Advanced manufacturing process for micro system fabrication. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Mechanical engineering manufacturing processes ii nptel. Basic working principle, configuration, specification. Wolfram volk, pierre charvet bmw ag, munich, germany summary. The concept of nc was proposed in the late 1940s by john parsons who recommended a method of automatic machine. Superfinishing processes, honing, lapping and superfinishing. To learn about various unconventional machining processes, the various process parameters and their influence on performance and their applications. Metal forming processes full notes ebook free download pdf.
Special coatings called maskants protect areas from which the metal is not to be removed. 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. 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. It includes detailed information to gain insight into the manufacturing processes which are new, unconventional and list out the the. Sinha, mechanical engineering department, iit kanpur. Practically all metals, which are not used in cast form are reduced to some standard shapes for. 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. Ppt machining centers powerpoint presentation free to. Lecture series on manufacturing processes ii by prof. Machine design ii video lecture study material in dvd and sd card.
Processes likeabrasive jet machining water jet machininglaser beam machininghot machiningplasma arc machininghave also been included. Cnc application and design worcester polytechnic institute. 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. Instructional objectives i manufacturing process ii. Edm machining process is also known as spark erosion machining. 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. Abrasive machining involves material removal by the action of hard, abrasive particles. In abrasive jet machining abrasive particles are made to impinge on work material at high velocity. Nptel mechanical engineering advanced machining processes. In the next section of the paper, the recent research accomplishments at the servo, process, and. Machining is a metal removal process, which can be accomplished by applying force on raw material by means of a cutting tool. Download nontraditional manufacturing processes by gary f. Non traditional manufacturing processes an overview.
An introduction to machining practices cornell university. Joining of materials joining includes welding, brazing, soldering, adhesive bonding of. Sharma, department of mechanical engineering, iit roorkee. Pdf if you could, follow the hijackthis instructions as a favor to me. In sheet metal forming practice, we distinguish five basic modes of deformation. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Manufacturing process study notes handwritten free pdf. According to me, some of the best videos for mechanical are. 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.
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. Manufacturing process specific advantages and limitations by fundamentals of manufacturing processes. 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. Lecture series on manufacturing processes i by prof. 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. 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. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Powder metallurgy pdf nptel powder metallurgy pdf nptel powder metallurgy pdf nptel download. The word cnc came into existence in 7th when microprocessors and microcomputers replaced integrated circuit ic based controls used for nc machines. In electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Grinding operation is one of the machining processes which consume the highest specific cutting energy with very less material removal rate.
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. 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. Nptel mechanical engineering manufacturing processes i. Manufacturing process books pdf free download erexams. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered.
Virtual engineering and planning process in sheet metal forming dr. Casting process exploit the fluidity of a metal in. Dfm is the method of design for ease of manufacturing of the collection of parts that will form the product after assembly. Shrinkage all metals shrink when cooling except bismuth. 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. 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. Features such as smooth shiny surfaces, smalldiameter deep holes in a part, threaded section, and threaded holes all require further manufacturing operations. Welding is a metal joining process in which two or more parts are. Modern machining processes presents unconventional machining methods which are gradually commercial acceptance. Beside the full 3d design process of parts and tools the simulation of sheet. Mechanical engineering manufacturing processes i nptel.
Feb 21, 2010 this is a short presentation on cnc machines. When it comes to machining, mces expertise and technology is up to any ask. Nptel mechanical engineering manufacturing processes ii. Computer aided manufacturing cam introduction to computer. Additionally, different kinds of joining processes welding and their process parameters are discussed. Paul,department of mechanical engineering, iit kharagpur. Downloadelements of manufacturing processes by bs nagendra parasher pdf. 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.
Metal casting is a labour intensive process automation. This process is known as dressing of grinding wheel and the whole process takes 15 to 20 minutes to operate. The common nontraditional machining processes are described in this section. 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. Advanced machining processes nptel online videos, courses iit video lectures. Fundamental of modern manufacturing materials, 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 level of accuracy and in required time. Replica of the object to be made by the casting process with some modifications. 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. Nptel mechanical engineering advanced manufacturing. Me 206 manufacturing processes 1 department academic. A machining process is called nontraditional if its material removal mechanism is basically different than those in the traditional processes, i. 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.
Turning a machining process in which a singlepoint tool remove material from the surface of a rotating work piece. 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. Introduction to basic manufacturing process and workshop. Conventional machining processes and machine tools moduleiv. 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. Sukhatmes course on heat and mass transfer, based on incropera.
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. Which are the best and worst video lectures made by the. Lecture notes design and manufacturing ii mechanical. 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. 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. The introduction of abrasives to the fluid jet enhances the machining efficiency and is known as abrasive water jet machining. Metal forming processes indian institute of technology.
Pdf nontraditional manufacturing processes by gary f. Workpiece material, properties, design, temperature. 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. During this machining process, a small portion of metals is also eroded away, leaving a small cater. Nowadays the engineering and planning process in sheet metal forming is fundamentally supported by cad and cae systems. A simulation study of a spur gear machining and gcode generation for cnc machine. 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. The life of the grinding wheel is described as the time period between two successive dressings. Control of machining processes university of michigan. 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 continue browsing the site, you agree to the use of cookies on this website.
We have built a division comprised of highly skilled people who live and breathe the process. Continuous process improvement is a critical part of lean manufacturing. Hybrid machining processes hybrid production manufacturing means the combination of processes machines in order to produce parts in a more efficient and productive way. Find materials for this course in the pages linked along the left. 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. This mode of deformation is found mostly on smooth bottoms of shallow parts and in hydroforming processes. Nptel provides elearning through online web and video courses various streams. They are mainly used to assemble many parts to make a system. Analysis of part drawing and assembly drawing this is the basis of the machining. The use of abrasives to shape parts is probably the oldest material removal process. Manufacturing processes i nptel online videos, courses. Materials are removed by traversing in a direction parallel to the axis of. There are 10 steps to draw up machining process flow chart. These are casting, machining, joining welding, mechanical fastners, epoxy, etc.
This mode is typical the material flow from the flange towards the. Introduction to manufacturing processes introduction. This lecture describes the fundamentals of manufacturing including various definitions, need, processes, new technologies and applications etc. Advanced machining processes nptel online videos, courses. Mechanical engineering advanced machining processes nptel. Jet of abrasive particles is carried by carrier gas or air. Classification of metal removal processes and machine tools. A poorly designed process results in overuse of manufacturing resources men and machines. These manufacturing process som study notes will help you to get conceptual deeply knowledge about it. Cutting as a mechanical process is the removal of material resulting through use of force, typically shear and compressive.