Bending Articles

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.

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Bending with kid gloves - TheFabricator.com

Bending with kid gloves

March 10, 2009

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Polyurethane film, inserts, pads, and bottom dies can help prevent marring and, in some cases, allow the die to take on a variety of materials and gauges, including perforated metal and diamond tread plate.

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Hemming Part

Bending outside the box

January 27, 2009

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For the best, most cost-effective parts, designers should consider fabrication from the get-go. This article shows examples of what those parts look like.

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Green machines

January 27, 2009

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Electric and hybrid electric-hydraulic press brakes give fabricators an energy-saving bending alternative.

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Optoelectronic Guarding

Getting close, bending safe

November 25, 2008

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Press brake operators work under some unique conditions that call for unique considerations in safeguarding.

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Adaptive Bending Laser Sensing

Reasons for a press brake upgrade

October 14, 2008

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Modern press brakes add intelligence to the machine control and bring programming offline.

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Precision air bending

The evolution of precision bending

June 17, 2008

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Three decades ago bottoming with penetration, or coining, was the only way to achieve high accuracies on press brakes, and this meant fabricators endured high tooling costs. Over the years precision air bending with CNC hydraulic press brakes using precision-ground tooling evolved to become the dominant forming method in the precision market. However, it took some significant machinery advances to get there.

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Press brake

Setting the stage for press brake productivity

June 17, 2008

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Tooling manufacturers have introduced tooling designed to overcome the longstanding problems associated with staged bending.

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Roll bender Powder River

New roll bender 'bales' out farm implement manufacturer

May 13, 2008

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Powder River, a Provo, Utah-based fabricator of farm implements, turned to KNUTH Machine Tools USA for a three-roll bender the company uses to make its round bale feeders for horses.

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Special press brake tools

Specials simplify the complex, speed productivity

February 12, 2008

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Standardized press brake tooling, absolutely necessary for a lean organization, keeps a shop flexible, but at the same time, ignoring specials would be a big mistake. If their slightly longer setup times also lead to a drastic increase in throughput, special tools make good business sense.

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Offline bending software

2 strategies for optimizing bending operations

January 15, 2008

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Fabricators typically encounter bottlenecks during setup and production in their press brake bending operations—obstacles that lead to downtime and fewer operators actually processing material. Representatives from Amada, LVD Strippit, Bystronic Inc. addressed these issues in a recent presentation. The two largest problems? Performing non-value-added steps and having to compensate for material variations. Fortunately, some new technologies and two key strategies can help fabricators optimize their press brake operations in these areas.

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CNC Tube Bender

Automatic or manual?

October 9, 2007

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While automation can increase throughput and reduce labor, it doesn't solve manufacturing problems. A manual process that produces poor-quality or inconsistent parts will simply do so at a faster rate if automated. Understanding the process and process variables is the key to troubleshooting problems and resolving them to get the maximum gain from automation.

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San Francisco Oakland Bay Bridge

Dealing with Mother Nature's wrath

October 9, 2007

Protecting a two-mile-long, 10-lane bridge from earthquake damage is not an easy task. Replacing the eastern span of the San Francisco-Oakland Bay Bridge requires the talent and time of numerous design firms and fabricators and tens of thousands of workers. One of the more interesting fabrication...

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Toro turf maintenance equipment

Toro trims waste with press brake tooling upgrade

September 11, 2007

Outdoor equipment manufacturer Toro Co. regularly sends out bids for parts, forcing its own manufacturing plants to compete with outside vendors. Toro's manufacturing plants face the same competitive pressures as any other manufacturer, so its plant in Shakopee, Minn., analyzed its forming operations and decided to replace its press brakes and upgrade its tooling.

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Part forming machine

The tao of forming order

June 12, 2007

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Is the starting position of the flat part facing the wrong way or upside down to your natural flow? Are you working from left to right when your natural motion is right to left? If you are, you're fighting the current rather than letting the current do the work. Set up the press brake in such a manner that you work with your natural flow; by not interrupting your "chi."

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Pipe fabricator saves big time with big bends

April 10, 2007

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Universal Pipe and Steel Supply, Fort Myers, Fla., needed a roll bender with greater capacity to capitalize on the market for larger pipe sections. The company found its answer with a four-roll bender from Bertsch.

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