These processes are unconventional in the sense that they do not employ a conventional tool for metal removal. Introduction to nontraditional machining iit kanpur. By using the energy in the process thermal physics. The book has both conventional and nonconventional machining process to teach you effectively. In unconventional machining, a form of energy is used to remove unwanted material from a given workpiece.
Understand the compare traditional and nontraditional machining process and recognize the need for nontraditional machining process. Nontraditional machining the definitive guide machinemfg. 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. The classification of unconventional machining processes is given below. Nonconventional machining processes, multi criteria decision making, selection, moora method. This is due to material removal rate mrr decreases with increased hardness of the work material.
Non traditional machining ntm or non conventional machining ncm, is a kind of machining technology which is different from traditional machining process and equipment. If you have any query regarding this article, ask by commenting. 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. Nonconventional machining processes selection using multiobjective 1449 journal of engineering science and technology november 2015, vol. 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. Jun 20, 2016 hence the machining process which utilizes other machining methods are termed as unconventional machining or non traditional machining or advanced machining processes or modern machining processes. In todays industry, a large number of ncmps is applied such as laser beam machining lbm, abrasive jet machining ajm, electrical discharge machining edm, wire electrical discharge machining wedm, plasma arc machining pam. On successful completion of this module, the student should understand the fundamental concepts of non conventional manufacturing technologies and the differences with the conventional processes. It combines the physical energy electricity, magnetism, sound, light and heat, chemical energy and even mechanical energy to applied on the machining position. Pdf me6004 unconventional machining processes lecture.
Classification of unconventional machining processes. This channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals. Nonconventional manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal, electrical or chemical energy. Pdf unconventional machining processes senthil kumar. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. 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. Types of unconventional machining process mech engg. 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. The truth about mobile phone and wireless radiation dr devra davis duration. The advent of hard materials for aerospace applications have made the machining process by conventional methods very difficult and time consuming.
Pdf me6004 unconventional machining processes ump books. Nov 15, 2017 this channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals. Both are machining processes and thus used for removing excess material. Nontraditional machining processes are widely used to manufacture geometrically complex and precision parts for aerospace, electronics and automotive. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Department of mechanical engineering, indian institute of technology kanpur. Non conventional process promoted longer tool life because no direct contact is made between the tool and the materials. Unconventional machining processes introduction and.
Non traditional machining ntm processes are typically. Unconventional machining processes can be broadly classified into several types based on four main criteria. 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. Conventional machining in addition to modern cnc machines, we also have machines for conventional machining which are indispensable for our production. Pdf selection of the most suitable nonconventional machining process ncmp for a given machining application can be viewed as. In recent years there has been a massive growth in the usage of the non traditional machining process. Nontraditional machining mechanical engineering, iitb. Introduction we all know that the term machinability refers to the case with which a metal can be machined to an acceptable surface finish.
Manufacturing processes can be broadly divided into two groups and they are primarymanufacturing processes and secondary manufacturing processes. Hence the machining process which utilizes other machining methods are termed as unconventional. Nonconventional tools are more accurate and precise than the conventional tool. May 05, 2017 19 videos play all non conventional machining processes learn and grow predicting the future of the web development 2020 and 2025 duration.
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. Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or. Mechanical energy based unconventional machining processes e. Electrically non conducting materials cannot be processed by edm. They are used for the production of spare parts and smaller series of products even just 1 piece which are just as necessary in different productions.
The main reasons for choosing non traditional machining processes are. Nontraditional machining processestypes,explanation,adv. Non traditional 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. Apr 02, 2017 this is all about nontraditional machining process, requirements, types, advantages and disadvantages. It is a nonconventional mechanical machining method. When these machines are employed, they are many advantages over the traditional machining process. Various similarities and differences between conventional machining and nontraditional machining ntm processes are given below in table format. Note for unconventional machining process ump by jntu heroes. With ever increasing demand for manufactured goods of hard alloys and metals, such as inconel 718 or titanium, more interest has gravitated to nonconventional machining methods.
Tools are nonconventional technique like laser beam, electric arc etc. Conventional and non conventional machining processes. Difference between conventional and nonconventional machining processes are. Similarities between conventional machining and ntm. Conventional and nonconventional processes written by hassan abdel gawad elhofy covers the fundamentals machining by cutting, abrasion, erosion and combined processes. No conventional non conventional 1 direct contact of tool and workpiece. Jan 09, 2018 among the major non conventional 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. Nontraditional machining, also known as nonconventional machining or modern machining method, generally refers to the machining method of removing or adding materials with energy of electricity, heat energy, light energy, electrochemical energy, chemical energy, sound energy and special mechanical energy, so as to realize.
Difference between conventional and nonconventional. Nadcap nonconventional machining ac7116 expert resource. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. Pdf the role of nonconventional machining processes ncmps in todays manufacturing environment has been well acknowledged. Examples of conventional machining processes are turning, boring, milling, shaping, broaching, slotting, grinding etc. Pdf unconventional machining processes local author by dr. Pdf selection of nonconventional machining processes using the. Abrasion and shear when small and hard metallic particles are made vibrating against the workpiece to be machined, the material is removed by shear action and abrasion. This is not true when it comes to nonconventional machining processes. 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. 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. Non traditional manufacturing processes an overview. This process cannot be applied to the largesized workpiece, as size for the workpiece is helpless by the size of setup.
