This research was use aluminum 6061 with 150 mm length, 50 mm wide, and 10 mm thick. The probe was made from EMS 45 simple design. Three variations used of feedrate speed is 10 mm/min, 15 mm/min, and 30 mm/min. Spindle rotation constantly set 2000 rpm, the heat generated was recorded. Corner-Butt (C-B)joint determined, the lowest heat generated from 2200C-3200C and the tensile test was60 MPa. The highest tensile testwas 163 MPa, achieved by Corner-butt 45 (C-B 45) joint on 10 mm/min feedrate speed. It was verified by the heat temperature from 3000C-4200C and clarified by its micro and macrostructure.