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Viewing 2 posts - 1 through 2 (of 2 total)
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what is the blank length required to create a formed channel. the material is 1/4″ plate, outside dimension of channel is 12″ and the flange lengths are both 2 3/4″.
I recommend u write this part http://sheetmetal.me/formulas-and-functions/k-factor/ about the K-factor to understand that u need, this factor depends of other parameters but in the last link u can see a table with a good aproximation and for the initial length http://sheetmetal.me/formulas-and-functions/bend-allowance/ that indicate this equation Bend Allowance = {\dfrac{\pi}{180} \cdot B< \cdot (IR + K \cdot MT)} well for more recomendation u can see the machinerys handbook
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