· Acabados e inspección ·
J. S. Shin, C. B. Song, B. H. Kim, S. M. Lee, and B. M. Moon
Korea Institute of Industrial Technology, Incheon, Korea
67th World Foundry Congress
The optimization of chemical composition with appropriate heat treatments
was tried to develop a significantly reduced Mo, V, and Cr containing low
alloy cast steel for automobile blanking, drawing, and trimming dies,
possessing shorter production time and lower manufacturing cost as well
as maintaining working performances compared to the traditional die
materials. The effects of Si content on combinations of important
properties such as toughness, hardness, hardenability, and resistance to
softening on tempering in addition to strength increment were
systematically investigated. In order to evaluate the applicability as the
insert of cold pressing die, the mechanical properties were measured after
annealing treatment, quenching and tempering (Q/T) treatment, and flame
hardening, respectively.
