Bending

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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Gauging difficult parts at the press brake

March 27, 2003

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Gone are the days when engineers and draftsmen slaved for hours over drafting boards with a pencil and slide rule in hand (does anyone remember slide rules?). Today we've moved beyond slide rules and even beyond hand-held calculators to personal computers and mainframes to do much, if not all, of our design work. CAD and CAM software has made this possible.

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How air forming works

February 13, 2003

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Air forming began its rise in popularity during the mid- to late 1970s, becoming the most prevalent method of forming on a press brake.

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Shop employee image

What the? This can't be done!

October 24, 2002

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Carefully planning the forming order can make even the most daunting project less complicated and problematic.

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Using proper press brake setup procedures

August 29, 2002

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Think about it: If your setup is off, the rest of your press brake operation will soon follow. Take the time to do your setup right, and you won't be doing it a second time.

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Things every press brake operator should know

August 8, 2002

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Giving operators the know-how they need to produce parts efficiently and cost-effectively can be as easy as 1-2-3-4.

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Un-balanced tooling diagram figure 1

Can I form a box that deep?

July 11, 2002

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There's no reason you can't form sharp, deep boxes with a press brake consistently. You just have to be familiar with what your tooling can and can't do under certain circumstances.

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Using benchmarking for bend deductions

May 30, 2002

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Benchmarking is a very good idea for your operation ... just make sure your benchmarks are your own.

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Bumping up large-radius bends

May 30, 2002

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The step-bending method can be a good way to achieve large radii without having to spend huge sums of money on special tooling.

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Steel bending machine

Bending hot 'n' cold

May 16, 2002

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The two basic types of structurals are load-bearing and architectural; the two bending methods are cold and induction. Understanding bending criteria is the key in determining which bending method is best for the application at hand.

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Sheet metal bending diagram

Reviewing bottom bending and nested parts

April 15, 2002

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Looking to nest parts tightly, but can't win the battle against the material's natural grain? Take heart—bottom bending could be your key to success.

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Learning lessons from the past

February 14, 2002

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For several years my work as a press brake consultant has taken me into many different fabricating shops. My job is to seek out problems and try to find solutions that make press brakes more productive. I have encountered many different situations, and I thought perhaps sharing some of the problems...

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Press Brakes and (much) More

January 31, 2002

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The flow of product through you shop is a key issue in determining your prosperity as a business. Drawing a little insight from the Chinese concept of feng shui might help you achieve the kind of flow you're looking for.

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Mobilizing equipment-saving time and talent

November 29, 2001

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It's hard to believe that machines such as press brakes and hardware-setting equipment can move around on wheels or be moved by forklift and still function correctly. But I can tell you from experience that it is true and can be done.

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Adaptive bending

November 15, 2001

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Adaptive bending allows press brake operators to measure a bend angle during the forming process and feed the information to the numerical control. The article discusses springback and how to determine it and the fact that when air bending, 90 percent of problems result during initial setup, and only 10 percent result from springback. It also discusses using an angle control system, methods of measuring angles, and requirements for angle measurement systems.

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Design tips for sheet metal: Bend relief, small holes, hole distortion near bends, and minimum flange widths

October 25, 2001

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The article discusses making small holes and when to use a punch or laser cutter, inside radius measurements and how they differ depending on whether you are coining or air bending on a press brake, and adding bend relief to prevent tearing material.

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