Method and apparatus of manufacturing a drum

摘要

An apparatus and method of manufacturing a drum (1) is disclosed, so as to prevent noise and vibration during driving the drum (1), which includes a first step of forming a cylindrical drum (1); a second step of reducing a diameter at both ends (1a) of the drum (1); a third step of forming beads (16) in a central part of the drum (1); and a fourth step of bending both edges (1a) of the drum (1).