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.

Filter Content
Gooseneck punch

Bending the new breeds of high-strength steel

March 13, 2007

By:

Several new breeds of high strength steels have arrived that bring with them a host of new opportunities. However, these new breeds also bring with them special challenges not common to bending mild steel, and with them, the need for new tools and new rules for proper bending.

Continue Reading

Dedicated manual tube bending

Are you dedicated to manual bending?

January 9, 2007

By:

At a time when automated equipment is the most popular and well-known method for bending tubes, there is still a demand for dedicated manual tube bending (DMTB) units to help fill a void that the use of CNC equipment sometimes creates.

Continue Reading

Press brake safety

Safety still pressing for press brakes

January 9, 2007

By:

The leading trend in press brakes safety is to ensure safety without sacrificing speed or hampering operators' ability to work efficiently, say press brakes manufacturers. This starts with tooling, including segmented or sectionalized tooling that is lighter and easier to handle; safety features that prevent unsecured tooling from falling, and fewer tool changes. It is further achieved with light curtains, camera and vision-based sensors, and mechanical side and rear guards, as well as automation and robots.

Continue Reading

Machine tooling

Avoiding common bending problems with common sense

December 12, 2006

By:

Tooling determines the outcome of a bending operation. Whether an application is simple or complex, matching the right tooling with the bending equipment and method will save both time and money.

Continue Reading

Manufacturing evolution in the job shop

October 10, 2006

Gardner Manufacturing, Horicon, Wis., needed automation and flexibility to keep up with more challenging customer demands. The contract manufacturer found its answer with two laser cutting devices with automated material handling and three new press brakes capable of precision bending.

Continue Reading

Leaning on press brake tooling

September 12, 2006

By:

Press brake tooling can play a significant role in minimizing setup, reducing WIP, increasing throughput, and minimizing waste—the goals of lean manufacturing. Some new developments are staged bending, push-button loading, sectionalized tooling, and precision-ground tools.

Continue Reading

Fabricator puts the brake on bend inconsistency

June 13, 2006

By:

Well-known for agriculture, Nebraska also has a strong manufacturing base. OEMs include Kawasaki, Husqvarna, Eaton, Thermo King, Claas, and Case New Holland. Standard Iron & Wire, a Minnesota-based fabricator, opened a manufacturing facility in Grand Island, Neb., to take advantage of this fertile manufacturing environment. Chief among its concerns was finding a press brake that would produce accurate, consistent parts. It purchased two LVD press brakes with the company's adaptive bending technology.

Continue Reading

Roll bending a wind tower with a three-roll bender

April 11, 2006

By:

Three-roll bending with a variable axis offers an advantage over four-roll bending for bending conical sections in that it allows for a good leading edge and rolling without having to lift the plate to pivot it with a bridge crant.

Continue Reading

Taking the danger out of bottom bending

March 7, 2006

By:

It is all too easy to ruin a tool or upset a ram if bottom bending is done incorrectly, which is why many manufacturers do not recommend bottom bending when using their equipment or tooling. Understanding V-die selection and the effects of your decisions should be first and foremost in any bending operation, including bottom bending.

Continue Reading

Simplicity 'n' press brakes

February 7, 2006

By:

Simplicity Manufacturing Inc. of Port Washington, Wis., needed new press brakes because it was about to increase its laser cutting capacity. The outdoor power equipment manufacturer turned to a vendor of Turkish-built press brakes for help and found the answer for which they were looking.

Continue Reading

How to prevent press brake ram upset

January 10, 2006

By:

Every press brake is subject to normal deflection under load. This deflection is corrected by shimming. If you deflect behond design limits, you will put a permanent bend in the ram and this is known as ram upset. You cannot adjust to compensate for ram upset. Remachining of the ram is the only solution. To avoid causing ram upset be careful about bending loads above your tons per inch limit and only air bend if possible.

Continue Reading

Say ye shibboleth!

November 8, 2005

By:

Properly trained press brake operators understand the nuances of tapers. Armed with this knowledge and following a five-step process that includes inspecting tooling and materials, precise setup, checking the part, and making necessary adjustments, these skilled workers can complete machine setup and produce quality parts in minimal time.

Continue Reading

Bend allowance and springback in air bending

September 13, 2005

By:

This study illustrated that, when the thickness and stress-strain curve of the sheet material are known, it is possible to predict with acceptable accuracy the bend allowance, springback angle, and punch stroke to obtain the desired final product dimensions.

Continue Reading

Software brings new intelligence to press brakes

September 13, 2005

By:

The types of press brake projects that remain in the U.S. tend to be those requiring smaller lot sizes, shorter turnarounds, and more complex shapes than those going offshore. Enter the need for smart press brakes—those with the capability to store and apply process intelligence. Today's shrinking lead times and smaller lot sizes demand more frequent setups, which cut into production hours. Graphical machine controls and offline programming can help maximize operational time by eliminating the time for trial-and-error setup and improving first-part accuracy.

Continue Reading

Oversized V dies: the effects on bottom bending

August 9, 2005

By:

Using oversized V dies in bottom bending can damage press brakes and tooling, but used properly, these dies can help compensate for springback.

Continue Reading