Abstract
Improvement of the Mechanical Properties of Spheroidized 10B21 Steel Coil Using Taguchi Method of Robust Design
Highlights
An empirical research study demonstrates that the Taguchi method is useful for improving the quality of an AISI 1022 steel wire for cold heading.[9]. The results show that the spheroidized annealing temperature and prolonged heating time have the greatest effect on the mechanical properties of steel wires
When the wire is produced by drawing a wire coil to a wire, the tensile strength, ductility, and hardness are respectively about 635 MPa, 0.09, and 94.5 HRB owing to heavy plastic work
The spheroidized annealing treatment of steel wire coils affects the cold formability for manufacturing fasteners
Summary
The spheroidized annealing treatment of steel wire coils affects the cold formability for manufacturing fasteners. Shin et al[7] studied the enhanced spheroidization kinetics in terms of carbon dissolution from cementites and defects induced in cementites by a severe plastic deformation, and revealed that the increase in accumulated strain in the equalchannel angular pressed steel decreased the spheroidization temperature and time. An empirical research study demonstrates that the Taguchi method is useful for improving the quality of an AISI 1022 steel wire for cold heading.[9] The results show that the spheroidized annealing temperature and prolonged heating time have the greatest effect on the mechanical properties of steel wires. Joo et al[12] indicated that the cementite in steel spheroidizes much more after a severe drawing, and SEM results revealed that the prior cold working could increase the spheroidization ratio with cold workability improved by subcritical annealing
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