Cutting force is the main factor for the study of cutting process. Me 3217 metal cutting principles credits and contact hours. Chapter 4 metal matrix composites princeton university. Welcome viewers to the 2nd lecture of the course metal cutting. It can be used either for a one or a two semester course. This would be followed by a descriptive study of the machine tools like lathe, milling. Contentcommon features of machining processes, geometry of single point tool and tool signature, concept of speed, feed and depth of cut applicable to various machining processes. Sheet metal operations cutting and related processes.
Cutting tool machining wikipedia, the free encyclopedia. Multiple cutting edge tools more than one cutting edge motion relative to work usually achieved by rotating drilling and milling use rotating multiple cutting edge tools. The book covers the main areas of interest in metal machining technology namely machining processes, machine tools, metal cutting theory and cutting tools. Orthogonal cutting video, geometry, forces and power demonstration cutting equipmenttools design for manufacturing. Manufacturing tooling cutting tool design nageswara rao posinasetti january 29, 2008 nageswara rao posinasetti 2 elements of machining cutting tool tool holding guiding device work piece machine tool january 29, 2008 nageswara rao posinasetti 3 chip formation cutting tool harder and wear resistant than the workpiece material. Material removal processes categories of machining cutting involve single or multipoint cutting tools and processes turning, boring, drilling, tapping, milling, sawing, and broaching. Using metal cutting processes and techniques page 5.
Is the plane containing the main cutting edge and perpendicular to the basic plane. Metal machining college of engineering bhubaneswar. The cutting forces generated in metal cutting have a. Manufacturing processes i nptel online videos, courses. Draw a neat sketchof the milling operation describing aboveconditions. This book identifies the major problem areas of metal cutting during the production of mechanical components. Paul,department of mechanical engineering, iit kharagpur. Cutting machine introductionthe classification of cutting machinecutting machine can be distinguished from the cutting materials, and it is divided into metalmaterial cutting machine and non metal material cutting machine.
Analytical and experimental determination of cutting forces. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 3 of. Introduction of machining or metal cutting lecture 17. Buy fundamentals of metal cutting and machine tools book online at best prices in india on. New central book agency, 1984 metalcutting tools 657 pages. View notes theoryofmetalcutting120730021018phpapp01 from mechanical 001 at nit trichy. Common cutting processes include sawing, shaping or planing, broaching, drilling, grinding, turning and milling. Me6402 manufacturing technology ii sce 9 department of mechanical engineering fine feeds and high speeds continuous chips with a built up edge still look like a long ribbon, but the surface is no longer smooth and shining. Manufacturing engineering and technology, 3rd edition, by s. Nptel metal cutting and tool design free ebook download as pdf file. Clarendon press is closest in spirit to the mechanical engineering focus of the present work, but there have been many developments since that was first published. Nonferrous extractive metallurgy nptel online videos. Longer term applications metal matrix composites with high specific stiffness and strength could be used in applications in which saving weight is an important factor. Nptel mechanical engineering manufacturing processes ii.
Mechanical engineering manufacturing processes ii nptel. It is operated by a pneumatic hand lever of two ways control valve. Chandramouli associate deanresearch sastra university, thanjavur6 401. Spur and helical gear cuttingt at iit kharagpur and nptel, mhrd julyaug 2017 1 terms nontraditional manufacturing processesp at department of mechanical engineering, iit.
So but mostly we rely on the cutting speed as well as the depth of cut for governing the metal removal rate. This thesis covers a study on modelling and simulation of orthogonal metal cutting by finite element method. Introduction to metal cutting engineering tutorials. Pdf modelling of metal cutting by finite element method. In particular, many topics reflect recent developments, e. Downloadtheory of metal cutting by bhattacharya pdf. Buy fundamentals of metal cutting and machine tools book. Included in this category are robots, highspeed machinery, and highspeed rotating shafts for ships or land vehicles. New central book agency, 1984 metal cutting tools 657 pages. Lower knife item 1 and upper knife item 2 have to be tempered in order to harden them and besides that, these two items have to.
