Description
Recently, higher straightness has become widely used for development of medical and electronic devices. Rotational blade straightening is commonly used to three-dimensionally straighten fine wires. In the current method, two blades are used for bending and counter bending a wire. In a new method examined in this paper, intentional twisting is applied for straightening, instead of the current bending method for stainless steel wires. Furthermore, it was revealed that straightness is greatly improved by tension annealing after straightening.