Content tagged with "air-bending"
Results: 5
Article
March 10, 2009
Bending with kid gloves
Figure 1
These ¼-inch, 24-in.-radius, prepainted aluminum panels were bump-formed using a urethane pad system as the bottom die. (Photo courtesy of Polyurethane Products Corp.)
Press brake tools aren't kind to sensitive surfaces. They produce die marks and leave scratches on... Read more...
Article
June 17, 2008
The evolution of precision bending
Photo courtesy of Wila USA, Hanover, Md.
Precision bending has come a long way in recent decades. What used to be considered "precision" in the 1970s wouldn't pass muster today. Then a fabricator might have considered ±1 degree a precision bend; today a precision bend is within a half... Read more...
Article
April 10, 2007
Roll form tooling design for air bending
When a bend is formed with the air bending process (air bend), the interior of the bending corner can't be reached by either the top roll or the bottom roll, making it difficult to control the part's profile and dimensions. Figure 1 illustrates a typical air bend. The theoretical formed profile... Read more...
Article
September 13, 2005
Bend allowance and springback in air bending
Figure 1 In air bending, a sheet is placed in the die, and the press ram descends and bends the sheet into a V shape. Figure 2 Bend allowance (also known as bend deduction) can be used to predict the initial flat length of the sheet. Source: O. Diegel, "Bend Works: The Fine... Read more...
Article
June 8, 2004
Pumping up productivity on older press brakes
Tall gooseneck punches can bend deep parts and parts with complicated bend sequences. In recent years faster, more efficient cutting and blanking methods have emerged. However, these cutting efficiencies and corresponding increases in productivity have not always been met with similar... Read more...
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