Material removal may occur with chip formation or even no. Nontraditional machining processes selection using data envelopment analysis dea article pdf available in expert systems with applications 387. 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 hstr alloys, fiberreinforced composites, ceramics, refractories and other difficulttomachine alloys having higher strength, hardness. The process of nonconventional machining, on the other hand, employs modern and latest technology in processing. With our wide array of tools and technologies, and the innovation and creativity of our engineers and operators, unconventional auxiliary processes are performed to produce the most challenging design features other suppliers may tell you that a design feature can only be produced with a significant investment in tooling and a long lead time. For example, abrasive water jet operations use mechanical energy, but material is removed by erosion. Nontraditional manufacturing processes is defined as a group of processes. The guide to nontraditional animation techniques 1st edition. In this process, a high velocity water jet is used to machining work piece. Introduction to nontraditional machining iit kanpur. Nontraditional manufacturing processes crc press book this book provides a convenient, single source of information on advanced machining, material forming, and joining processes.
Primary manufacturing processes this provide basic shape and size to the material as per designers requirement. Non traditional machining ntm methods are a group of processes that. Ntm processes are classified into main four categories according to the type. Traditional manufacturing processes casting forming sheet metal processing powder and ceramics processing plastics processing cutting joining surface treatment a free powerpoint ppt presentation displayed as a flash slide show on id. Abrasive waterjet, electrical discharge, laser, and ultrasonic. So cost consciousness is very much expected in producing a. Nontraditional machining traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves. 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 hstr alloys, fiberreinforced composites, ceramics, refractories and other difficulttomachine alloys having higher strength, hardness, toughness and other diverse material properties. Unlike lbm, this process requires a vacuum, and hence workpiece size is limited by the chamber size. Manufacturing processes can be broadly divided into two groups 1.
Nontraditional machining processes chap 9 in textbook. 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. Nontraditional machining processes flashcards quizlet. Slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Machining techniques introduction to non traditional machiniing techniques by mr. Development of a multiattribute selection procedure for. Ultrasonic machining or usm nontraditional machining unconventional machining e4education for detail note visit. Water jet machining wjm also called water jet cutting, is a nontraditional machining process in which highvelocity jet of water is used to remove materials from the surface of the workpiece.
Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. This process involves no contact between the machine tools and material. Nontraditional manufacturing processes crc press book. 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. 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. Nontraditional machining processes are widely used to manufacture geometrically complex and precision parts for aerospace, electronics and automotive industries.
Nontraditional machining can be thought of as operations that do not use shear as their primary source of energy. Difference between conventional and nonconventional machining processes are. 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. 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. Abstract in nontraditional machining, considerable amount of material is removed from the raw material to get the desired profile. Nontraditional processes ntp nontraditional cutting. In addition, to this low forces are applied who preventthe work piece and surface from damage, so required accuracy can be achieved.
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 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. Ppt traditional manufacturing processes powerpoint. Prometheegaia software, ecm emerges out as the most suitable. Start studying chapter 25 nontraditional machining and thermal cutting processes. Nhk world jinnovators precision machining with ultrasound. Non traditional manufacturing processes an overview. Nontraditional machining ntm methods are a group of processes that. A new nontraditional machining method using cavitation. 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. No conventional nonconventional 1 direct contact of tool and workpiece.
Selection of nontraditional machining process ijert. Sheet metal prototyping processessecondary operation. Introduction we all know that the term machinability refers to the case with which a metal can be machined to an acceptable surface finish. There are varying processes and examples to generate the flames of creation, so as one. These nonconventional machining processes can be categorized in reference to type of machining actions involved in removal of material from the workpiece surface. Nontraditional and advanced machining technologies crc. Mechanical machining i jet machining and ultrasonic machining usm are typical examples of single action, mechanical non traditional machining processes.
Non traditional machining projects for mechanical students. Ppt advanced and hybrid machining process powerpoint. Comparison between conventional and nonconventional machining. Highenergybeam machining waterjet and abrasive jet machining. 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. 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. 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. 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. Water jet machining is an environment friendly, nontraditional machining process. 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. Non traditional machining processes, are employed where traditional. Chemical reaction between liquid reagent and workpiece. The uncertainties regarding the capabilities, the large number of alternatives offered, the lack of versatility and the shortage of experienced planners of non traditional machining processes ntmps require the development of a structured process selection procedure.
