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 thickness increases the clearance between punch and die should.
The press brake contains an upper tool called the punch and lower tool called the die between which the sheet metal is placed.
Generally typical values span from 3 to 8 of sheet thickness.
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.
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.
As sheet metal stock hardness increases the clearance between punch and die should.
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.
Next make sure you have the correct die clearance for the material type and thickness you re punching see figure 2.
The bend angle is determined by the depth that the punch forces the sheet into the die.
This provided an acceptable burr height and slug control.
The percentage of the die clearance to the material thickness.
This depth is precisely controlled to achieve the required bend.
20 25 long service life of dies.
B be increased a round sheet metal slug produced in a hole punching operation will have the same diameter as.
Determine the punch and die clearance by experience.
The greater the sheet metal thickness the higher the clearance value should be.
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.
Increased 16 7 a circular sheet metal slug produced in a hole punching operation will have the same diameter as the a die opening or b punch.
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.
If you have too much clearance the material will stretch before the material fractures to produce the slug.
A large factor is the type of work material and its temper.
A be decreased b be increased or c be unaffected.
This adds stress to the sheet and increases distortion.
30 heavy duty die clearance.
30 table 1 recommended die clearance table.
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.
