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January 27, 2014
Bending basics: Why profound-radius bending is a different animal
Large or profound-radius bends are those in which the inside bend radius exceeds eight times the material thickness, but is still too small to move to the plate roll. At that point, press brake operation becomes a different animal.
To... Read more...
January 2, 2014
Bending Basics: The fundamentals of heavy bending
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. Likewise, plate steel varies in strengths from mild varieties to some very... Read more...
August 1, 2013
Bending Basics: Why tonnage matters
Selecting the press brake and tooling for a particular job involves much more than just making sure there’s enough brute force. Make one miscalculation, and pieces of tooling can fly while, at the same time, you may exceed the ram center... Read more...
June 3, 2013
Bending Basics: Why do die angles change?
From the beginning of the Industrial Revolution until air forming became the press brake bending method of choice in the 1970s and 1980s, fabricators all bottomed or coined sheet material. When bending plate or sheet to angles greater than 90... Read more...
February 15, 2013
Finding the perfect die opening
Bottom bending and coining “stamp” the inside bend radius into the part. In air forming, the inside bend radius is “floated” as a percentage of the die opening. Once we determine the radius, we can calculate the... Read more...
November 9, 2012
The basics of applying bend functions
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 the part as shown on the print—unless some allowance for the bend is taken into... Read more...
February 10, 2009
Press brake training now available on DVD
Asma LLC, a provider of precision sheet metal training, now offers its press brake training through a series of DVDs. The 30- to 45-minute DVDs comprise the same material as Asma's full-day in-house program. Each video covers different aspects... Read more...