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.
January 9, 2007
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.
January 9, 2007
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.
December 12, 2006
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.
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.
September 12, 2006
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.
June 13, 2006
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.
April 11, 2006
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.
March 7, 2006
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.
February 7, 2006
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.
January 10, 2006
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.
November 8, 2005
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.
September 13, 2005
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.
September 13, 2005
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.
June 14, 2005
Reducing nonvalue-added time—back guauge origin, nonprecison clamping surfaces, die shimming, scrap, and inefficient tooling storage—over time can save thousands.