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.
June 25, 2015 | By Dan Davis
Wisconsin Metal Parts Inc., Waukesha, Wis., has grown its metal fabricating business very aggressively in recent years. The latest machine tool technology has helped, but its employees have made it stay in control and on course.
June 1, 2015 | By Tim Heston
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 11, 2015 | By Eric Lundin
Sheet metal worker Paul Ziegman puts in long days building stainless steel kitchen equipment for restaurants and other food-service businesses in and around Spokane, Wash. He recently opened his own such business using the same equipment and skill set.
May 3, 2015 | By Steve Benson
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 | By Steve Benson
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 30, 2015 | By Kevin Bartels
Is producing a hem on a part more suitable for a panel bender or press brake? Does a part less than a foot long make sense for a panel bender? Can a box design with a 13-in. wall be done on a panel bender? Part designs help to reveal the answers to these questions.
Setting the grip die securely in rotary draw bending requires close attention to three factors: the pressure exerted by the machine, the contact area, and the material’s coefficient of friction.
April 1, 2015 | By Steve Benson
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
March 4, 2015 | By Dan Caprio
Traditionally bending high flanges on a punch press just hasn’t been practical, but new machines and software are changing the situation. Today, flanges up to 3 inches high can be bent not by the press brake, but by special tooling on the punch press.
March 4, 2015 | By Jamie Crandall
The time that a press brake operator spends walking to a control or maneuvering a part is time the customer is not paying for. Those seconds add up over the day and cut into a fab shop's profitability. New approaches to bending, however, can help to remedy that.
February 16, 2015 | By Steve Benson
Choosing the right die for an application hinges on the tooling and press brakes you have, and the tonnage limitations of both.
January 22, 2015 | By Dan Davis
As metal fabricators look to increase throughput in their bending departments while also facing a dearth of seasoned press brake operators, they may find their answer in the form of automated tooling change technology now found on the latest generation of brakes.
December 12, 2014 | By Amanda Carlson
Ron Covell’s 50-year career manually building autobodies for street rods, dragsters, and motorcycles is impressive, to say the least. But he doesn’t plan on hoarding all of the expertise he’s garnered over the years. His latest passion, of the last 20 years anyway, has been sharing information in his traveling workshops to current or up-and-coming autobody enthusiasts. It’s what he hopes is his longest and most impactful legacy.
An organized workspace is an efficient workspace. Press brake technicians should have all the tools they need to perform a changeover. Unlabeled punches and dies, stored haphazardly on a rack, on the floor, or in boxes, only make their jobs harder.