Question regarding Rolling process

In summary, the state of stress in a rolling process can involve pure compression, pure shear, or a combination of both compression and shear. Factors such as gravity, friction, and velocity can influence the type of stress present. It is important to consider all these factors when determining the correct option for a specific system.
  • #1
pranoy407
3
0
In a rolling process, the state of stress of the material undergoing deformation is
a) pure compression
b) pure shear
c) compression and shear
d) tension and shear

Which one is the correct option ? Please explain why !
 
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  • #2
Is this homework?
What do you think about the problem?
 
  • #3
No.. Its from my entrance exam.. According to me it should be compression and shear.. so ?
 
  • #4
In general, I would expect all 3, depending on the system.
Compression: Sure, we have gravity
Shear: With friction
Tension: At sufficient velocity, at the outer parts (to keep them attached to the rolling object).
 
  • #5
Thanks ! Kinda got an answer ;)
 

1. What is the rolling process?

The rolling process is a method used to shape metal into thin sheets or strips by passing it through a series of rollers. It is a type of metal forming process that is commonly used in the manufacturing industry.

2. What are the different types of rolling processes?

There are several types of rolling processes, including hot rolling, cold rolling, and warm rolling. Hot rolling is used for shaping metal at high temperatures, while cold rolling is used at room temperature. Warm rolling is a combination of both hot and cold rolling, and is used for materials that require less force to shape.

3. What are the advantages of the rolling process?

The rolling process has several advantages, including the ability to produce large quantities of uniform, high-quality metal sheets or strips. It is also a cost-effective method of shaping metal, as it requires less energy and labor compared to other metal forming processes.

4. What are the main applications of the rolling process?

The rolling process is commonly used in the manufacturing of products such as cars, airplanes, household appliances, and construction materials. It is also used in the production of metal rods, tubes, and pipes.

5. What factors affect the rolling process?

The rolling process can be affected by various factors, including the type of metal being rolled, the temperature at which the rolling is done, the speed of the rollers, and the amount of pressure applied. Other factors such as lubrication, roller surface finish, and material thickness can also impact the rolling process.

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