Page 36 - Module DMV20173
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3.0 SHEET METAL PROCESSES
Figure 3.7 (a) Conventional and fine blanking. (b) Setup of fine blanking.
c. Slitting
1. In slitting, the blades follow either a straight line, a circular path, or a curved path.
2. Fig. 4.8 shows the slitting with rotary knives.
3. This process is similar to opening cans.
Figure 4.8 The slitting with rotary knives.
d. Steel rules
1. Soft metals (as well as paper, leather, and rubber) can be blanked with a steel-rule
die.
2. The die is pressed against the sheet which rests on the flat surface, and it shears the
sheet along the shape of the steel rule.
BPLK 68 DMV 20173
