Forging process analysis and preform design by harshil parikh, bhavin mehta, jay gunasekera department of mechanical engineering ohio university, athens, ohio 45701 rob mayer, president queen city forging company, cincinnati, ohio 45226 abstract the purpose of this paper is to optimize the forging process and reduce the required force. Control of machining processes university of michigan. Metal casting is a labour intensive process automation. Find materials for this course in the pages linked along the left. In electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Machine design ii video lecture study material in dvd and sd card. They are mainly used to assemble many parts to make a system. We are here to provides you the best study notes from best coaching like made easy, ace academy etc and lecture notes from best institutions like mit open course, iit nptel, crec tirupati, washington, middle east technical university etc. Jet of abrasive particles is carried by carrier gas or air. Advanced machining processes nptel online videos, courses. During this machining process, a small portion of metals is also eroded away, leaving a small cater. Dfm is the method of design for ease of manufacturing of the collection of parts that will form the product after assembly. Advanced manufacturing process for micro system fabrication.
Superfinishing processes, honing, lapping and superfinishing. Non traditional manufacturing processes an overview. Fundamental of modern manufacturing materials, processes. Metal forming processes indian institute of technology. Laser beam machining lbm is one amongst the foremost widely used thermal energy based noncontact kind advance machining method which may be applied for nearly whole vary of materials. Advanced machining processes nptel online videos, courses iit video lectures. 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. Turning a machining process in which a singlepoint tool remove material from the surface of a rotating work piece.
Manufacturing process specific advantages and limitations by fundamentals of manufacturing processes. Mechanical engineering advanced machining processes nptel. Feb 21, 2010 this is a short presentation on cnc machines. Nptel mechanical engineering advanced manufacturing. Machining is a metal removal process, which can be accomplished by applying force on raw material by means of a cutting tool. Additionally, different kinds of joining processes welding and their process parameters are discussed. Lecture series on manufacturing processes i by prof. A simulation study of a spur gear machining and gcode generation for cnc machine. 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. The use of abrasives to shape parts is probably the oldest material removal process. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience.
Joining of materials joining includes welding, brazing, soldering, adhesive bonding of. Introduction to manufacturing processes introduction. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. Continuous process improvement is a critical part of lean manufacturing. Modern machining processes presents unconventional machining methods which are gradually commercial acceptance. Optimization of the manufacturing process dfa is a tool used to select the most cost effective material and process to be used in the production in the early stages of product. Metal forming processes full notes ebook free download pdf.
Instructional objectives i manufacturing process ii. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. Sukhatmes course on heat and mass transfer, based on incropera. Although cutting is certainly a cutting process, grinding, milling, and drilling are also cutting processes as they result in material removal through the application of appropriate forces. Downloadelements of manufacturing processes by bs nagendra parasher pdf. Manufacturing process study notes handwritten free pdf. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered. We have built a division comprised of highly skilled people who live and breathe the process. Generally, process improvements are made regularly with new efficiencies embedded within the process.
Jun 03, 2014 chemical machining chemical machining is a well known nontraditional machining process is the controlled chemical dissolution of the machined workpiece material by contact with a strong acidic or alkaline chemical reagent. Analysis of part drawing and assembly drawing this is the basis of the machining. Paul,department of mechanical engineering, iit kharagpur. Me 206 manufacturing processes 1 department academic. Machining process flow chart is an important document to guide machining, while also ensuring the quality of processing, based on the machining process allows higher productivity and lower cost. Shrinkage all metals shrink when cooling except bismuth. Pdf if you could, follow the hijackthis instructions as a favor to me. Cutting as a mechanical process is the removal of material resulting through use of force, typically shear and compressive. This lecture describes the fundamentals of manufacturing including various definitions, need, processes, new technologies and applications etc. Manufacturing processes i nptel online videos, courses.
Basic working principle, configuration, specification. If you continue browsing the site, you agree to the use of cookies on this website. There are 10 steps to draw up machining process flow chart. Nowadays the engineering and planning process in sheet metal forming is fundamentally supported by cad and cae systems. Features such as smooth shiny surfaces, smalldiameter deep holes in a part, threaded section, and threaded holes all require further manufacturing operations. When it comes to machining, mces expertise and technology is up to any ask. In sheet metal forming practice, we distinguish five basic modes of deformation. Machining is one of the basic and very important courses for the mechanical undergraduate students. The high velocity stream of abrasives is generated by converting pressure energy of carrier gas or air to its kinetic energy and hence high velocity jet. Classification of metal removal processes and machine tools. Grinding operation is one of the machining processes which consume the highest specific cutting energy with very less material removal rate. Sharma, department of mechanical engineering, iit roorkee. Machining operation metal component engineering limited.
