1
3.6kviews
A symmetrical cup work-piece is shown in the figure. It is to be made from cold rolled steel, 1.2mm thick.

Make necessary calculations for designing the drawing die for this component. Determine the size of blank, percentage reduction, number of the draws required, radius of pitch and die, Drawing pressure if $σ_yt = 430N/mm^2$

1 Answer
0
278views

Given data:

d = 50 mm

r = 1.6 mm

t = 1.2 mm

h = 50 mm

1.Size of the blank

The ratio of d/r = 50/1.6 = 31.25

The ratio is more than 20,

$D = \sqrt{d2+4dh} = + \sqrt{50X50±4X50X50}$

D = 111.8 mm

Blank diameter is theoretical …

Create a free account to keep reading this post.

and 2 others joined a min ago.

Please log in to add an answer.