Influence of sliding frequency on reciprocating wear of mold steel with different microstructures. Póster
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URI: http://hdl.handle.net/10317/881Compartir
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Bermúdez Olivares, María Dolores; Iglesias Victoria, Patricia; Jiménez Ballesta, Ana Eva; Martínez Nicolás, GinésGrupo de investigación
Grupo de Ciencia de Materiales e Ingeniería MetalúrgicaÁrea de conocimiento
Ciencia de los Materiales e Ingeniería MetalúrgicaPatrocinadores
We thank MEC (Spain), EU FEDER (MAT2005-00067, MAT2008-01670) for financial support.Fecha de publicación
2008-09Cita bibliográfica
BERMÚDEZ OLIVARES, María Dolores et al. Influence of sliding frequency on reciprocating wear of mold steel with different microstructures. En: International Conference on Abrasive Processes (1ª: 2008: Cambridge, UK) 1st International Conference on Abrasive Processes (ICAP). Churchill College, Cambridge, UK, 21 – 25 September 2008Palabras clave
MicroestructurasMoldes de acero
Desgaste de moldes de acero
Frecuencias de deslizamiento
Abrasión
Resumen
Large forged steel blooms are employed to fabricate molds for
plastics used in the automotive industry. Each mold is expected to
produce a few millions of pieces in its life. Wear under service
conditions may be severe and may combine with other stresses to
cause crack nucleation and failure.
The present manufacturing process consists of machining
pre-hardened blooms. The dimensions of the blooms use to exceed
the hardenability of the steel, thus different microstructures occur at
increasing depths, all of them being affected by the subsequent
tempering.
Due to finishing operations, any of the microstructures occurring at
different positions in the original bloom can be found at the mold
face. Thus, steel properties and wear resistance should be studied
as a function of the microstructure.
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