K. Nakano, O. Ishibashi, Y. Sumiya, K. Tateishi, Y. Miyazaki, K. Watanabe, T. Osaki, H. Hasuo, Trial Manufacture Of Functionally Graded Commutator Made From Copper And Resin, Blucher Material Science Proceedings, Volume 1, 2014, Pages 32-32, ISSN 23589337, http://dx.doi.org/ (www.proceedings.blucher.com.br/article-details/trial-manufacture-of-functionally-graded-commutator-made-from-copper-and-resin-10733) Palavras-chave:: ;