Mechanical Engineering - Workshop Technology - Discussion

Discussion Forum : Workshop Technology - Section 2 (Q.No. 5)
5.
For obtaining a cup of diameter 25 mm and height 15 mm by drawing, the size of the round blank should be approximately
42 mm
44 mm
46 mm
48 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
15 comments Page 2 of 2.

Rajasekhar said:   7 years ago
Please explain it with the correct formula.

Ubong sam said:   7 years ago
Here, how you got the square root? Please explain.

Md Shahood Alam said:   6 years ago
We know the formula of blank dia is,
D = π(d^2+4dh)

Where,
Blank dia (D)=? , Cup dia (d)=25mm, height (h)=15mm.
So,
D = π{(25*25)+(4*25*15)}.
D = π(625+1500),
D = 46.09,
D = 46.
(13)

Imthiyaz said:   6 years ago
How to solve it, can anyone explain?

Gujjar said:   6 years ago
What is a drawing?
(1)


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