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Surface Enhacement of Large Dies and Moulds by Ball-Burnishing

[+] Author Affiliations
L. Norberto López de Lacalle, Aitzol Lamikiz, Julen Muñoa

University of the Basque Country

Paper No. IMECE2005-80748, pp. 1275-1278; 4 pages
doi:10.1115/IMECE2005-80748
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Manufacturing Engineering and Materials Handling, Parts A and B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Manufacturing Engineering Division and Materials Handling Division
  • ISBN: 0-7918-4223-1 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

In this paper the use of the ball burnishing process to improve the final quality of form tools (moulds and dies) is studied. This process changes the roughness of the previously ball-end milled surfaces, achieving the finishing requirements for plastic injection moulds and stamping dies. Ball burnishing can be easily applied in the same machining centres as those used for milling. In this way, both lead times and production costs can be dramatically reduced. In this paper the use of the ball burnishing process to improve the final quality of form tools (moulds and dies) is studied. This process changes the roughness of the previously ball-end milled surfaces, achieving the finishing requirements for plastic injection moulds and stamping dies. Ball burnishing can be easily applied in the same machining centres as those used for milling, as is shown in the three industrial examples. In this way, both lead times and production costs can be dramatically reduced. Both the burnishing system and its main parameters are taken into account, considering their influence on finishing. Examples of different materials, machined surfaces, and three industrial applications are explained, two on GGG70L and the last one in GS60. Final roughness are measured.

Copyright © 2005 by ASME

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