在船傍板上切割圆孔,如切割舷窗、通海附件孔等,以往都是用直割刀随中心进行手工操作的,切割质量差,割纹呈锯齿形,其峰谷间距有2毫米左右,造成应力集中,影响船体的强度。又因船傍切割时所处环境较差,劳动强度很高。 Cut round holes in the boat at the board, such as cutting portholes, sea accessories holes, etc., in the past are straight knife with the center for manual operation, poor cutting quality, cut serrated, the peak valley spacing of about 2 mm , Resulting in stress concentration, affecting the strength of the hull. And because of the boat where the environment is poor when cutting, labor intensity is high.