The truth about mobile phone and wireless radiation dr devra davis duration. Comparison between conventional and non conventional machining. Since ultraprecision machine tools can achieve higher level of positioning accuracy, micromachining by cutting is possible. 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. Conventional machining process have many advantages over non conventional machining process as they are more precise, now wear of tool, no heat generation etc. Introduction to nontraditional machining iit kanpur.
People have been exploring and researching new machining methods, and nontraditional machining is put forward and developed under this condition. Hence the machining process which utilizes other machining methods are termed as unconventional. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. Electrical discharge machining edm is one of the most widely used nontraditional machining processes. Nadcap nonconventional machining ac7116 expert resource. Nontraditional manufacturing processes is defined as a group of processes that remove. Nov 15, 2017 conventional and non conventional machining processes best engineer.
The main attraction of edm over traditional machining processes such as metal cutting using different tools and grinding is that this technique utilises thermoelectric process to erode undesired materials from the work piece by a series of discrete electrical sparks between the work piece and the electrode. In unconventional machining, a form of energy is used to remove unwanted material from a given workpiece. These processes are generally used when traditional methods are not technically or economically feasible. Note for unconventional machining process ump lecture notes, notes, pdf free download, engineering notes, university notes, best pdf notes, semester, sem, year.
Both are machining processes and thus used for removing excess material. This book is written to serve the needs of under graduate students embarking introductory course in unconventional machining processes. Comparison between conventional and nonconventional machining. In conventional machining process a tool, which is harder than the work piece is forced on the work piece. Introduction we all know that the term machinability refers to the case with which a metal can be machined to an acceptable surface finish. Pdf me6004 unconventional machining processes ump books. The processes are non traditional or non conventional 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. Book download link provided by engineering study material esm. 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. Although cutting is the most conventional machining process, continuous improvement in machining precision enabled us to apply this process in micromachining. 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 non traditional methods that use electricity, heat, or chemical reaction. Unconventional machining process sasurie college of engineering.
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. And, metal removal takes place due to shearing action. An unconventional machining process or non traditional machining process is a special type of machining process in which there is no direct contact between the tool and the workpiece. Senthil kumar, ars publications the book unconventional machining processes for engineering and technology studies. Pdf nonconventional machining processes selection using multi. Nontraditional machining processestypes,explanation,adv. May 04, 2018 there are two types of manufacturing process. If you like this article, dont forget to share it on your social networks. This is due to material removal rate mrr decreases with increased hardness of the work material.
Difference between conventional and non conventional machining processes are. Examples of conventional machining processes are turning, boring, milling, shaping, broaching, slotting, grinding etc. The primary limitation is that conventional machining requires that a machinist be trained in the use of the appropriate machine tools to complete the tasks at hand. Various similarities and differences between conventional machining and non traditional machining ntm processes are given below in table format. Difference between conventional and nonconventional machining processes are. Differences between conventional and non conventional machining processes. Nontraditional machining the definitive guide machinemfg. The conventional machining processes are not capable of machining hard and heat resisting materials into complex shape. The comparison of various nonconventional machining process can be done.
Conventional and non conventional machining processes. Each process has distinct capabilities and is suitable for specific purposes. The non traditional machining methods include, ultrasonic machining, laser beam machining, water jet machining, abrasive water jet machining, electron beam machining, etc. Pdf the role of nonconventional machining processes ncmps in todays manufacturing environment has been well acknowledged. Non conventional machining process book pdf youtube. Non traditional machining ntm or non conventional machining ncm, is a kind of machining technology which is different from traditional machining process and equipment. Feb 03, 2020 the truth about mobile phone and wireless radiation dr devra davis duration. There is no physical contact between the tool and work piece, in some non. Conventional machining an overview sciencedirect topics. Classification of unconventional machining processes based.
