Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???
Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???
(OP)
Hi All
I am evaluating if I should do a Tensile , torsion or bending test on the steel wires that we use for cold forming, since I need to use the flow curves in simulation , I was doubting that if it changes so much on different lots of material , and different diameters, or it's enough to do the test once , since there is no heat treatment we do on the material during production , just that the wires are anealled in their production , and the are C4D steel , so low carbon, but I need to know well about their deformability to simulate the deformatin correctly
what are your advices ?
I am evaluating if I should do a Tensile , torsion or bending test on the steel wires that we use for cold forming, since I need to use the flow curves in simulation , I was doubting that if it changes so much on different lots of material , and different diameters, or it's enough to do the test once , since there is no heat treatment we do on the material during production , just that the wires are anealled in their production , and the are C4D steel , so low carbon, but I need to know well about their deformability to simulate the deformatin correctly
what are your advices ?





RE: Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???
The properties will change with diameter, typically smaller wire is stronger.
The spec will have minimum tensile requirements and it will call out the testing.A bend test is common with wire specs.
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P.E. Metallurgy, Plymouth Tube
RE: Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???
And one question, why the geometry parameters are not mentioned in metal forming books and handbooks like no where the effect of diameter is studied on the maximum strain or hardening rate? Just mostly in failure or damage?
Shall you also please tell me some specific standards to use? I think there are so many, some regarding to deformability, some to microstructure
RE: Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???
The spec will depend on the alloy and what spec you are trying to make bolts to meet. Often the end product spec will tell you which raw materials are allowed.
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P.E. Metallurgy, Plymouth Tube
RE: Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???
the steel is C4D , so it's low carbon , by end product, if you mean the application , the mechanical properties of them is not important cause it's gonna be used in wood, so only important thing is that it doesn't exceed forming limit. For that I need to have an apropriate test
RE: Standard ASTM E290 | Developed by Subcommittee: E28.02, 180 degree bend test for Wire ???