Formula for rod bend length
Formula for rod bend length
(OP)
Hello,
I would like a general formula for calculating the length of a bend in steel (and aluminum?). I know that a precise formula would take into account various properties, but neither me nor my Harbor Freight bender need that level of precision.
My immediate project is to bend (e.g. 90 degrees) cold roll rod, probably 3/8" od, to make planter box holders for my wife. I would like to calculate the approximate length of material needed for each piece. I didn't find help in Machinery's Handbook so I turn to you folks. I like to put things in spreadsheets, so this formula would join the sheet metal formula.
I realize I could bend some rod, measure it, and life happily every after -- but my spreadsheet would continue to have a gap.
Thanks,
Alex
I would like a general formula for calculating the length of a bend in steel (and aluminum?). I know that a precise formula would take into account various properties, but neither me nor my Harbor Freight bender need that level of precision.
My immediate project is to bend (e.g. 90 degrees) cold roll rod, probably 3/8" od, to make planter box holders for my wife. I would like to calculate the approximate length of material needed for each piece. I didn't find help in Machinery's Handbook so I turn to you folks. I like to put things in spreadsheets, so this formula would join the sheet metal formula.
I realize I could bend some rod, measure it, and life happily every after -- but my spreadsheet would continue to have a gap.
Thanks,
Alex





RE: Formula for rod bend length
hope this helps.
-pmover
RE: Formula for rod bend length
Similarly you can use any number of degrees as a ratio of the total circumference (360 degrees)
Stephen Argles
Land & Marine
www.landandmarine.com
RE: Formula for rod bend length
RE: Formula for rod bend length
RE: Formula for rod bend length
There's a nice discussion about this subject: http://www.condor-rebar.com/news-articles/2011-03-calculating-length-of-bent-bars.html
TTFN
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RE: Formula for rod bend length
RE: Formula for rod bend length
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