Sheet Metal Punch And Die Clearance Formula

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.

Sheet metal punch and die clearance formula.

The clearance between punch and dies is represented by the total difference which is one of the critical factors in the punching process. Determine the punch and die clearance by experience. The percentage of the die clearance to the material thickness. Enter information about your punch in row d.

30 heavy duty die clearance. Generally there have two methods by experience and by formula. Min service life of dies. Enter information about the stock you are punching in rows a b and c below.

Use it to calculate die clearance required for perforating metals plastics and more. Here s how to estimate die clearance required for punching steel and aluminium. For example when using ø12 upper die and ø 12 25 lower die the optimal clearance is 0 25mm. Unipunch custom metal fabrication c frame punching units will increase throughput reduce changeover time and enhance overall quality.

Figure 5 when the tooling has the optimal amount of die clearance the shear cracks join. Let s make holes faster. This balances the punching force and optimizes part quality and tool life top. Determine what size die you need for your punching application.

Components will indicate the amount of clearance and whether the punch and die have optimum cutting clearance or excessive clearance or misalignment. Material thickness x 15 example. Clearance is determined by the type and thickness of the material being punched. Each test result was recorded and a mathematical model was created.

Clearance is the amount of extra space required in the hole of the die to allow the punch to pass through to punch a hole in the material. Let s make holes faster. When the die clearance is too tight the punch process creates secondary cracks which raises the punching force and shortens tool life bottom. For more information please read proper die clearance.

20 25 long service life of dies.