MACHINABILITY NPTEL PDF

Page 1. Module. 3. Machinability. Version 2 ME IIT, Kharagpur. Page 2. Lesson. Failure of cutting tools and tool life. Version 2 ME IIT, Kharagpur. Page 3. Recommended materials for machinability. Parts made from both ferrous and non -ferrous material can be machined. However, materials like plastics (with or. Page 1. Version 2 ME, IIT Kharagpur. Module. 3. Machinability. Page 2. Version 2 ME, IIT Kharagpur. Lesson. Cutting Tool Materials of common use. Page 3.

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A diamond-tipped lathe tool is used in the final stages of the manufacturing process to achieve sub- nanometer level surface finishes and sub- micrometer form accuracies.

Manufacturing Processes – II NPTEL

For best possible quality natural diamonds are used as single-point cutting elements during the final stages of the machining process. The form accuracy is measured as a mean deviation from the ideal target form.

Ferrous materials are not readily machinable because the carbon in the diamond tool chemically reacts with the substrate, leading to tool damage and dulling after short cut lengths. Temperature control is crucial, because the surface must be accurate on distance scales shorter than the wavelength of light. This course gives the basic understanding of the various machining processes and its physics. The main spindle may be cooled with a liquid coolant to prevent temperature deviations.

January 18 Monday — January 18 Monday.

Optics Glass production Machining. This site also uses cookies to deliver our services. Here are the instructions how to enable JavaScript in your web browser. Unsourced material may be challenged and removed.

Articles needing additional references from December All articles needing additional references All articles with unsourced statements Articles with unsourced statements from January Articles with unsourced statements from May Finishing processes honing, laping burnishing and deburring.

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Overview Machinabilitg Related Courses Reviews. Conversion of tool angles from one system to another.

You can manage your calendar by clicking on the button below. The SPDT manufacturing process produces a relatively high percentage of defective parts, which must be discarded. Glossary of glass art terms Glass recycling. Diamond milling can be used to generate aspheric lens machinabikity by annulus cutting methods with a spherical diamond tool. Be the first to write a review about this course. As with other CNC machines, the motion of kachinability tool is controlled by a list of coordinates generated by a computer.

Or if you don’t have an account you can sign up as a Provider or as a Learner. Cutting Tool Materials of common use. Design and Application of typical jigs and fixtures. This course also gives emphasis on cutting fluid emissions and its effect on operators, environment and water pollution.

Diamond turned surfaces have a high machinabiltiy brightness and require no additional polishing or buffing, unlike other conventionally machined surfaces. Sign up for free.

Principles of assembly engineering, theory of dimensional chains, fully interchangeable and selective assembly. Never miss a course! The cutting tool is moved with sub-micron precision by a combination of electric motors and piezoelectric actuators.

Manufacturing Engineering Mechanical Engineering. To support our site, Class Central may be compensated by some course providers.

As a result, the manufacturing costs are high compared to conventional polishing methods. Get personalized course recommendations, track subjects and courses with reminders, and more.

Don’t have an account? Mechanics of Machining, tool geometry and materials, chip formation, tool temperature, tool wear, tool life, surface finish, machinability. Basic working principle, configuration, specification and classification of machine tools.

NPTEL :: Mechanical Engineering – Manufacturing Processes II

Chip-tool tribology, tool-workpiece tribology, Sticking and sliding zone, types of lubrication, Surface roughness, Materials removal rate, Machinability. Go to your Messages. Diamond fly cutting can be used to generate diffraction gratings and other linear patterns with appropriately contoured diamond shapes.

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Cutting fluids for machining advanced materials, maachinability speed machining, hard machining. Kinematic systems and operations of lathes.

Diamond turning is most often used for making infrared optics, because at longer wavelengths optical performance is less sensitive to surface finish quality, and because many of the materials used are difficult to polish with traditional methods. Introduction to Manufacturing and Machining. Initial stages of machining are carried out using a series of CNC lathes of increasing accuracy.

The granite base is placed on air suspension on a solid foundation, keeping its working surface strictly horizontal. Several techniques have been investigated to prevent this reaction, but few have been successful for long diamond machining processes at mass production macninability. Send a new code. Mechanism of chip formation Lesson. The mentioned syllabus is systematic order to understand gradually, importance of machining, machining region mechanism, tool signatures, tool life, multipoint machining processes, cutting fluid, cutting fluid emissions and its effect on human kind.

Back to Online Courses. Classification of grinding machines and their uses. Tags engineering machines fluids. Generally, diamond turning is restricted to machinabilty materials.

Even with the relatively high volume of optical components manufactured using the SPDT process, this process cannot be classified as mass production, especially when compared macinability production of polished optics.