shape. 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. 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. Download nontraditional manufacturing processes by gary f.
In addition, non traditional manufacturing processes, like electrodischarge machining edm, laser beam machining, plasma cutting etc are also a part of this course. Reduced cycle time by machining complex components using a single setup. Electrochemical machining, electroplating or electro discharge machining are the examples work on this principle. Classify different non traditional machining processes v. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Nontraditional machining processes flashcards quizlet. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Improved surface finish and tool life by tilting the tool to maintain optimum tool to part contact all the times. Ultrasonic machining national institute of technology.
His research areas include advanced finishing and nanofinishing processes, magnetorheological finishing mrf process, advanced non traditional machining processes, micromachining processes. If you are not able to download lectures due to bandwidth constraints, you can obtain the courses in dvds by paying a nominal fee to cover the cost of storage media and distribution. The rotating tool consists of multiple cutting edges multipoint cutting tool. Nptel, online courses and certification, learn for free. Omirou introduction machine tools tool materials cutting fluids 2 the machining is the most broad technological process used in manufacturing. Several types of non traditional machining processes have been developed to meet extra required machining conditions. Brief introduction of nonconventional machining processes. Pdf nontraditional manufacturing processes by gary f.
Identify the characteristics of conventional machining ii. Milling operation is distinguished from other machining operations on the. Conventional machining processes and machine tools pdf plz post vijay. Review of basic machining processes and the mechanics of chip formation duration. 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. Ultrasonic machining effects of various inputs on the output. Ultrasonic machining is a mechanical type non traditional machining process. Kinematics of machines nptel online videos, courses iit.
Nontraditional machining companies referenced in handbook. New paris telephone company offers lifeline assistance to eligible customers. New paris telephone npt is a locally owned telephone company headquartered in new paris indiana. Jan, 2016 lecture 35 non traditional manufacturing duration. Non traditional manufacturing processes an overview. 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. Ultrasonic machining is a mechanical type nontraditional machining process. Non traditional machining questions and answers sanfoundry.
Principles of metal cutting, cutting tools, their materials and applications, geometry of single point cutting tool, cutting fluids and their functions, basic machine tools and their applications, introduction to nontraditional machining processes edm, usm, chm, ecm, lbm, ajm, and. Ultrasonic machining is a nontraditional process, in which abrasives contained in a slurry are driven against the work by a tool oscillating at low amplitude 25100 microns and high frequency 1530 khz. Nontraditional machining traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves. Non traditional machining handbook, hardcover isbn. 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. In this category of nontraditional machining electrical energy is used in the form of electrochemical energy or electroheat energy to erode the material or to melt and vapourized it respectively. 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 to shape metal parts machining is the most versatile and accurate of all manufacturing processes in its capability to produce a diversity of part geometries and.
Non conventional machining processes linkedin slideshare. In this operation the workpiece is fed against a rotating cylindrical tool. Lecture series on manufacturing processes ii by prof. Lm35 module 9 nonconventional machining version 2 me iit. Milling machine is one of the important machining operations. Milling operation is distinguished from other machining operations on the basis of orientation between the tool axis and the feed direction, however, in other operations like drilling, turning, etc. Non traditional abrasive machining processes ultrasonic, abrasive jet and abrasive water jet machining. Instructional objectives after learning the lesson students should be able to a. Instrumentation lecture notes 8 module 5 cnc machines. Lm35 module 9 nonconventional machining version 2 me.
Identify the characteristics of non traditional machining iii. Machining and machine tool operations mechanics of machining basic machine tools single and multipoint cutting tools, tool geometry and materials, tool life and wear economics of machining principles of nontraditional machining processes principles of work holding, design of jigs and fixtures. 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. Processes likeabrasive jet machining water jet machininglaser beam machininghot machiningplasma arc machininghave also been included. Nontraditional machining handbook advance publishing. May 19, 2014 nontraditional machining can be thought of as operations that do not use shear as their primary source of energy. In addition to time savings, improved accuracy can also be achieved as positioning errors between setups are eliminated.
Laser properties speed is given by material, its thicknes and power of the machine. Cutting rates for various materials and thicknesses using a co2 laser ipm material thickness 0. Ultrasonic machining is a non traditional process, in which abrasives contained in a slurry are driven against the work by a tool oscillating at low amplitude 25100 microns and high frequency 1530 khz. Nontraditional machining is recommended when we need which of the following features.
Kinematics of machines nptel online videos, courses. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered. Ashish umarkar advanced manufacturing processes amp12154 unit no. When these processes are employed properly, they offer many advantages over non traditional machining processes. Non traditional machining authorstream presentation. The course takes us through the fundamentals of different machining processes, and optimization of a chain of processes through which a part undergoes. A new nontraditional machining method using cavitation process. For example, abrasive water jet operations use mechanical energy, but material is removed by erosion. Describe the basic mechanism of material removal in ajm vii. Regarding these, non traditional 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.
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