The trimming press is used for trimming and punching.
The required tonnage of the trimming press can be calculated as follows:
P-cut=1.6δbL (2.5h+B)
The required press tonnage for punching:
P-hole=1.6δbL(2.5H+B)
P-cut—trimming force required for trimming (N)
P-hole—punching force required for punching (N)
δb—material strength limit (MPa)
L—circumference of trimming and punching of forgings (mm)
H—the skin-connected height of forgings at punching (mm)
B—positive tolerance of forging height direction (mm)
h—height of flash groove bridge (MM)
The required press tonnage should be greater than the calculated tonnage.
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