Question

In: Mechanical Engineering

i) A series of cold rolling operations are to be used to reduce the thickness of...

i) A series of cold rolling operations are to be used to reduce the thickness of a metal plate from 50 mm to 20 mm in a reversing two-high mill. Roll diameter is 600 mm, and coefficient of friction between rolls and work is 0.15. The specification is that the draft is to be equal on each pass. Determine:

(a) Minimum number of passes required

(b) Draft for each pass

ii) Suppose that the percent reduction rather than the draft were specified to be equal for each pass.

(a) Determine the minimum number of passes required

(b) Determine the draft and exiting stock thickness for each pass

Solutions

Expert Solution


Related Solutions

______ is used to finance "rolling stock"
______ is used to finance "rolling stock"
1. What thickness of concrete and of lead are needed to reduce the intensity of narrow...
1. What thickness of concrete and of lead are needed to reduce the intensity of narrow 500 keV photon beam to one-fourth its value? Compare the thickness in cm and in g/cm2. Repeat for 1.5 MeV photons. 2. A 3 MeV point source of grams is located at the center of a 6.0 cm diameter iron sphere. The lead sphere is surrounded by a spherical shell of lead 3 cm thick (The resulting sphere is a radius 6.0 cm). a)...
What effect does cold rolling have on the orientation of (111) and (200) planes relative to...
What effect does cold rolling have on the orientation of (111) and (200) planes relative to the surface of the sample?
Describe how ratio analysis can be used to improve operations and reduce debt ? Describe how...
Describe how ratio analysis can be used to improve operations and reduce debt ? Describe how identifying trends and patterns in financial statements over reporting periods can yield insights into the client’s business ?
The five key goals of the operations manager are to reduce costs, reduce variability and improve...
The five key goals of the operations manager are to reduce costs, reduce variability and improve logistics flows, improve productivity, improve quality of customer service, and continuously improve business processes. Describe from your work and/or personal life how you have observed someone manage an operation that achieved all or many of the goals of an operations manager. Give some examples of how some lacking areas could be improved. Be sure to support your conclusions with facts from the readings and/or...
The five key goals of the operations manager are to reduce costs, reduce variability and improve...
The five key goals of the operations manager are to reduce costs, reduce variability and improve logistics flows, improve productivity, improve quality of customer service, and continuously improve business processes. Describe from your work as a HOSPITAL OPERATION MANAGER how you have observed someone manage an operation that achieved all or many of the goals of an operations manager. Give some examples of how some lacking areas could be improved. Be sure to support your conclusions with facts from the...
I had to do a lab to calculate the thickness of aluminum foil. I worked the...
I had to do a lab to calculate the thickness of aluminum foil. I worked the problem out ( see below), but I feel I am doing something wrong. Can you please help me? Data table: Foil Piece Length (cm) Width (cm) Area (cm2) Mass (g) Density (g/cm3) Volume (cm3) Thickness (cm) Foil #1 10 10 100 1 2.70 0.370 0.0037 Foil #2 10 10 100 1 2.70 0.370 0.0037 Foil #3 10 10 100 1 2.70 0.370 0.0037 Area...
Ultrasound was used to gather the accompanying corrosion data on the thickness of the floor plate...
Ultrasound was used to gather the accompanying corrosion data on the thickness of the floor plate of an above ground tank used to store crude oil; each observation is the largest pit depth in the plate, expressed in milli-in: 40, 52, 55, 60, 70, 75, 83, 85, 90, 90. The five-number summary is:
Heat treating is often used to carburize metal parts, such as gears. The thickness of the...
Heat treating is often used to carburize metal parts, such as gears. The thickness of the carburized layer is considered a crucial feature of the gear and contributes to the overall reliability of the part. Because of the critical nature of this feature, two different lab tests are performed on each furnace load. One test is run on a sample pin that accompanies each load. The other test is a destructive test, where an actual part is cross-sectioned. This test...
Heat treating is often used to carburize metal parts, such as gears. The thickness of the...
Heat treating is often used to carburize metal parts, such as gears. The thickness of the carburized layer is considered a crucial feature of the gear and contributes to the overall reliability of the part. Because of the critical nature of this feature, two different lab tests are performed on each furnace load. One test is run on a sample pin that accompanies each load. The other test is a destructive test, where an actual part is cross-sectioned. This test...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT