Punch Die Clearance Sheet Metal

The clearance between punch and dies is represented by the total difference which is one of the critical factors in the punching process.

Punch die clearance sheet metal.

20 25 long service life of dies. Presently sheet metal processing together with punch presses plays an important roll in the industry and will continue to do so in the future. The punch often passes through the work into a die a scrap slug from the hole is deposited into. Dimensions for ordering common shapes.

30 heavy duty die clearance. Let s make holes faster. For example when using ø12 upper die and ø 12 25 lower die the optimal clearance is 0 25mm. By examining your slugs you can tell if punch to die.

Punch tooling systems. 30 table 1 recommended die clearance table. The importance of proper die clearance. The percentage of the die clearance to the material thickness.

The history of sheet metal fabricating machines covers nearly three centuries. Die clearance at 2 5 of sheet thickness 2 0 x 0 025 0 05 each side die bore 20 2 x 0 05 20 10 mm. Each test result was recorded and a mathematical model was created. Min service life of dies.

Slide thin sheets of material into the included die block then punch an inner and outer hole to create a shim or washer. The slug is essentially a mirror image of the hole with the same parts in reverse order. The material is subjected to both compressive and tensile stresses. As the punch touches the sheet metal and travels downwards it pushes the material into the die opening.

Hydraulic hole punches our strongest punch this tool has 35 tons of force to punch through tough materials such as bus bars railings and i beams. Punch and die clearance. Modern sheet metal fabricating machines however made their appearance only twenty to thirty years ago. For more information please read proper die clearance.

Enter information about the stock you are punching in rows a b and c below. Enter information about your punch in row d. Die clearance for blanking press tool. Use it to calculate die clearance required for perforating metals plastics and more.

Determine the punch and die clearance by experience.