27 C3(a) Grinding wheel manufacturer has written thefollowing information"W A 46 B 5 E 17" on thegrinding wheel. Explain(b) Sketch and explain the centerless grinding.(c) Neatly sketch and define reaming andcountersinking operation 1

(A) Grinding wheel information: W A 46 B 5 E 17 W: it shows the manufacturer symbol A: aluminum…

C3 (a) Grinding wheel manufacturer has written the following information"W A 46 B 5 E 17" on the grinding wheel. Explain (S (b) Sketch and explain the centerless grinding. (c) Neatly sketch and define reaming and countersinking operation 1

C3 (a) Grinding wheel manufacturer has written the following information"W A 46 B 5 E 17" on the grinding wheel. Explain (S (b) Sketch and explain the centerless grinding. (c) Neatly sketch and define reaming and countersinking operation 1

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter7: Grinding

Section7.2: Grinding Wheels For Precision Grinding

Problem 1RQ: What wheel shapes are commonly used for surface and cylindrical grinding?

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In a surface grinding operation performed on a 6150 steel workpart (annealed, approximately 200 BHN), the designation on the grinding wheel is C-24-D-5-V. Wheel diameter =178 mm and its width= 25 mm. Rotational speed = 3000 rev/min. Infeed = 0.05 mm per pass, crossfeed = 12.5 mm, and workpiece speed = 6 m/min. This operation has been a source of trouble right from the beginning. The surface finish is not as good as the 0.4 µm specified on the part print, and there are signs of metallurgical damage on the surface. In addition, the wheel seems to become clogged almost as soon as the operation begins. In short, nearly everything that can go wrong with the job has gone wrong. (a) Determine the rate of metal removal when the wheel is engaged in the work. (b) If the number of active grits per cm? = 30, determine the average chip length and the number of chips formed per time. (c) What changes would you recommend in the grinding wheel to help solve the problems encountered? Explain why you…
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In grinding certain tools the linear velocity of the grinding surface should not exceed 6000fts/s. Find the maximum number of revolutions per second (a) 12 in (diameter) (b) 8-in wheel.
Subject: Manufacturing Processes Please do all parts
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Find metal removal rate is sur face grinding a(300mm) long and (60mm) width of rectangulare steel work Piece whose speed is (15 m/min) defth of (cut and width of grinding Pathz lomm? = 0.05mm) of O