Exercises 6 summary summary the edition addresses issues essential to modern manufacturing, ranging from traditional topics such as casting, forming, machining, and joining, to advanced topics such as the fabrication of nanomaterials. Introduction to basic manufacturing process and workshop technology by rajender singh ebook covers most of the syllabus of manufacturing processes and workshop practices for mechanical engineering students prescribed by different engineering colleges and universities. Machining is the process of material removal in which a cutting tool removes unwanted material from a work piece to produce desired shape and size. Beside the full 3d design process of parts and tools the simulation of sheet. In the next section of the paper, the recent research accomplishments at the servo, process, and. Manufacturing process books pdf free download erexams. Cnc application and design worcester polytechnic institute. This mode of deformation is found mostly on smooth bottoms of shallow parts and in hydroforming processes. Lecture notes design and manufacturing ii mechanical. These are casting, machining, joining welding, mechanical fastners, epoxy, etc.
Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Nptel provides elearning through online web and video courses various streams. Virtual engineering and planning process in sheet metal forming dr. 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 level of accuracy and in required time. This process is known as dressing of grinding wheel and the whole process takes 15 to 20 minutes to operate. Lecture series on manufacturing processes ii by prof. Sinha, mechanical engineering department, iit kanpur.
Wolfram volk, pierre charvet bmw ag, munich, germany summary. These all manufacturing process books pdf free download here provide also useful for the study other state and india level exams like ssc jen, bsnl je and jto exams, railways jen and section engineers, drdo, dmrc, metro, many other state level and india level engineering exams. Pdf nontraditional manufacturing processes by gary f. Mechanical engineering manufacturing processes i nptel. Mar 18, 20 the economics of precision machining can be understood with just 4 factors machining cost, material cost, tool cost, and cost of nonproductive time setup costs.
Powder metallurgy pdf nptel by the end of this lecture, the student will learn the phq 9 pdf pfizer basic principles of powder metallurgy processes and the critical issues to be. The concept of nc was proposed in the late 1940s by john parsons who recommended a method of automatic machine. Virtual engineering and planning process in sheet metal forming. Burr formation during machining process is a vital role in the assembly lines, even though it is a non value added process but also care should be taken while machining due to non avoiding output. The word cnc came into existence in 7th when microprocessors and microcomputers replaced integrated circuit ic based controls used for nc machines. Casting process exploit the fluidity of a metal in. The life of the grinding wheel is described as the time period between two successive dressings. Hybrid machining processes hybrid production manufacturing means the combination of processes machines in order to produce parts in a more efficient and productive way. Nptel mechanical engineering manufacturing processes ii. 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. Which are the best and worst video lectures made by the. Mechanical engineering manufacturing processes ii nptel.
Introduction to basic manufacturing process and workshop. This mode is typical the material flow from the flange towards the. Practically all metals, which are not used in cast form are reduced to some standard shapes for. Replica of the object to be made by the casting process with some modifications. In abrasive jet machining abrasive particles are made to impinge on work material at high velocity. Abrasive machining involves material removal by the action of hard, abrasive particles. Materials are removed by traversing in a direction parallel to the axis of. Advanced machining processes electrical, chemical, thermal, hydrodynamic, lasers automation began when lathes were introduced in 1700s now have computer numerical control cnc machines machining operations are a system consisting of. Nptel mechanical engineering manufacturing processes i.
Chemical machining chemical machining method may be the oldest nontraditional machining method which is used to shape copper with citric acid in the ancient egypt in 2300 bc there are several factors contributing to the popularity of chemical machining processes as follow 1 chemical machining process is mature and well established. The common nontraditional machining processes are described in this section. Workpiece material, properties, design, temperature. Welding is a metal joining process in which two or more parts are. According to me, some of the best videos for mechanical are. Nptel mechanical engineering advanced machining processes. A machining process is called nontraditional if its material removal mechanism is basically different than those in the traditional processes, i. An introduction to machining practices cornell university. Cnc machines introduction cnc machines are the most standardized form of manufacturing the parts required to produce a product and the earliest cnc machines received code instructions through hardwired controllers, which meant that the programming format could not be altered in 1970 s and in this presentation we can see developments in the tools, tool holding devices, work.
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. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Conventional machining processes and machine tools moduleiv. Ppt machining centers powerpoint presentation free to. Edm machining process is also known as spark erosion machining. The grinding wheel rotates at 3600 rpm, has a diameter d of 150 mm, thickness b of 25 mm, and c 5 grains per mm2. To learn about various unconventional machining processes, the various process parameters and their influence on performance and their applications. These manufacturing process som study notes will help you to get conceptual deeply knowledge about it. 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. Special coatings called maskants protect areas from which the metal is not to be removed. A poorly designed process results in overuse of manufacturing resources men and machines. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects.
Processes likeabrasive jet machining water jet machininglaser beam machininghot machiningplasma arc machininghave also been included. Modifications a addition of pattern allowance b provision of core prints c elimination of fine details a pattern allowances pattern dimensions are different from final dimension of casting. Computer aided manufacturing cam introduction to computer. Download nontraditional manufacturing processes by gary f. Powder metallurgy pdf nptel powder metallurgy pdf nptel powder metallurgy pdf nptel download. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the.
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