Extrusion process study from brass to bismuth and its machinability

Authors

  • Eusebio Dionicio Padilla Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Manuel Caballero Ríos Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Víctor Vega Guillen Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Oswaldo Gonzales Reynoso Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Luis Orihuela Salazar Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos

DOI:

https://doi.org/10.15381/iigeo.v14i27.766

Keywords:

bismuth, brass, recrystallization, grain size, machinability, extrusion

Abstract

The current study has determined that the materials from brass to bismuth, 1.11%, 1.46% and 2.48% respectively, have the following characteristics: the brass to bismuth material drawing, uniform round bar of 19 mm which microstructure is formed by α + β, shows inclusions of bismuth in the grain limits and in the same grain. The grain deformation is smaller on the surface, and it becomes bigger as it reaches the center. The mechanical properties of the 19 mm drawing material, I and II are bigger than the established by the ASTM B 16/B 16M, being the HRB hardness higher than the established by the norm. Also the material is wrought to obtain pieces for gas valves. The machinability index of the brass’s drawing materials that contains bismuth between 1.0 and 2.5% should be in a range from 85 and 90

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Published

2011-07-15

Issue

Vol. 14 No. 27 (2011)

Section

Artículos científicos

License

Copyright (c) 2011 Eusebio Dionicio P., Manuel Caballero R., Víctor Vega G., Oswaldo Gonzales R., Luis Orihuela S.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Rev. Inst. investig. Fac. minas metal cienc. geogr.

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Dionicio Padilla, E., Caballero Ríos, M., Vega Guillen, V., Gonzales Reynoso, O., & Orihuela Salazar, L. (2011). Extrusion process study from brass to bismuth and its machinability. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 14(27). https://doi.org/10.15381/iigeo.v14i27.766