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How to predict the mechanical propeties of drawn wires
Dear Mechanicians,
Do you know how to predict the mechanical properties of wire after being drawn with several dies ? especially with Duplex stailess steel material.
In fact, due to cold work hardening mechanism of the material, after one or several passing dies the drawn materialwill have higher yield (and higher ultimate tensile strength). The problem is how to predict these properties which tend to change according to the level of diameter (area) reduction and number of passing dies (usually up to 10) and created temperatures (arise at dies because of friction). I have been a little familiar to Numerical simulation software like ABAQUS but it does not seem help. Another probelm is how to predict the residual stress after drawing but I persionlly found how to solve this residual stress already.
Could some one point out any research report or scientific papers which contain some prediction of those properties?
Thanks you
Regards
Hamanh
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Re: How to predict the mechanical propeties of drawn wires
This is not an easy question. The drawing process is very complicated and can be analyzed by cold working. In addition, texture (preferred orientation) will form in the process and this should be considered as well. After several dies, you may need to consider the grain size change. There are some papers available in the literature. Thanks.
Dear Mr. Xiadong
Dear Mr. Xiaodong Li,
Thank you for your answer. Yes, you are right that the drawign processes are very complicate. There are so many factors that have influences on properties of the output product such as tensile strength, ductility, and particularly the properties of input. Texture plays important role on this process so it should be incorporated into analysis. I have also seen some papers considering this phenomenon, so the question is: Do I really have to take into account this texture evolution ? Is there any phenomenonlogical rule that might be used for predicting the phenomenon like classical theories of anisotropy, non-isotropic hardening and so on ?
Thank you
regards
Hamanh