Die cutting operation: Die cutting which is used to various purpose in our uses.
Six die cutting operation with sketch:
a)blanked part perced holes
b)Lancing operation
c) Cut off operation
d)Parting operation
e)Notching operation
f) Shaving operation
Problem: A 2- inch square hole is to be pierced in 1020 steel, which is 0.062 in. thick. If shear strength of stock material is 25 ton/in2, what is the cutting and stripping force required?
Solution: Given data, t=0.062 inch,
S=25 ton/in2
P=2+2+2+2=8”
So, cutting force, F= spt
=25*8*0.062
=12.4 tons
(Ans)
Stripping force, fs
=850 pt
=850*8*0.062
=421.61 lb
(Ans)
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