Blended ceramic particles are mixed rapidly with liquid binder to form free flowing slurry that is poured quickly over a pattern. 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. Lecture 1 fundamentals of metal forming there are four basic production processes for producing desired shape of a product. In low carbon steel sheet metal, the minimum radius of a bend should be one. October 24 pdf higher engineering mathematics by b.
During the process of free forging the reduction of the forging piece height is realized between two parallel surfaces of ham. Metal in powder form is costlier than in solid form. Analysis and technology in metal forming 29 influence of strainrate i. This site is like a library, you could find million book here by using search box in the header. Metal forming and the finiteelement method oxford series. More than 90% of smelted metal is processed by different methods of metal forming. Design for manufacturability sheet metal guidelines bends for the ease of manufacturing, multiple bends on the same plane should occur in the same direction. Electroforming definition electroforming is a metal forming process that forms thin parts through the electroplating process. Nptel mechanical engineering forming sheet metal operations other sheet. A first stage where the volume of the part is generated a second stage where the. Some of the original topics have been omitted or given in an abbreviated form in appendices. Hot forming is the deformation carried out at temperatures above recrystallization temperatures.
Lecture series on manufacturing processes i by prof. In recent years, enormous progress has been made in the analysis of forming of complex shapes using. By mechanical working processes, the given shape and size of a machine part can be achieved with great economy in material and time. Metal forming, metal joining welding, machining and machine tool operations.
Pdf press tools are commonly used in hydraulic, pneumatic, and mechanical presses to produce components at high volumes. Apr 12, 2018 principles of metal forming technology. Exact analytical solutions for metalforming processes and operations are. Sheetmetal characteristics elongation the capability of the sheet metal to stretch without necking and failure. Metal forming and the finiteelement method oxford series on advanced manufacturing kobayashi, shiro, oh, sooik, altan, taylan on. All books are in clear copy here, and all files are secure so dont worry about it. Metal is then allowed to pass through a open base copper mold. Forming is also classified as cold forming, hot forming or warm forming.
This stress is maximum along the plane is called shear plane. Various metal forming techniques and their analysis, viz. Forming nptel web course free ebook download as pdf file. Hot working and cold working operatio slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Metal forming processes full notes ebook free download pdf. A press is a sheet metal working tool with a stationary bed and a powered ram can be driven towards the bed or away from the bed to apply force or required pressure for various metal forming operations. Smart material, adaptive structures and intelligent mechanical systems iitk.
Download metal stamping nptel book pdf free download link or read online here in pdf. Metal stamping nptel pdf book manual free download. Sep 25, 2011 fundamentals of metal forming overview of metal forming material behavior in metal forming temperature in metal forming. Jul 27, 2009 lecture series on manufacturing processes i by prof.
Practically all metals, which are not used in cast form are reduced to some standard shapes for subsequent processing. Nptel provides elearning through online web and video courses various streams. Some common metal forming processes are schematically given in fig 1. If the material of the workpiece is ductile, the material flows plastically along the shear plane, forming chip, which flows upwards along the face of the tool. Recent advances in metal forming processes authorstream.
All content including discussion forum and assignments, is free. Understanding basic principles of metal forming and further being applied by. Metal forming and the finiteelement method oxford series on advanced manufacturing. September 17 pdf a textbook of strength of materials by dr. Metal forming is the main method of making metal products and semifinished products.
Understanding basic principles of metal forming and further being applied by engineers. Recent advances in metal forming processes authorstream presentation. Industrial visits for exposer to various metal forming process and report preparation based on observations and learning. Module 3 selection of manufacturing processes nptel. Nptel mechanical engineering forming sheet metal operations. Luders bands can be eliminated by coldrolling the thickness by 0. Metal forming is a very important manufacturing operation. For all devices, there is a need to go from semiconductor to metal. Advances in metal forming expert system for 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.
Find materials for this course in the pages linked along the left. After mixing and forming the mold shape, the plaster molds are dried and baked in an oven to remove any water remaining in the mold. Thus the metal gets compressed very severely, causing shear stress. Many of these techniques used for metal deposition can be used to deposit other materials. These are casting, machining, joining welding, mechanical fastners, epoxy, etc. This article presents the technique of limit analysis, both upper and lower bound.
