Press hello, i welcome you all in this presentation related with the subject, fundamentals of the manufacturing process and we are talking about the metal working processes and we know that the metal working processes can be placed in the two categories one is where. How can i download notes directly in pdf format from nptel. Unit 6 design of sheet metal, blanking and piercing tools structure 6. Lecture 24 hydraulic circuit design and analysis learning objectives upon completion of this chapter, the student should be able to. Both power generation and refrigeration are usually accomplished by a system that. A shop press is commonly used to press interference fit parts together, such as gears onto shafts or bearings into housings. Nptel provides elearning through online web and video courses various streams. Hello guys, we had discussed about press working operationssheet metal operations in the previous post.
Nptel lectures power system protection and switchgear. Some courses might have presentations or quiz papers uploaded, but rest of them just have transcripts which is pretty useless to refer as notes. Turbocharger and supercharger to increase the output of any engine more fuel can be burned and make bigger explosion in every cycle. But bigger engine, which weigh more and cost more to build and maintain are not always better ii. It is one of the oldest metalworking arts with its origin about some thousands of years back.
Quality of the performance of a process largely influenced by the quality of jigs and fixtures used for. Guide northwest native symbols pdf to download nptel. Electrical, electronics and communications engineering. Working principle derived from automatic identification and data capture aidc technology.
Nptel has changed the links of pdf lecture notes since august 2019. So jigs and fixtures are used and serve as one of the most important facility of mass production system. Nptel, online courses and certification, learn for free. The press machines may be of 1 ton, 2ton, 3ton etc. Metal forming processes indian institute of technology guwahati. Milling milling a machine operation in which a work part is fed past a rotating cylindrical tool with multiple edges. Apr 06, 2016 contents introduction press working terminology press selection classification of press types of press references 2 3.
The operations performed on the sheets to get the required shape is called sheet metal operations. Unit 6 design of sheet metal, design of sheet metal. This book is suitable to the engineering students of b. You can also get course completion certification for some of the courses. As of today we have 78,260,526 ebooks for you to download for free. Pilot plant equipment center for crops utilization research. Pdf press tools are commonly used in hydraulic, pneumatic, and mechanical presses to produce components at high volumes. A press brake is a special type of machine press that bends sheet metal into shape. In this lab, you will first perform experiments with a smallscale batch filter and use your experimental data to predict. Introduction press it is a machine by which we can do cutting and non cutting process by applying force without removing chip on metallic or non metallic sheet. It is also referred to a complete tool consists of a pair of mating members for producing work in a press. Some examples of shapes obtained by forging process. Metal forming processes indian institute of technology.
Unit 6 design of sheet metal, design of sheet metal, blanking. These are special work holding and tool guiding device. Nptel, an elearning initiative by the 7 indian institutes of technology and the indian institute of science with the support of the mhrd, govt. Oct 09, 2019 nptel has changed the links of pdf lecture notes since august 2019. I have written only those lectures which i found important and which are in the gate syllabus.
Nptel provides courseware in the form of video lectures and web courses. Other machining operations shaping and planing a singlepoint tool moves linearly relative to the work part shaping a tool moves. In this operation, forming of a flat metal sheet into a hollow or concave shape like a cup, is performed by stretching the metal in some regions. These notes has been made by me after watching nptel lectures given by various professor from different iits and iisc. Find materials for this course in the pages linked along the left. First go through it so that you can understand the current topic must. Design of sheet metal, blanking and piercing tools unit 6 design of sheet metal, blanking and piercing tools structure 6. Design and manufacturing of progressive press tool 21 faster due to the introduction of more efficient machines. Hello guys, we had discussed press working operations in the previous post. A good example of the type of work a press brake can do is the backplate of a computer case. Lecture notes synthesis of polymers chemical engineering. Punching and blanking process sheet metal forming slideshare. Filtration is a process of separation of solid particles from a liquid in which they are suspended by using a medium filter through which only the liquid can pass. This manual does not for designing centrifugal compressor and those parts.
