Admin: Ankit Pandey

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Ankit Pandey ♦♦ 10
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Posts by Ankit Pandey

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Answer: A: Note on - Balancing of grinding wheels
... ![enter image description here][1] fig. Balancing of grinding wheel. - To obtain good surface finish, to prevent vibrations and to avoid undue wear on machine parts, it is necessary that the grinding wheel should have good balance before its use. - Hence, the wheel should be properly tested for ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Note on chemical machining
... ![enter image description here][1] Fig. stages of chemical machining process • Etching metal can be removed from work piece by using controlled chemical • Metal can be removed from entire surface or from selected surface. • If selective surface machining is required, the left unmachined portio ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Types of coolants
... Types of coolants are : **(a) Gaseous type** **(b) Liquid type** 1) water 2) fatty oil 3) straight mineral oil 4) cutting fluids 5) soluble oils **(c) synthetic coolants** **(a) Gaseous type :** - These type of cutting fluids are applied through a nozzle under pressure. - e.g. Argon, hel ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Factor affecting surface finish
... Following are the factors on which surface finishing of machined component depends 1) Cutting speed 2) Depth of cut 3) Feed 4) Material removal rate. **1) Cutting speed :** It is the rate at which cutting edge of tool passes over the surface of workpiece in unit time. unit - m/min If the c ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Differentiate between orthogonal and oblique cutting
... **Orthogonal cutting :** ![enter image description here][1] - Cutting edge of tool is normal to cutting velocity direction. - The direction of chip flow velocity is perpendicular to the edge of tool - Cutting edge is longer than the width of the cut. - orthogonal type of cutting is called 2 - ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Classify various non Traditional machining processes.
... **1) Mechanical :** • Ultrasonic machining (USM) • Water jet machining (WJM) • Abrasive water jet machining (AWJM) **2) Thermal :** • Electrical discharge machining (EDM) • Electron beam machining (EBM) • Laser beam machining (LBM) • Plasma beam machining (PBM) **3) Chemical and electroche ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Explain design principles of turning fixtures?
... 1) The turning fixtures should be perfectly balanced. 2) It should be light in weight to reduce vibrations. 3) The size of turning fixture should be small so that it should not hit the bed. 4) It should be properly designed so that it should not obstruct cutting operation. 5) It should be rigid ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Explain the steps in designing bending dies.
... ![enter image description here][1] **Fig. bending terminology.** - Bending is the process in which a straight length is transformed into a curved length. - During bending, the outer surface of the material is under tension and inner under compression. - Parameters to be considered while designin ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Describe the mechanism of chip formation in detail ?
... ![enter image description here][1] - When the force is applied by using tip of the tool an layer of work piece, the material starts deforming plastically and sliding over the rake force of tool, inducing shear stresses in layer of work piece material. - on further application of force by tool on w ...
written 13 days ago by Ankit Pandey ♦♦ 10
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Answer: A: Explain end milling cutters in details.
... - End milling cutter have cutting teeth on the ends as well as on the circumference of the cutter. - The teeth on circumference may be straight or helical and the helix. - End mill cutters are generally used for light milling operation such as cutting slots, for machining accurate holes, etc. ![e ...
written 13 days ago by Ankit Pandey ♦♦ 10

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