41. A batch of pins with p(12 ± 0.01) mm in diameter is machined by means of centerless grinding machine. It is found through measuring 100 pins taken from the batch of pins at random that its diameters approach to normal distribution, and the mean value X = 11.99 mm, the root-mean-square deviation o = 0.003. (1) To draw the diameter error distribution curve of pins. (2) To calculate the process capability coefficient C,, of this operation. Cp 1/60 Answers:

41. A batch of pins with p(12 ± 0.01) mm in diameter is machined by means of centerless grinding machine. It is found through measuring 100 pins taken from the batch of pins at random that its diameters approach to normal distribution, and the mean value X = 11.99 mm, the root-mean-square deviation o = 0.003. (1) To draw the diameter error distribution curve of pins. (2) To calculate the process capability coefficient C,, of this operation. Cp 1/60 Answers:

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

41. A batch of pins with p(12 ± 0.01) mm in diameter is machined by means of centerless grinding machine. It is found through
measuring 100 pins taken from the batch of pins at random that its diameters approach to normal distribution, and the mean value
X = 11.99 mm, the root-mean-square deviation o = 0.003.
(1) To draw the diameter error distribution curve of pins.
(2) To calculate the process capability coefficient C, of this operation. Cp-T760
Answers:

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