Another way to add power is to make a normal sized engine more efficient. Sheet metalworking terminology punchanddie tooling to perform cutting, bending, and drawing stamping press machine tool that performs most sheet metal. Majority of video courses on nptel do not offer lecture notes for download. Press working operations or sheet metal operations. Contents of power system protection lecture, iit bombay. This mechanism is predominant in high stacking fault energy metals, flow. Which is basically a large heat exchanger, by rejecting heat to a cooling. Unit 7 air compressors working of a single stage reciprocating air compressor, calculation of work input, volumetric efficiency, isothermal efficiency, advantages of multi stage compression, two stage compressor with. The conceptual basis of the wsm assumes that the structural material behaves in a linear elastic manner and that appropriate safety can be ensured by suitably limiting the stresses in the. Tool making machines can grind, mill and polish up the tools within a very short time. Forging is a metal working process in which useful shape is obtained in solid state by hammering or pressing metal. Press tools are commonly used in hydraulic, pneumatic, and mechanical presses to produce.
Crane hook, connecting rod of ic engine, spanner, gear blanks etc. Sep 09, 2018 majority of video courses on nptel do not offer lecture notes for download. So, usually the press tool has 3 elements at the top and 3. Contents introduction press working terminology press selection classification of press types of press references 2 3. No annoying ads, no download limits, enjoy it and dont forget to bookmark and share the love. Jun 30, 2010 lecture series on design of reinforced concrete structures by prof. It is a type of machine press used to cut the material.
Manual purpose to be used for selection, application into the system, power and cooling water estimation. Hydraulic circuit design and analysis a hydraulic circuit is a group of components such as pumps, actuators, and control valves so arranged that they will perform a useful task. Introduction and classification of forging processes. Ech 4224l unit operations lab i filtration 15 accounting for resistance of filtration medium the derivation above assumes that the only source of resistance to the fluid flow is the filtration cake and neglects resistance due to the filter medium. During hot working, material softening happens due to two mechanisms dynamic recovery or dynamic recrystallization. Press working operationssheet metal operations pdf. Therefore, it will be important to have a design that.
The line of bend is curved instead of straight and the metal is subjected to plastic flow or deformation. The jigs and fixtures are the economical ways to produce a component in mass. This is a reasonable assumption if the filter medium is a canvas cloth. Types of press working or sheet metal operations pdf. In dynamic recovery, dislocation crossslipping, climbing occurs. Nptel mechanical engineering fluid mechanics video introduction and.
Sheet metal forming massachusetts institute of technology. Forming tools apply more complex forms to work pieces. Identify the graphic symbols for various types of hydraulic components. Learn for free, pay a small fee for exam and get a certificate. Hydraulics and hydraulic machinery notes pdf hhm notes pdf. When analyzing or designing a hydraulic circuit, the following three important considerations must be taken into account. In this, the sheet material is strained by punch to give a bend shape angle shape usually in a straight axis. Press working 2 press working operations 1 press working terminology 1 principle elements of metal machining 1. The maximum force required to create a complete rupture is, fmax. Most of these courses consists 40 videos and 1 hour duration each. Stresses beyond yield strength of the workpiece material is required.
Working stress method working stress method is the traditional method of design not only for reinforced concrete but also for structural steel and timber design. Unit 7 air compressors working of a single stage reciprocating air compressor, calculation of work input, volumetric efficiency, isothermal efficiency, advantages of multi stage compression, two stage compressor with intercooling, perfect inter cooling, optimum intercooler pressure. I hope you enjoy working with this book, and that it helps you learn to program and think like a computer scientist, at least a little bit. Aidc performs object identification, object data collection and mapping of the collected data to computer systems with little or no human intervention. Press working terminology is described in a simple way to understand. How to download notes directly in pdf format from nptel. One can download or view all the lecture notes in pdf through the following website browse. Drill press upright drill bench drill radial drill gang drill 26 drills together nc drill vice, jig and fixture. Here you can download the free lecture notes of hydraulics and hydraulic machinery notes pdf hhm notes pdf materials with multiple file linksthe hydraulics and hydraulic machinery pdf notes hhm pdf notes. Lecture series on design of reinforced concrete structures by prof. Dhang, department of civil engineering, iit kharagpur. Transformer dc machines induction machine power system power electronics analog electronics prof. Efficiency of operation it is very important for the fluid power hydraulics and pneumatics designer to have a working knowledge of components and how they operate in a circuit.
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