As Sheet Metal Stock Thickness Increases The Clearance Between Punch And Die Should

Min service life of dies.

As sheet metal stock thickness increases the clearance between punch and die should. 20 25 long service life of dies. This provided an acceptable burr height and slug control. The greater the sheet metal thickness the higher the clearance value should be. Determine the punch and die clearance by experience.

The bend angle is determined by the depth that the punch forces the sheet into the die. Generally typical values span from 3 to 8 of sheet thickness. 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. 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. 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. This adds stress to the sheet and increases distortion. 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.

The press brake contains an upper tool called the punch and lower tool called the die between which the sheet metal is placed. 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 be increased a round sheet metal slug produced in a hole punching operation will have the same diameter as. 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.

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. This depth is precisely controlled to achieve the required bend. 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. 30 table 1 recommended die clearance table.

The percentage of the die clearance to the material thickness. 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. As sheet metal stock hardness increases the clearance between punch and die should. In manufacturing industry there is a range of optimum values for specific processes clearances may span from 1 to 30 of sheet thickness.

If you have too much clearance the material will stretch before the material fractures to produce the slug.