Insert your aluminum sheet into the brake beneath the removable clamp bar.
How to bend aluminium sheet metal.
Cut the section of metal out or otherwise prepare the metal to be bent by removing any burrs or sharp edges.
In other words if you re bending 1 8 sheet use a tool with a 1 8 radius to form the inside of the bend.
Make sure the bar is seated firmly inside the frame.
If you re bending 0 020 thick material use a 0 020 radius.
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Here s a good rule of thumb for most materials.
Let s consider a challenging job.
Now that you know your bend allowance take your protractor and draw a clear line with your marker across the point at which you will bend your sheet metal.
Say you re bending 0 25 in thick 6061 t6 aluminum to a 100 degree external angle 80 degree internal angle.
As a result the wipe die also determines the bend s inner radius.
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.
You d probably air bend by using a 3 0 in.
Mark your bend lines.
You will use the protractor to gauge the brake as you bend the metal little by little.
Then use your bend allowance to draw your second bend line the intervening distance between your bend lines bend radius.
It is important to make sure that the sheet is properly pushed onto the wipe die.
To make this easier you d start with your 6061 material in the soft t 0 state.
Die opening with a relieved profile.
Wipe bending or edge bending is another way to bend sheet metal edges.
Then place the clamp bar back down on top of the aluminum crosswise.
Simple sheet metal bender using a hand roller clamps and plywood.