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MICROSTRUCTURAL EFFECTS IN THE STEEL HWS 1.2379 APPLYING THE PROCESS OF PLASMA TRANSFERRED ARC PTA.

Published online by Cambridge University Press:  28 February 2012

A. Aguirre*
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México Tel: 4 11 32 00.
F. García
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México Tel: 4 11 32 00.
J. Acevedo
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México Tel: 4 11 32 00.
J. Andrade
Affiliation:
Asociación de Investigación Metalúrgica del Noreste (AIMEN). Relva, 27 A Torneiros - 36410 Porriño - Pontevedra - España. Tel: +34 986 344 000.
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Abstract

At present, the industrial sector requires the recovery of tool steel components subjected to severe wear which are built with steel HWS these have the same properties in all tribology directions and have great success in building tooling. In this paper, we recover the previously HWS steel machining with a fillet of 2mm caused by the metallurgical recovery of the component, applying the process of plasma transferred arc PTA which has very good fats dilution properties in comparison to other conventional processes currently applied for the recovery of tooling, such as GTAW, SMAW, SAW. The experiment was conducted with input D2 and M2 with one and two welding seams, making the assessment metallography, hardness and wear tests pin-on-disk. Finding a decrease in the hardness of the interface line, according to the evaluation of wear pin-on-disk, had a higher wear rate of the filler metal in the M2 D2.

Type
Research Article
Copyright
Copyright © Materials Research Society 2012

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References

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