August 17, 2016 | By Steve Benson
When determining the backgauge position, you need to know the outside flange dimension and bend deduction, based on the actual radius you achieve.
July 12, 2016 | By Steve Benson
Anytime the inside radius or material thickness varies, there will be a change in the bend deduction. This is just as true when bending plastic as it is when bending sheet metal.
July 5, 2016 | By Steve Benson
When considering a new press brake purchase, focus on the tooling and forming method first. How will your staff react to changes? How steep will the learning curve be? Also, think about where your company is headed and the markets it serves.
May 9, 2016 | By Steve Benson
No press brake is best for every application, but you can find a press brake that’s best for you. To find that press brake, you need to match what’s available—hydraulic, hybrid, electric, mechanical, and other styles, along with the tooling—with what your operation needs.
April 13, 2016 | By Steve Benson
Four areas to consider when bending include (1) formability; (2) thickness and bend radius; (3) tensile, yield, and elongation; and (4) how to deal with bending tempered materials. This month, Steven Benson applies these to forming 6061 aluminum.
March 28, 2016 | By Steve Benson
Bending guru Steve Benson continues his discussion of notching, which has a symbiotic relationship with bending. Nowadays CAD systems take care of the layout calculations. Nonetheless, manual notch layout is still used for one-off products or in prototype shops.
February 15, 2016 | By Steve Benson
Whether you are a press brake technician or you are programming in CAD, having a basic understanding of notching can lead to better products and a more efficient operation.
January 27, 2016 | By Steve Benson
Bottom bending can work well for some aluminum grades, but it requires knowledgeable operators who fully grasp the bending method and know what precautions to take.
December 15, 2015 | By Steve Benson
This month Steve Benson summarizes his grand unifying theory of radius, bend deduction, and die selection with a review and complete rundown of the bend calculations, from estimating springback to working the bend functions.
November 11, 2015 | By Steve Benson
In this installment of the Grand Unifying Theory of bending, press brake guru Steve Benson describes bending calculations for aircraft tooling. He also covers the basics of bottoming
October 28, 2015 | By Steve Benson
Radius bends—defined here as any bend with an inside radius greater than 125 percent of the material thickness—require careful calculation, not only because of their significant springback, but also because of the tooling these bends require. This includes the use of relieved dies.
September 8, 2015 | By Steve Benson
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 | By Steve Benson
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 | By Steve Benson
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 | By Steve Benson
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.