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14th March 2013, 03:23 PM
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Anna University Notes for Mech
Can you provide me Mechanical Engineering notes of 4th Sem Anna University??
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#2
19th March 2013, 11:21 AM
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Re: Anna University Notes for Mech
As you are looking for the Mechanical Engineering notes of 4th Sem Anna University so here I am providing you same. ME 2252 Manufacturing Technology – II notes : INTRODUCTION: Metal cutting is the process of producing work piece by removing unwanted material from a block of metal in the form of chips. The major drawback of the process is loss of material in the form of chips. The process is basically adopted because of the following reasons. a) To get higher surface finish. b) To achieve close tolerance. c) To get complex geometric shapes. d) Some times it may be economical to produce a component by machining process. MATERIAL REMOVAL PROCESSES Machining of material is basically adopted to get higher surface finish, close tolerance and complex geometric shapes which are other wise difficult to obtain. •Metal removal is probably the most expensive one because a substantial amount of material is removed from the raw material in the form of chips to achieve the required shape. •The choice of material removal is an option for manufacturing is concerned when no other manufacturing process suits the purpose. •Invariably all components undergo a material removal operation at some points. •A machine tool is one which while holding the cutting tool is able to remove the metal from a work piece to generate the required part of the given size, configuration and finish. Metal Cutting • Process where a stronger metal is used to cut a softer metal. • One of the most popular and commonly used manufacturing processes. • Lathe has been used since mid-seventeenth century. • Metal cutting also includes methods of machining such as • Parts after heat treatment are usually distorted and hence need machining • Accurate dimension, sharp corners • Desired texture - such as shiny finish, mirrored surface etc. • With modern machine it can be very economical • Disadvantages • Higher cost of labor and tools • Scrap metal results • Longer cycle time Rest of the notes is attached in below file which is free of cost for you. Anna University Mechanical Engineering 4th Sem Note1 Anna University Mechanical Engineering 4th Sem Note2 |