Punch metal power is one of the most common and important calculations that a metal fabricator needs to make when working on a given metal fabrication project. In this article, we are going to walk through how to calculate punch metal power in metal fabrication.
How is Punch Metal Power Calculated?
You can calculate punch power using the following number sets and equations:
- F = U x S x Rm
- F = Punch force in Kilonewton (10 kN = 1 metric ton)
- U = Circumference or perimeter of the punch shape (in mm)
- S = Sheet thickness (in mm)
- Rm = Tensile strength (in N/mm²)
- For Stainless Steel (1.4301) 720 N/mm²
- For Mild Steel (St 37) 420 N/mm²
- For Aluminium (AlMg3) 220 N/mm²
- f = factor between 0,5 – 0,95 when using punches with shear.
For round holes, the minimum diameter should be greater than or equal to the thickness of the sheet. For shaped holes, the shortest side should be greater than or equal to the thickness of the sheet.
Minnesota Metal Fabrication Company
For more than 40 years, Data MetalCraft has been providing precision metal fabrication services to customers throughout Minnesota and across the country. We offer full-service, solutions-based metal fabrication, with a focus on quality and precision. Our team of experts will work with you to develop a strategy that meets the specific needs of your metal fabrication project. Whether you need high volume production, or just a prototype, we are fully equipped to help. Contact us today to request a free quote and speak with one of our metal fabrication experts about your project.
