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The speed of rotation is almost double in semi centrifugal casting as compared to the true centrifugal casting.

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in Casting-Forming-Welding I by (687k points)
The speed of rotation is almost double in semi centrifugal casting as compared to the true centrifugal casting.

(a) True

(b) False

This question was addressed to me during an online exam.

My query is from Centrifugal Casting topic in portion Special Casting Techniques of Casting-Forming-Welding I

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Right option is (b) False

Best explanation: In semi-centrifugal casting method, complicated but axi-symmetric shapes of casting can be possible to make and this is accomplished by pouring of molten metal into the mould, which is rotated about a vertical axis. And the rotating speeds used in this process are not as high as in the case of true centrifugal casting.

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