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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Why should you care about inside bend radii?

January 29, 2004

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Operators, designers, and engineers, why should you care about the inside bend radius if the customer doesn't? Because, ultimately, just how easy or difficult it is to produce a part depends on decisions made during the design stage. Misunderstanding terminology, process capabilities, or production methods can lead to mistakes that can make production more difficult. The most common mistake is incorrectly calculating and achieving the correct minimum inside bend radius.

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Improving bending operations

November 20, 2003

The Ottenweller Company Inc. is a heavy sheet fabricator that produces fabrications and assemblies for construction and agricultural equipment manufacturers and heavy-duty truck builders. The family-owned business employs 150 and operates from a 120,000-square-foot facility in Fort Wayne, Ind.

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New PC-based controls open path to better press brake utilization

November 6, 2003

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Press brake forming always has been a labor-intensive process. Shrinking lead-times and smaller lot sizes demand more frequent setups, which cut into productive output hours and put more pressure on manufacturing efficiencies. Fabricators need to find ways to reduce machine downtime for setup and operator adjustments.

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John Henry's last challenge or a Rube Goldberg device?

September 10, 2003

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Picking the right press brake has never been an easy task and it continues to get harder all the time. New hydraulic systems offer unbelievable control and sophisticated hydraulic valving that were unimaginable just a few short years ago.

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Hot spots for U.S. metal fabricated exports

July 10, 2003

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Increased global competition for customers on their home turf has driven U.S. metal fabricators to throw their nets wider to international markets. With this in mind, fabricators should look at the lists of the countries purchasing the most U.S. metal fabricated tools, machinery, products, and partially assembled goods as a road map to export opportunities.

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Press brakes: the quest for a happy ending

June 26, 2003

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Screen some press brake owners and manufacturers these days, and it's like they're all reading from the same script:

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Making your own punch and dies

May 29, 2003

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How many times have you looked through huge piles of blueprints for a prototype part or short-run job and thought, "If only I had that tool, this job would be a piece of cake?"

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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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