The bending technology area includes all manner of machines and processes for bending sheet metal, including press brakes, folders, panel benders, corner formers, ironworkers, notchers, orbital formers, and roll benders. It also has information on accessories such as gauging and backgauging systems.
December 15, 2015
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.
December 3, 2015
How does a plate rolling rookie become a guru? According to Ken Pecho, project engineer at Chicago Metal Rolled Products, it requires good communication. So how do you really define good communication? For plate rolling (and many other shop skills), you can break it down into three critical components: collaboration, observation, and patience.
December 1, 2015
Southern Metalcraft Inc.’s press brake veteran will be retiring at the end of 2016, and he is now passing the torch to someone who never worked on a press brake until 2009. So how did the rookie learn so quickly? Technical aptitude plays a role. But more important than that, the veteran and rookie get along and just work well together.
November 11, 2015
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
November 4, 2015
One theme carried throughout a recent LVD press tour of custom fabricators in Holland: With fast changeover and the ability to access the right information at the right time, even a custom fabricator with the highest product mix can achieve smooth part flow.
October 28, 2015
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.
October 12, 2015
Improved tool storage at the press brake, easier tool identification, fast tool loading/unloading (including heavy tools), and proper positioning of tooling in the press brake can make life easier for any press brake operator--experienced or not.
September 8, 2015
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
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.
August 4, 2015
The Minneapolis manufacturing facility for Unison Comfort Technologies was being stretched to the limits trying to keep up with orders for its HVAC products. New fabricating technology was seen as the only way to meet current production needs and add capacity, but the company needed a new approach to its part flow as well if it were to make the most of any reshuffling of the shop floor.
July 27, 2015
At S&B Machine in Mobile, Ala., Head Programmer Danny Brown streamlines bending by making sure the right operators have the right information at the right time.
July 21, 2015
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.
July 15, 2015
With the right tooling, you can accomplish horizontal bending—that is, where the sheet remains horizontal during the bend cycle—on the press brake. In general, horizontal bending on the press brake is accomplished with either wiping tools or rotary-style tools.
June 29, 2015
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.