Lubis, Sobron Yamin, Sofyan Djamil, and Yehezkiel Kurniawan Zebua. 2020. “EFFECT OF CUTTING SPEED IN THE TURNING PROCESS OF AISI 1045 STEEL ON CUTTING FORCE AND BUILT-UP EDGE (BUE) CHARACTERISTICS OF CARBIDE CUTTING TOOL”. SINERGI 24 (3). Jakarta, Indonesia:171-76. https://doi.org/10.22441/sinergi.2020.3.001.