If you need to reheat the metal and redo the bend.
Bending 16 gauge aluminum sheet.
The bending brake s design allows for a full 90ยบ capacity in steel as thick as 16 gauge and can handle stock up to 18 in.
The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.
The brake is compact and lightweight yet sturdy enough for professional production runs.
That s double the 60 ksi of our baseline material.
Insert your aluminum sheet into the brake beneath the removable clamp bar.
As an example if you want to bend 24 gauge sheet metal at a 90 angle the calculation would be.
You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k.
Next place the wood parallel and slightly behind the bending line.
It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.
Make sure the bar is seated firmly inside the frame.
Hence this 120 ksi sheet will air form a radius that s about double that of mild cold rolled steel or 32 percent of the die opening 16 percent 2.
0 017453 x 90 x 0 020 0 33 x 0 024 0 0438558984 inch bend allowance keep in mind that some metals are more brittle than others.
Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel aluminum and stainless steel.
Mark a bend line and place the sheet metal on the edge of your bench.
Wide handles material as thick as 16 gauge.
Finally bend the sheet up by hand to the angle desired.
And now the k factor.
The metal should bend but only bend it as far as it goes without forcing it.
Bend radii minimum bend sizes.
In sheet metal the k factor is the ratio of the neutral axis to the material thickness.
Stainless steel 1 20 ga.
Lift the clamp bar away from the rear of the brake frame and slide the sheet in perpendicularly to the direction you want to bend it.
Mild steel 1 brake shear slip roll 1.
Bends metal up to 18 in.
Then place the clamp bar back down on top of the aluminum crosswise.
Metal gauges below you ll find the info you need with our sheet steel stainless steel and aluminum sheet metal charts.
If you want a sharp 90 bend tap along the crease with a mallet.
Clamp the wood on top of the metal to the workbench.
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