The press brake contains an upper tool called the punch and lower tool called the die between which the sheet metal is placed.
As sheet metal stock thickness increases the clearance between punch and die should.
Determine the punch and die clearance by experience.
Generally typical values span from 3 to 8 of sheet thickness.
B be increased a round sheet metal slug produced in a hole punching operation will have the same diameter as.
A long time industry rule of thumb used by die makers for the clearance between the punch and the die button is 5 of the stock thickness per side.
B a circular sheet metal slug produced in a hole punching operation will have the same diameter as a the die opening or b the punch.
The percentage of the die clearance to the material thickness.
In manufacturing industry there is a range of optimum values for specific processes clearances may span from 1 to 30 of sheet thickness.
The sheet is placed between the two and held in place by the backstop.
As sheet metal stock hardness increases in a blanking operation the clearance between punch and die should be increased a circular sheet metal slug produced in a hole punching operation will have the same diameter as the.
This adds stress to the sheet and increases distortion.
As sheet metal stock hardness increases in a blanking operation the clearance between punch and die should be a decreased b increased or c remain the same.
30 table 1 recommended die clearance table.
This depth is precisely controlled to achieve the required bend.
A circular sheet metal slug produced in a hole punching operation will have the same diameter as a the die opening or b the punch.
This provided an acceptable burr height and slug control.
The greater the sheet metal thickness the higher the clearance value should be.
A be decreased b be increased or c be unaffected.
If you have too much clearance the material will stretch before the material fractures to produce the slug.
20 25 long service life of dies.
Min service life of dies.
As sheet metal stock hardness increases in a blanking operation the clearance between punch and die should be a decreased b increased or c remain the same.
16 6 as sheet metal stock hardness increases in a blanking operation the clearance between punch and die should be a decreased b increased or c remain the same.
As sheet metal stock hardness increases the clearance between punch and die should.
Next make sure you have the correct die clearance for the material type and thickness you re punching see figure 2.
A large factor is the type of work material and its temper.
