Metal forming process mfp study materials pdf free. In this article we will discuss about the metal forming processes. Materials which do not become brittle at higher strain rates alone can be explosive formed. The key difference between bulk deformation and sheet metal forming is that in bulk deformation, the work parts have a low area to volume ratio whereas, in sheet metal forming, the area to volume ratio is high deformation processes are important in transforming one shape of a solid material into another shape. Principles of metal forming technology course nptel.
Spinning can be performed by hand or by a cnc lathe. Fundamentals of forming fundamental concepts of metal forming. More than 90% of smelted metal is processed by different methods of metal forming. Metal forming is the main method of making metal products and semifinished products. Chandramouli associate deanresearch sastra university, thanjavur6 401. Metal casting is a labour intensive process automation. Introduction to rolling processes introduction rolled productsrolling mills typical rolling processes quiz questions. Metal forming process, mfp study materials, engineering class handwritten notes, exam notes, previous year questions, pdf free download. Other sheet metal forming operationsquiz questions. Sheet stretch forming sheet stretch forming is a fast, economical, and accurate way to form a large panel from a metal sheet. Thus we have both hot and cold metal forming operations. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 1 of sheet metal operations other sheet metal forming processes r.
Nptel provides elearning through online web and video courses various streams. Metal forming is a very important manufacturing operation. This article presents the technique of limit analysis, both upper and lower bound. Electromagnetic forming em forming or magneforming is a type of high velocity, cold forming process for electrically conductive metals, most commonly copper and aluminium. In forming processes, such as forging, the instantaneous flow stress can be found from the flow curve, as the stress required to cause a given strain or deformation. At the same time, two basic process variants can be identifieddirect and indirect press hardening. The fundamental of metal forming theory, the theories of processes of rolling, forging and stamping as well as drawing and pressing extrusion have been given. The forging process is very important in industrial metal manufacture, particularly in the extensive iron and steel manufacturing industry. Aerospace metal forming technologies aries alliance shaping a better future 3. The forming processes are affected by the rates of strain used. Manufacturing companies producing metals supply metals in form of ingots which are obtained by casting liquid metal into a square cross section. Recent advances in metal forming processes authorstream presentation. The first one is sheet metal cutting, second one is sheet metal bending or forming and the last one is known as deep drawing.
Understanding basic principles of metal forming and further being applied by engineers and. Metal forming processes, also known as mechanical working processes, are primary shaping processes in which a mass of metal or alloy is subjected to mechanical forces. Manufacturing processes i nptel online videos, courses. Hello metallurgical engineering students, i am sharing the theory of metal forming pdf class lecture notes, ebook, book as per the metallurgical engineering course syllabus. The advantages of metal forming processes include no wastage of the raw material, better mechanical properties of the product and faster production rate. Nptel course on manufacturing processes i, pradeep kumar et al. Important casting terms nptel course on manufacturing processes i, pradeep kumar et al. Improved lubrication if lubricating film is maintained. J s campbell, principles of manufacturing materials and processes.
Certificate will have your name, photograph and the score in the final exam with the breakup. Sheet metal forming massachusetts institute of technology. Lecture series on manufacturing processes i by prof. The temperature of work is increases due to adiabatic heating. Fundamentals of metal forming overview of metal forming material behavior in metal forming temperature in metal forming. In extrusion, for example, the flow stress considerably changes during the forming process as the material gets work hardened considerably. Various metal forming techniques and their analysis, viz. Hydro forming cheap tooling, no net thinning, slowish, high formability.
The concept of stress, deformation and failure, mechanics of metalworking and analysis of different metal working processes will be covered during the whole course. It provides a detailed discussion of specific forming processes, such as deep drawing, rolling, bending extrusion and stamping. Introduction to metal forming technology classification of metal working processes. Metal forming metal forming is a general term for a large group, that includes a wide variety of manufacturing processes. Fundamental concepts of metal forming technology nptel. Mainly sheet metal process can be divided into three types. Sheet metal characteristics elongation the capability of the sheet metal to stretch without necking and failure. Pdf finite element simulation of sheet metal forming. The author highlights recent developments of metal forming technologies and explains sound, new and powerful expert system techniques for solving advanced engineering problems in metal forming. For each course, reporting of issues comes with its own deadline date and time check the exam scoreecertificate as soon as you receive our notification. Principles of metal forming technology course swayam. This is a commonly used manufacturing process that helps in manufacturing the parts for tons of known and unknown purposes.
Nocnon traditional abrasive machining processes ultrasonic, abrasive jet abrasive water jet machining nocoperations management nocphase equilibria in materials. Metal spinning design consideration and parameter of. Advances in sheet metal forming technologies 65 special presses to stand for high pressures up to 80 mpa in the pressure chamber. Machining is the process of removing the material in the form of chips by means of a wedge shaped tool. Electroforming definition electroforming is a metal forming process that forms thin parts through the electroplating process. Kalpakjian 1989 broadly classifies all forming processes as sheet or bulk forming, and places both conventional and shear spinning in the group of sheet metal forming processes, together with. Hot working and cold working operatio slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Sheet metal forming with elastic tools is commonly used in. Under the action of such forces, the shape and size of metal piece undergo a change. Review of various methods for experimental measurements of friction in metal forming processes. Once the certificates are printed, reprint of certificates with corrections will be done only by paying additional fees. Metal spinning, also known as spin forming or spinning or metal turning most commonly, is a metalworking process by which a disc or tube of metal is rotated at high speed and formed into an axially symmetric part. Metal forming and machining processes springerlink. Exact analytical solutions for metal forming processes and operations are.
Metal forming processes full notes ebook free download pdf. And also the below mentioned article provides a lecture note on metal forming processes. Industrial visits for exposer to various metal forming process and report preparation based on observations and learning. Pisa communicated by paul dawson, cornell university ak. Sheet metal operations other sheet metal forming processes nptel. Theory of metal forming quick revision pdf notes, book. Metal forming processes are characteristic in that the metal being processed is plastically deformed to shape it into a desired geometry. Metal forging is a metal forming process that involves applying compressive forces to a work piece to deform it, and create a desired geometric change to the material. High energy rate forming herf processes introduction. What are the requirements for superplastic forming. Forming nptel web course free ebook download as pdf file.
Understanding basic principles of metal forming and further being applied by engineers and metallurgists directly contribute towards improvement in production in the industries. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. The process involves stretching the sheet to a calculated yield point and forming it over a tool. In this article we mainly focus on sheet metal cutting operations and.
A coil used for ring compression is shown in figure 1. Manufacturing processes i nptel online videos, courses iit video lectures. Metal forming processes indian institute of technology. Sheet metal operations other sheet metal forming processes. There are four basic production processes for producing desired shape of a product. Definitions and classification of metal forming processes. Simulation of metalforming processes by the finite. Difference between bulk deformation and sheet metal forming. Shear spinning on the other hand, is classified as a compressive forming process, along with the bulk forming processes of rolling. Rolling process has a high efficiency of 75 to 95% due to its low redundant deformation and smaller deformation zone geometry. It is a combination of processes based on hot sheet metal forming and hardening of the component fabricated, something which gives maximum component strengths in excess of r m 1500 nmm 2. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 3 of. It enjoys industrial importance among various production operations due to its advantages such as cost.
Metal forming processes full notes ebook free download pdf practically all metals, which are not used in cast form are reduced to some standard shapes for subsequent processing. Plastic properties of metals are used during the process of metal forming. The characteristics of the shop equipment for metal forming and technology of the main metal forming methods have been given in separate sections. Therefore it need a free signup process to obtain the book. Mechanical engineering manufacturing processes i nptel.
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