August 1, 2013 | By Steve Benson
Selecting the press brake and tooling for a job involves much more than just making sure there’s enough brute force. You need to calculate how much tonnage the job requires, then determine the best machine and tooling to handle the tonnage.
June 3, 2013 | By Steve Benson
In air forming, the bend angle does not depend exclusively on the angle of the die. So why does the die angle change? There are two separate but overlapping answers; one relates to narrow die openings, and the other pertains to larger dies.
February 15, 2013 | By Steve Benson
By choosing a die opening as close to perfect as possible, your consistency will improve, your setup and run times will get shorter, and the risks of running into problems will be greatly reduced.
January 10, 2013 | By Steve Benson
Press brake guru Steve Benson describes how the method of bending—coining, bottom bending, or air forming—is very influential on how an inside bend radius is achieved.
November 9, 2012 | By Steve Benson
Why calculate values such as bend allowance, outside setback, and bend deductions? Because sometimes you will need to work your way around a bend on a print, and you may not have all the information you need to complete a flat pattern.
September 3, 2012 | By Steve Benson
Changing the die opening can dramatically change results during air forming. In precision sheet metal fabrication, choosing the correct die opening should not be a guessing game.
January 14, 2010 | By Steve Benson
Expensive options on a press brake won't guarantee knowledge transfer from a veteran press brake operator to a shop floor rookie. For knowledge transfer to occur, a shop needs experienced workers that can communicate and a younger work force eager to learn because they see a future in metal fabricating.
June 12, 2007 | By Steve Benson
Is the starting position of the flat part facing the wrong way or upside down to your natural flow? Are you working from left to right when your natural motion is right to left? If you are, you're fighting the current rather than letting the current do the work. Set up the press brake in such a manner that you work with your natural flow; by not interrupting your "chi."
March 7, 2006 | By Steve Benson
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.
November 8, 2005 | By Steve Benson
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.
August 9, 2005 | By Steve Benson
Using oversized V dies in bottom bending can damage press brakes and tooling, but used properly, these dies can help compensate for springback.
May 10, 2005 | By Steve Benson
Figure 1 The radius gauge fits squarely into the bend. Air forming, bottom bending, and coining are different forming methods that can be used to create various bends—sharp, radius, and profound-radius. Throw in a mix of operators and engineers with different ideas of what each...
February 8, 2005 | By Steve Benson
Figure 1 No Triggering Device Protection In the more than 25 years that I've been in the precision sheet metal trade, I have seen many examples of safety faux pas. Most were mistakes and oversights committed because of inattentiveness, lack of training, and inexperience. However,...
September 14, 2004 | By Steve Benson
This article grew out of an FMA discussion board posting about new press brake controllers and software in which someone asked, "Do I really need all of these bells and whistles?" A profound fact of today's technology-intensive world is that skilled press brake operators are now unnecessary. After...
May 4, 2004 | By Steve Benson
Air forming, bottom bending, and coining are metal forming methods. Air forming, the most common, is a three-point operation. The actual inside radius produced is based on a percentage of the V-die width, regardless of the sharp–radius relationship. Selecting the correct die width can be...