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December 2, 2013
Bending Basics: The fundamentals of heavy bending
A plate’s grains run parallel to the rolling direction.
While sheet metal gauges run from 0.005 to 0.249 inch thick, aluminum and steel plate thicknesses start at 0.250 in. and go all the way up to 13 in. or even more.... Read more...
August 1, 2013
Bending Basics: Why tonnage matters
Deflection is the temporary deformation of the press brake ram and bed that occurs naturally under a load. An overtonnage situation can push a brake beyond its deflection limit, causing upset, where the ram and bed stay in a... Read more...
February 15, 2013
Finding the perfect die opening
These are the standard die shapes, though there are many other styles. Rolla-V, urethane, and “specials” are not addressed in this article.
Bottom bending and coining “stamp” the inside bend radius into the part.... Read more...
November 9, 2012
The basics of applying bend functions
The bend allowance calculation always uses the complementary angle.
When a sheet metal part is bent, it physically gets bigger. The final formed dimensions will be greater than the sum total of the outside dimensions of... Read more...