1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novay_Z [31]
3 years ago
10

In a reversing 2-high mill, a series of cold rolling process is used to reduce the thickness of a plate from 45mm down to 20mm.

Roll diameter is 600mm and coefficient of friction between rolls and strip 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?
Engineering
1 answer:
podryga [215]3 years ago
5 0

Answer:

Explanation:

Given

Initial Thickness=45 mm

Final thickness=20 mm

Roll diameter=600 mm

Radius(R)=300 mm

coefficient of friction between rolls and strip (\nu)=0.15

maximum draft(d_{max})=\nu ^2R

=0.15^2\times 300=6.75 mm

Minimum no of passes=\frac{45-20}{6.75}=3.70\approx 4

(b)draft per each pass

d=\frac{Initial\ Thickness-Final\ Thickness}{min.\ no.\ of\ passes}

d=\frac{45-20}{4}=6.25 mm

You might be interested in
Joe is a chemical engineer whose plant discharges heavy metals into the local river. By the test authorized by the city governme
chubhunter [2.5K]

Answer:

B probably

Explanation:

Because the prompt doesn't specify what sort of violation it could be anything maybe when they release the metals during the day and so on.

5 0
2 years ago
What is electricity defined as
antoniya [11.8K]

Answer:

Exact answer: a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.

4 0
3 years ago
The arrival rate at a parking lot is 6 veh.min. Vehicles start arriving at 6:00PM and when the queue reaches 36 vehicles, servic
seraphim [82]

Answer:

Departure rate = 7.65 vehicle/min

Explanation:

See the attached file for the calculation.

5 0
3 years ago
You notice a new associate from another area is not wearing his required safety glasses. This is the second time you've noticed
Zina [86]

If I notice a new associate from another area not wearing his safety glasses then I would warn him to wear it. In case he doesn't wear then I will report the Manager or HR regarding the same. The best that could be done is to not provide him the benefits of health insurance by the company. The least likely thing that would be done is to ignore the fact that he is not wearing a safety glasses.

8 0
3 years ago
As an engineer who has just finished taking engineering materials course, your first task is to investigate the causes of an aut
SIZIF [17.4K]

Answer is given below

Explanation:

  • Evidence shows that the axle was not broken before the accident, while the clumsy axle meant that the wheel was still attached when the load was applied.
  • This indicates that the Chevron prototype wheel suffered a severe impact shock, which caused the failure of the transmission to the axle. Preliminary evidence suggests that the driver lost control and crashed.
  • Further examination of the surface, microstructure and structure and characteristics of the fracture can be modified if the axle is properly prepared
3 0
3 years ago
Other questions:
  • An AC sine wave has an effective value of 100V what’s the peak value of the waveform
    6·1 answer
  • The temperature of a system rises by 10 °C during a heating process. Express the rise in temperature of K, R, and °F.
    11·1 answer
  • An irreversible heat pump and a Carnot heat pump operate between the same two thermal reservoirs. Which heat pump has higher COP
    5·1 answer
  • Water at atmospheric pressure boils on the surface of a large horizontal copper tube. The heat flux is 90% of the critical value
    11·1 answer
  • Steam enters a two-stage adiabatic turbine at 8 MPa and 5008C. It expands in the first stage to a state of 2 MPa and 3508C. Stea
    5·1 answer
  • Need help with both giving out brainlest for the people to help me
    13·1 answer
  • Air is compressed by a 30-kW compressor from P1 to P2. The air temperature is maintained constant at 25°C during this process as
    11·1 answer
  • A benefit to using the medium the author used in "Great Rock and Roll
    12·2 answers
  • Reverse masking forms a soft edge on the panel.
    5·1 answer
  • 1)What are the three previous manufacturing revolutions Mr. Scalabre mentions? When did these take place?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!