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Effect of drawing in sigmoidal, concave, convex and conical dies on mechanical properties of high carbon steel wires

$ 0.00 - Tech. Paper #P05249 (Member Price)
$ 15.00 - Tech. Paper #P05249 (List Price)
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By Bartlomiej Pikos, Jan W. Pilarczyk, Bogdan Golis, and Rafal Wludzik, Czestochowa University of Technology, Poland, and Jan Krnac, Zelezarny a Dratovny  Bohumin, Czech Republic
2007
 
This paper investigates the effects of high-carbon steel wire dies with different approach zone shapes. It has been found that the highest number of twists and cycles to failure during rotational beam fatigue testing were achieved with wire drawn in sigmoidal or concave dies. These dies also decreased longitudinal residual stresses at the wire surface and improved surface roughness. It was also found that they achieved more homogeneous distribution of microhardness on wire cross sections than conical dies.
  
 
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