Non conventional manufacturing process conventional manufacturing. Jun 20, 2016 the advent of hard materials for aerospace applications have made the machining process by conventional methods very difficult and time consuming. The comparison of various non conventional machining process can be done. No conventional nonconventional 1 direct contact of tool and workpiece. Pdf unconventional machining processes local author by. Pdf unconventional machining processes local author by dr. This paper gives an introduction and a brief overview of various unconventional processes that are in practice nowadays. 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. Conventional machining processes and machine tools moduleiv. 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. Understand the compare traditional and nontraditional machining process and recognize the need for nontraditional machining process.
Difference between conventional machining and nontraditional. A machining process is called nontraditional if its material removal. Unconventional machining processes introduction and. Nov 22, 2018 in the case of a drilling operation, by conventional methods, you can drill a hole of minimum 5mm and less than that is not possible because the drill bit cannot able to sustain the vibrations developed during the machining process and thats the reason, less than 5 mm holes can be done by advanced methods where there is a need of micromachining. The book has both conventional and nonconventional machining process to teach you effectively. Nontraditional manufacturing processes or unconventional machining processes. 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.
Types of unconventional machining processes based on energy used mechanical energy processes, chemical energy processes. Materials are removed by traversing in a direction parallel to the axis of. Subscribe our channel for more interesting articles. Nonconventional tools are more accurate and precise than the conventional tool. Similarities between conventional machining and ntm. Non traditional machining method is an advanced method used to overcome the problems of traditional machining methods. Depending on workpiece material and the condition of the tool, unit powerrequirements in machining range between 0. The unconventional machining use for the machine the hard and brittle materials such as carbides, stainless steel, hastelloy, nitralloy, waspalloy, and any other that cannot be machined by a conventional process using the conventional machines such as lathe, milling, shaper, planer etc.
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. 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. Difference between conventional and nonconventional. Tools are nonconventional technique like laser beam, electric arc etc. Conventional machining process involved tool wearing as there is a physical contact between the tool and the work piece. The unconventional machining is also called as nontraditional machining. Advanced nontraditional machining processes 303 work. Pdf unconventional machining processes senthil kumar. Wire electrical discharge machining wedm is a versatile, most useful non conventional machining process used to machine conductive materials with high precision for cutting intricate shapes. Pdf nonconventional machining processes selection using. Pdf selection of nontraditional machining process researchgate.
Non traditional machining processes, also called advanced manufacturing. Tools are non conventional technique like laser beam, electric arc etc. This book covers all possible topics needed in an undergraduate machining processes course. Non traditional manufacturing processes an overview. Extrusion process and its types by basic engineering duration. Mechanical machining ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes.
All subtractive type manufacturing process are conventional manufacturing process in which w. Nontraditional machining processes are widely used to manufacture geometrically complex and precision parts for aerospace, electronics and automotive industries. Note for unconventional machining process ump by jntu heroes. Dec 29, 2012 in nonconventional machining process there was no physical contact between workpiece and the tool. Conventional machining processes mostly remove material in the form of. What is the limitation of conventional machining processes. Non conventional tools are more accurate and precise than the conventional tool. Pdf nontraditional machining ntm processes are now being widely used to generate intricate and accurate shapes in materials, like. Wire electrical discharge machining wedm is a versatile, most useful nonconventional machining process used to machine conductive materials with high precision for cutting intricate shapes. The cutting tool and work piece are always in physical contact with relative motion with each other, which results in friction and tool wear. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. If you have any query regarding this article, ask by commenting. Apr 02, 2017 this is all about nontraditional machining process, requirements, types, advantages and disadvantages. The unconventional machining is also called as non traditional machining the unconventional machining use for the machine the hard and brittle materials such as carbides, stainless steel, hastelloy, nitralloy, waspalloy, and any other that cannot be machined by a conventional process using the conventional machines such as lathe, milling, shaper, planer etc.164 1363 1456 504 1270 1005 519 1208 990 449 1359 1016 589 472 1250 1315 917 346 1175 1441 918 1230 473 255 248 1211 300 770 1203 1394 185 625 1503 1023 68 116 886 356 129 89 1270 41 1391 191