A hot rolling operation is being carried out on 250 mm wide and 25mm thick low carbon steel (C=165MPA, m=0.10) plate at 1000°C. The roll diameter is 450mm and it is rotating at 120 rpm. It is proposed that a reduction of 20% be taken in the rolling process. If the strain rate in the rolling processes can be expressed by the following expression: V. h. = 3 In L h, Where V, is the roll surface speed, ho is the intial thickness of the plate, hfis the final thickness of the plate and L is the contact length between the roll and plate in the deformation zone. Compute the flow stress required to deform the carbon steel plate.
A hot rolling operation is being carried out on 250 mm wide and 25mm thick low carbon steel (C=165MPA, m=0.10) plate at 1000°C. The roll diameter is 450mm and it is rotating at 120 rpm. It is proposed that a reduction of 20% be taken in the rolling process. If the strain rate in the rolling processes can be expressed by the following expression: V. h. = 3 In L h, Where V, is the roll surface speed, ho is the intial thickness of the plate, hfis the final thickness of the plate and L is the contact length between the roll and plate in the deformation zone. Compute the flow stress required to deform the carbon steel plate.
Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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![A hot rolling operation is being carried out on 250 mm wide and 25mm thick low carbon steel
(C=165MPA, m=0.10) plate at 1000°C. The roll diameter is 450mm and it is rotating at 120
proposed that a reduction of 20% be taken in the rolling process.
rpm.
It is
If the strain rate in the rolling processes can be expressed by the following expression:
V,
h.
= 3
L
h,
Where V, is the roll surface speed, ho is the intial thickness of the plate, hfis the final thickness of the
plate and L is the contact length between the roll and plate in the deformation zone.
Compute the flow stress required to deform the carbon steel plate.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d24763d-9398-4e2d-9add-81d088109155%2F603a9b82-b1f4-4698-8f48-696d8c948661%2Fjxoidkc_processed.png&w=3840&q=75)
Transcribed Image Text:A hot rolling operation is being carried out on 250 mm wide and 25mm thick low carbon steel
(C=165MPA, m=0.10) plate at 1000°C. The roll diameter is 450mm and it is rotating at 120
proposed that a reduction of 20% be taken in the rolling process.
rpm.
It is
If the strain rate in the rolling processes can be expressed by the following expression:
V,
h.
= 3
L
h,
Where V, is the roll surface speed, ho is the intial thickness of the plate, hfis the final thickness of the
plate and L is the contact length between the roll and plate in the deformation zone.
Compute the flow stress required to deform the carbon steel plate.
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