As I practice oxyacetylene welding, I’m also thinking about forming the steel parts needed for the wings - the next steps on my LSA project.
At the moment I’m unsure whether to bend the steel sheet (.062 is the thickest for now) using hammer blows or to bend by using pressure (brake).
Aircraft Spruce has some information which suggests the default is to pressure, if there is a dispute.
Is there a dispute? Some sources say NO to hammering, some say OK if done carefully.
I like Tony Bingelis’ descriptions and drawings which imply hammer blows (though I didn’t see where he says so explicitly).
At the same time, there are some good ideas for making a simple brake for bending steel.
Also, some sources say the bend radius for our 4130 should be 3X the thickness.
Other sources say to bend around a diameter of 3X the thickness.
How did you bend your parts?
At the moment I’m unsure whether to bend the steel sheet (.062 is the thickest for now) using hammer blows or to bend by using pressure (brake).
Aircraft Spruce has some information which suggests the default is to pressure, if there is a dispute.
Is there a dispute? Some sources say NO to hammering, some say OK if done carefully.
I like Tony Bingelis’ descriptions and drawings which imply hammer blows (though I didn’t see where he says so explicitly).
At the same time, there are some good ideas for making a simple brake for bending steel.
Also, some sources say the bend radius for our 4130 should be 3X the thickness.
Other sources say to bend around a diameter of 3X the thickness.
How did you bend your parts?
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