Frictional properties of new developed cold work tool steel for high tensile strength steel forming die

Currently developed tool steel SLD-MAGIC™ was examined and compared with other SKD11 (corresponding to AISI D2) type tool steels from the view point of machinability, friction property and anti-galling property. The experimental results indicated the SLD-MAGIC shows very low kinetic friction coefficient and shows excellent machinability. The anti-galling property of the alloy was studied and compared with typical SKD11 and model alloys eliminating characteristic elements from the newly developed steel. The anti-galling property of the alloy was discussed with a role of elements included.

► Omnidirectionally novel AISI D2 type tool steel called SLD-MAGIC has been developed.
► It creates new mold market for high strength steel forming due to its self-lubricity.
► Friction coefficient is depressed by this property in spite near room temperature.
► In this study, this mechanism and role of additional element are investigated.