Recent Content on for ASMA LLC

September 8, 2015
A grand unifying theory of bending on the press brake: Part I
Press brake guru Steve Benson proposes a new theory of bending, altering some long-held labels and definitions and introducing new formulas. Those long-held definitions worked well, but these new definitions and formulas may help a press brake technician become even more accurate in predicting how a part will form.
August 12, 2015
Predicting the inside radius when bending with the press brake
You can use some common rules of thumb to predict the inside bend radius when air forming, and the results you get are usually close enough, but with the help of a few online calculators, you can get even closer.
July 21, 2015
How to calculate the air-formed radius of different bend angles
Using the 20 percent rule works well when calculating the floated radius in an air form, but what about the radius at different bend angles? To calculate this, we start with geometry to find the arc length and radius at different bend angles. We then manipulate these results by factoring in real-world bending conditions.
June 29, 2015
Forming aluminum on the press brake: Bending soft, not sharp
Air bending soft aluminum has such a low tensile strength that it doesn't take much for a narrow punch tip to penetrate the surface and turn the bend sharp.
June 1, 2015
Precision sheet metal bending, bump by bump
Bump bending remains more art than science, especially for large and thick workpieces, but using the right tools and setup procedures help make this challenging brake operation much more efficient.
May 12, 2015
6 pasos para seleccionar exitosamente dados para prensas dobladoras
Elegir el dado correcto para una aplicación depende del herramental y de la prensa dobladora que usted tenga, y de las limitaciones de tonelaje de ambos.
May 3, 2015
The 4 pillars of press brake tonnage limits
To ensure you always work within the tonnage limits of your press brake and tooling, first calculate how much tonnage you need. Second, identify your tooling’s load limits. Third, calculate the sinking tonnage limit, which, if exceeded, can embed tooling into the ram or bed. Fourth, determine your press brakes’ centerline load limit.
April 30, 2015
How an air bend turns sharp
Why do air bends in cold-rolled steel turn sharp at an inside radius that’s about 63 percent the material thickness? It has to do with the relationship between forming forces and a material’s tensile and yield strength.
April 1, 2015
Minimum versus recommended inside bend radius
A material’s minimum inside bend radius shows the smallest radius that’s physically possible in an air bend, though your machines and tooling may not be able to handle the tonnage. The recommended inside bend radius, such as those found on bend allowance charts for air bends, shows you what’s optimal in typical applications
February 17, 2015
Why buy new tooling for a sheet metal hand brake?
When bending with a hand brake, you can use the tooling that came with the machine, but investing in a tool with a radius on the punch nose has its benefits.
2952 Doaks Ferry Road N.W.
Salem, OR 97304

Phone: 503-399-7514

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Steve Benson - President
503 399-7514

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