Tube bending angle finder
If you get into some of these exotic materials you’re talking double-digit springback. You get into stainless steel and you get up to three degrees of springback - sometimes more, depending on the alloy of stainless you’re bending. “Typically, in gauged steel, 12 – 16 gauge and lighter, we’ll see a degree and a half of springback. If you need ten blanks, you can just cut ten blanks and you’re going to get ten good blanks. That’s the first benefit of these angle correction devices. Or, what happens quite often: if they need ten parts they’re going to cut fifteen for all the test bending. Or what some guys do is they’ll have blanks of the same material so they can test bend and sneak up on the bends that way. Right now, operators program the angles they want and then they’ll bend, measure, make an adjustment, then maybe re-hit that part.
Tube bending angle finder software#
“If there was no springback,” says Amada’s Ottens, it would be easy for control software to calculate how deep the ram needs to go to get the angle, and that would be the end of it. Thus, a sheet thickness deviation of 10% already leads to an angle deviation of 3 to 4 degrees, without considering other variables. With air bending, the angle is determined by the plunging depth of the upper tool. Also, the sheet thickness can vary between the sheet margin and middle due to the rolling process. Trumpf’s TruBend ACB uses a pair of sensor plates.Īccording to Trumpf, the manufacturing tolerances during sheet production allow sheet thickness fluctuations of up to ☑0%. Sometimes you can’t even discern where the inaccuracy started and ended, because it can occur anywhere in the process.” It’s important to be able to get in there and bend that thing up quickly and accurately without a lot of fussing around. “You’ve got these short runs and you spend so much time on setup, which kills you on short run applications.
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One of the biggest issues is setup times, especially for short runs, says Scott Ottens, Amada’s bending product manager. Many of today’s machines offer adaptive, in-process control over the bend angle to make adjustments in situ to ensure that precise angles are met-from the first part to the last. Variations in material thickness, hardness, and grain direction result in angle variations when air bending, slowing production and producing scrap.įortunately, technology has come to the rescue.