A casebased reasoning approach for nontraditional machining. In this process, high velocity water jet strikes at working surface and metal removed due to erosion by water particle. 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. Nontraditional machining and thermal cutting processes.
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. Nontraditional manufacturing processes all process in detail. 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. Types, advantages, limitations, machine tool, cutting tool, chips. Seminar on non conventional machining report download abstract. Traditional machining processes consist of turning, boring, drilling, reaming, threading, milling, shaping, planing, and broaching, as well as abrasive processes such as grinding, ultrasonic machining, lapping. Additionally, he has interested in product design, animation, and project design. These processes are generally used when traditional methods are not technically or economically feasible. This fact leads metal removal, a more expensive process when compared to other manufacturing processes. The algorithms and solved examples included make modeling of metal forming and machining processes of value to postgraduates, senior undergraduates, lecturers and researchers in these fields. What is the difference between conventional and non.
New and novel materials because of their greatly improved chemical, mechanical and thermal properties are sometimes impossible to machine using traditional machining processes. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. This volume covers the technologies, machine tools, and operations of nontraditional machining processes, and assisted machining technologies. Unconventional machining processes introduction and. Water jet machining working principle, advantages and. Tools are nonconventional technique like laser beam, electric arc etc.
Machining with a difference thats what nonconventional machining is all about. 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. Yet, there are very few really good text books covering fundamentals, mathematical concepts and numerical problems. Nontraditional machining ntm processes are now being. In the past, nontraditional machining processes were developed for applications that are not practical or cost effective when using traditional machining methods.
Learn vocabulary, terms, and more with flashcards, games, and other study tools. Animated lathe machine,dimus tutorials,traditional. Nonconventional tools are more accurate and precise than the conventional tool. Spark ignition engine runs by petrol whereas compression ignition engine runs by diesel. In nontraditional machining ntm processes the material is removed in the form of atoms or molecules, individually or in groups. Nontraditional machining includes a large scope of technologies. Seminar on non conventional machining report download. Extremely hard and brittle materials are difficult to machine by traditional machining processes such as turning, drilling, shaping and milling. In sla process, the software firstly interprets the cad data and slices it. It is a process in which a piece of raw material is cut into a desired shape and size by means of sharp cutting tools called a machining process.
Difference between conventional and nonconventional. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed. Waterjet machining a schematic illustration of waterjet machining. 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. Selection of nontraditional machining processes using. Wjm can be used to cut softer materials like plastic, rubber or wood. Nontraditional machining processes selection using. 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. Why nontraditional processes are important need to machine newly developed metals and nonmetals with special properties that make them difficult or impossible to machine by conventional methods need for unusual andor complex part geometries that cannot easily be accomplished by conventional machining need to avoid surface damage that.
Pdf nontraditional machining processes selection using. Cogundevelopment of a multiattribute selection procedure for nontraditional machining processes. Compared to conventional machining processes, ntm processes possess. Objective of presentation at the end of this presentation, audience will be aware of merits of non conventional machining processes over their traditional counterparts. It describes available technologies that use tools, such as high velocity material jets, pulsed magnetic fields, light beams, electrochemical reactions, and more. Electrical discharge machining edm is one of the most widely used nontraditional machining processes. Carbide tools replaced most of the hss tools in machining processes. Two separate chapters of this volume deal with the machining techniques of difficulttocut materials, such as stainless, super alloys, ceramics, and compos.
Nontraditional machining lab solheim manufacturing. Selection of nontraditional machining process written by rohith r, shreyas. International journal for research in applied science. Learn how lathe machine works and operations that are possible on lathe. Latest trends in machining preface it all started sometime in september 1961, when i joined hindustan motors.
1313 663 1036 993 1209 1389 524 351 1533 613 683 81 685 992 1597 121 850 947 422 1617 530 968 1566 302 1567 1482 928 1143 42 1188 281 377