Thoroughly updated with new questions and exercises at the end of each chapter, the book relates observed performance in metal cutting to fundamental physics, materials behavior, and chemistry. Two 50 minute lectures and one 2 hour lab per week. If depth of cut of 2 mm is used then find out cutting speed and volumetric material removal rate mrr. Then you can start reading kindle books on your smartphone, tablet, or computer no kindle device required. Today we will be discussing more about the geometry of single point turning. 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. Lower knife item 1 and upper knife item 2 have to be tempered in order to harden them and besides that, these two items have to be made out of the quality steel with high hardness.
Tech project from iit kharagpur 2014 teaching experience. Hydraulic machines are also available for sheet metal cutting. The molten metal is transferred to the pouring area where the moulds are filled. Metal cutting knowledge technical guide from sandvik coromant. Cutting process variation market research conceptual design. It is the plane perpendicular to the projection of the main cutting edge and both planes mentioned above. Mechanics of machining metal cutting control of cutting. Sheet metal cutter page 1 of 17 sheet metal cutter maximal thickness of the steel sheets that you can cut with this tool is 2mm. Modern developments such as numerical control, computeraided manufacture and nonconventional processes have also been treated. Welcome viewers to the last lecture of our course metal cutting and machine tools.
Metal cutting cutting processes work by causing fracture of the material that is processed. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 1 of 9 sheet metal operations cutting and related processes r. Cutting and forming thin sheets of metal usually performed as cold working sheet metal 0. For the love of physics walter lewin may 16, 2011 duration. Melting and pouring the preparation of molten metal for casting is referred to simply as melting. Tool geometry, chip formation, cutting force calculations and measurement, tool wear and other aspects will be given due attention. Singlepoint tools one cutting edge turning uses single point tools point is usually rounded to form a nose radius 2. Download as ppt, pdf, txt or read online from scribd. Cleaning cleaning involves removal of sand, scale, and excess metal from the casting. Metal cutting theory and practice, third edition by david a. So, welcome to the third lecture of the course metal cutting and machine.
Basic working principle, configuration, specification and classification of machine tools. For this purpose, orthogonal cutting simulations of aisi 1045 steel are performed and. 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. Metal cutting is the process of producing a job by removing a layer of unwanted material from a given workpiece. Do you need help with calculating starting values, figure out what causes and solves poor tool life or do you need tips on how to optimize your machining processes. When you need an experts advice for metal cutting, this is the place to go. Usually, the portion that is fractured away is in small sized pieces, called chips. Welcome viewers to the nineteenth lecture of the course metal cutting and machine. Butterworthheinemann is another major work, but written more. Enter your mobile number or email address below and well send you a link to download the free kindle app. Force modeling in metal cutting is important for tool life estimation, chatter prediction, and tool condition monitoring purposes.
Well start this lesson with difference in production and manufacturing,covering dependent and independent variables well go through oblique and orthogonal metal cutting and see various rake angels. Summary the orthogonal metal cutting process for a controlled contact tool is simulated using a limit analysis theorem. Metal cutting notes free pdf download faadooengineers. Details you may be offline or with limited connectivity. View notes theoryof metal cutting 120730021018phpapp01 from mechanical 001 at nit trichy.
Lecture series on manufacturing processes ii by prof. Nptel provides elearning through online web and video courses various streams. Nptel metal cutting and tool design machining drill scribd. This book updates our knowledge on the metal cutting processes in relation to theory and industrial practice. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. We are using a pneumatic system for sheet metal cutting in a easy way. Run the saw evenly, using long strokes, with all the teeth cutting to prevent wear on a small portion of the blade, thus shortening the blades life. Yang department of mechanical engineering and applied mechanics, the university of michigan, ann arbor, michigan 48109, u. It is called orthogonal cutting forces involved are perpendicular to each other.
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