TY - CONF T1 - Object shaping with a sonotrode T2 - 25th symposium on Free Form Fabrication Y1 - 2014 A1 - Tilli, J. A1 - G Fantoni A1 - Currenti, S. A1 - Razionale, A. V. KW - Robotics JF - 25th symposium on Free Form Fabrication ER -