Pdf me6004 unconventional machining processes lecture notes. This book covers all possible topics needed in an undergraduate machining processes course. What is the difference between conventional and non conventional machining processes or how the non conventional machining process differs. Several types of nontraditional machining processes have been developed to meet extra. Cutting tool is harder than work piece at room temperature as well as under machining conditions nonconventional manufacturing processes is defined as a group of processes. Non conventional machining processes selection using multiobjective 1449 journal of engineering science and technology november 2015, vol. Tools are non conventional technique like laser beam, electric arc etc. Download nontraditional manufacturing processes by gary f. Nontraditional machining method is an advanced method used to overcome the problems of traditional machining methods.
Comparison between conventional and nonconventional machining. Machining processes machining is one of the processes of manufacturing in which the specified shape to the work piece is imparted by removing surplus material. Conventional machining also costs in terms of tool wear and in loss of quality in the product owing to induced residual stresses during manufacture. Conventional machining processes mostly remove material in the form of. Nontraditional manufacturing processes or unconventional machining processes. 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. 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. Pdf nonconventional machining processes selection using multi.
The machining characterization of ammcs material is necessary for high qualitycost effective product development. Consequently, non conventional machining processes have emerged. Many unconventional machining processes, have found widespread applications in industry. The role of nonconventional machining processes ncmps in todays manufacturing environment has been well acknowledged.
Subscribe our channel for more interesting articles. Non conventional tools are more accurate and precise than the conventional tool. Difference between conventional and non conventional machining processes are. Consequently, nonconventional machining processes have emerged. Unit 1 introduction unconventional machining process need classification brief overview the capital cost of ecm is very high when compared with traditional mechanical. Pdf nontraditional manufacturing processes by gary f. Non conventional manufacturing process conventional manufacturing. Conventional machining processes and machine tools module. Note for unconventional machining process ump by jntu. The adequate form of the high value of mrr can be achieved as compared to other non conventional machining processes.
Several types of nontraditional machining processes have developed to better machining condition. The nontraditional machining methods include, ultrasonic machining, laser beam machining, water jet machining, abrasive water jet machining, electron beam machining, etc. Analytic hierarchy process, analytic network process. The processes are non traditional or nonconventional in the sense that they dont employ a conventional or traditional tool for material removal, instead, they directly utilize some form of energy for metal machining. If you like this article, dont forget to share it on your social networks. Conventional and nonconventional processes book pdf by hassan abdelgawad elhofy machining remains a hugely important process in modern engineering and manufacturing practice, and students need to be aware of the vast host of methods and technologies available to meet all sorts of precision and surface finish requirements. In conventional machining processes, there is a risk of tool wearing since physical contact is required to perform the job. 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. The aim of the mtcs non conventional 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. This book is written to serve the needs of under graduate students embarking introductory course in unconventional machining processes. Nonconventional machining processes machining the process of precise removing metal to form or finish a part, either with traditional methods like turning, drilling, milling, and grinding, or with nontraditional methods. All subtractive type manufacturing process are conventional manufacturing process in which w. The process of impinging the highspeed stream of abrasive particles by highpressure gas or air on the work surface through a nozzle and metal removal occurs due to. Conventional machining process involved tool wearing as there is a physical contact between the tool and the work piece.
Non conventional machining process book pdf youtube. Selection of nontraditional machining process ijert. Advanced machining process mechanical engineering mcq. Unconventional machining process need classification brief overview. This is not true when it comes to non conventional machining processes. The former onesprovide basic shape and size to the material as per designers requirement. What is the difference between conventional and non.
Advancements in nonconventional machining of aluminum. Nonconventional machining processes free download as powerpoint presentation. Conventional machining processes and machine tools moduleiv. Nontraditional machining is also called advance manufacturing process. Pdf unconventional machining processes local author by. Advanced nontraditional machining processes 303 work.
These processes are generally used when traditional methods are not technically or economically feasible. Materials are removed by traversing in a direction parallel to the axis of. Comparison between conventional and non conventional machining. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes.
No conventional nonconventional 1 direct contact of tool and workpiece. On successful completion of this module, the student should understand the fundamental concepts of nonconventional manufacturing technologies and the differences with the conventional processes. Unconventional machining process sasurie college of engineering. This paper gives an introduction and a brief overview of various unconventional processes that are in practice nowadays. Classification of nontraditional machining is based on following factors. Both are subtractive manufacturing processes topdown approach. Pdf nonconventional machining processes selection using. How is classification of nontraditional machining done. These nonconventional machining processes can be categorized in reference to type of machining actions involved in removal of material from the workpiece surface. Senthil kumar, ars publications the book unconventional machining processes for engineering and technology studies. 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.