@inproceedings{inproceedings6a1bf91b, title = {Comparisons of the thrust and torque during drilling of GFRP composites using trepanning tools and twist drills}, author = {Batalha, Gilmar Ferreira and Stipkovic Filho, Marco and Delijaicov, Sergio and Bordinassi, Éd Claudio}, year = {2004}, publisher = {Abcm}, booktitle = {Congresso Nacional de Engenharia Mecânica} }