A problem in press forming s heet steels having tensile strength of 780mpa.
High strength hot rolled steel sheets for automobiles.
Request pdf high strength hot rolled steel sheets for automobiles large weight reduction by application of high strength steels to underbody parts can be expected since relatively thick sheets.
In this paper several.
Thus the yield strength of cold rolled steel is higher than that of hot rolled steel.
High strength hot rolled steel sheets for automobiles manabu takahashi 1 osamu kawano 2 teruki hayashida 3 riki okamoto 4 hirokazu taniguchi 4 abstract large weight reduction by application of high strength steels to underbody parts can be expected since relatively thick sheets are now adopted.
As an example a hot rolled steel product may have a yield strength of 235 mpa.
These steel sheets can be an alternative to steels for hot stamping because of the high yield strength.
The rolls induce plastic deformation.
Today s ahss for automotive.
Hot rolled high strength sheet steels have been applied to suspension parts in automobiles 6 for the weight reduction.