It enjoys industrial importance among various production operations due to its advantages such as cost. It provides a detailed discussion of specific forming processes, such as deep drawing, rolling, bending extrusion and stamping. Heads of bolts, nails are made by heading, which is an upsetting process. Review of various methods for experimental measurements of friction in metal forming processes. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 3 of.
Principles of metal forming technology course swayam. Read online metal stamping nptel book pdf free download link book now. Nptel mechanical engineering forming oint initiative of iits and iisc funded by mhrd page 5 of 10. Fundamentals of metal forming overview of metal forming material behavior in metal forming temperature in metal forming. Advances in sheet metal forming technologies 63 fig. Machining processes provide desired shape with good. Nptel course on manufacturing processes i, pradeep kumar et al. Principles of metal forming technology iit roorkee. Manufacturing processes i nptel online videos, courses. Yieldpoint elongation lueders bands on lowcarbon steels and almg alloys. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Finite element formulation for the simulation of hot sheet metal forming processesj somnath ghosh and noboru kikuchi department of mechanical engineering and applied mechanics, the university of michigan, ann arbor, mi 48109, u. It is important that one chooses an effective a reliable technique based on the specific requirements of the end user. The relative positions of bed and ram in the press are.
These methods have been useful in predicting forming loads, overall geometry changes of deforming workpieces, and qualitative modes of metal flow, and in determining approximate optimum process conditions. Metal forming, third edition this book is designed to help the engineer understand the principles of metal forming and analyze forming problems both the mechanics of forming processes and how the properties of metals interact with the processes. Metal forging is an integral part of any manufacturing process in the modern industrial setup. Powder metallurgy pm is a metal working process for forming precision metal components from metal powders. Large set of manufacturing processes in which the material is deformed plastically. Based on the nature of deformation force applied on the material, during forming, metal forming processes are also classified into several types as shown below. Jun 15, 2019 download metal stamping nptel book pdf free download link or read online here in pdf. Casting process exploit the fluidity of a metal in liquid state as it takes shape and solidifies in a mold. Copper, for example, exists as nearly pure metal in certain parts of the world. Mechanics of sheet metal forming college of engineering. Metal casting processes indian institute of technology guwahati.
Metal spinning typically involves the forming of axisymmetric components over a rotating mandrel using rigid tools or. These methods have been useful in predicting forming loads, overall geometry changes of deforming workpieces, and qualitative modes of metal flow, and in determining approximate optimum process. The casting does not require wax patterns and there. Fundamental concepts of metal forming technology nptel. Once the certificates are printed, reprint of certificates with corrections will be done only by paying additional fees. Metal forming processes, also known as mechanical working processes, are. We started easyengineering as a passion, and now its empowering many readers by helping them to make educational contents from their blog. A line diagram of a typical pres is explained in the figure 2. Sheet metal forming with elastic tools is commonly used in. Metal spinning is a term used todescribe the forming of metal into seamless, axisymmetric shapes by a combination of rotational motion and force ref 14. Metal forming processes indian institute of technology. Metal forming is possible in case of such metals or alloys which are sufficiently malleable and ductile. Design for manufacturability sheet metal guidelines. Nptel mechanical engineering forming oint initiative of iits and iisc funded by mhrd page 8 of 10.
Manufacturing process study notes handwritten free pdf. Steel is such an important material because of its tremendous. Forming web course course outline stress strain relations, stress and strain transformations, elastic and plastic behaviour, yield criteria, elementary principles of metal forming cold, hot and warm working, effect of parameters such as temperature, strain rate, friction. When you know all aspects of metal forging, you will benefit a lot if your product parts made from the metal forging process. Avoid large sheet metal parts with small bent flanges. Plastic properties of metals are used during the process of metal forming. Advances in sheet metal forming technologies 65 special presses to stand for high pressures up to 80 mpa in the pressure chamber. Mechanical engineering manufacturing processes i nptel. Manufacturing companies producing metals supply metals in form of ingots which are obtained by casting liquid metal into a square cross section. Metal spinning typically involves the forming of axisymmetric components over a rotating mandrel using rigid tools or rollers.
796 267 598 316 1407 1193 1644 314 1619 415 761 126 417 1530 377 758 968 510 1544 1655 1461 1270 244 394 442 819 840 637 96 881