bending
bending
(OP)
I've heard that bending a36 hot rolled at 90 degrees to the bend line is the strongest way to do it. I've also heard that 45 degrees is the best ?
josh
josh
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RE: bending
I'm not sure what you're asking. Do you mean that you are bending a flat plate to increase it's strength?
RE: bending
josh
RE: bending
RE: bending
90 deg. is best. You must be bending it pretty sharply to crack it "against" the grain (rolling) direction. You also may have some pretty "dirty" steel, chock full of non-metallic inclusions.
You could ask your steel supplier to try and provide you with heats with smaller grain size, low S and C, and with the Mn close to the mid-point or higher if the spec.
RE: bending
Someone else asked about this previously in one of the forums, maybe this one. This is known as the materials' anistropic properties, or the directional attributes of the material.
RE: bending
RE: bending
RE: bending
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RE: bending
(I am assuming we are talking about cracks along the full length of the bend, rather than just the ends of the bend)
Flores
RE: bending
The steel we get is all Canadian if that helps anyone.