Original scientific paper

https://doi.org/10.17559/TV-20150429100430

Machinability improvement of powder metallurgy steels

Miklós Czampa ; Budapest University of Technology and Economics, Department of Manufacturing Science and Engineering Műegyetem rkp. 3, H-1111 Budapest, Hungary
Balázs Zsolt Farkas ; Budapest University of Technology and Economics, Department of Manufacturing Science and Engineering Műegyetem rkp. 3, H-1111 Budapest, Hungary
Tibor Szalay ; Budapest University of Technology and Economics, Department of Manufacturing Science and Engineering Műegyetem rkp. 3, H-1111 Budapest, Hungary

Abstract

Powder metallurgy is one of the possible competitive options among those up-to-date replication technologies that are able to produce final shapes with no need for subsequent machining. However, there are some special geometries which require the subsequent machining of certain parts produced by powder metallurgy. These include grooves, threads and cross bores. The goal of the research discussed in this paper is to determine the effect of the material composition changes on the secondary machining properties of powder metallurgy steels (PMS). Varying the carbon and the copper content of the powder mix cutting force measurement was carried out during face grooving tests in turning. Using the ranking number of the measured characters, the machinability of samples was evaluated with each powder mixes. The optimal percentages of the copper and the carbon content were determined based on the results of the experimental measurements.

Keywords

cutting force measurements; grooving test; machinability evaluation; material composition changes; metallic matrix composites; powder metallurgy

Hrčak ID:

160141

URI

https://hrcak.srce.hr/160141

Publication date:

19.6.2016.

Article data in other languages: croatian

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