在工业厂房建筑中一般都设有防护栏杆,防护栏杆大多在现场制作,扁钢端头圆弧的切割质量很难达到一致。为改善工艺和保证质量,制作手动圆弧切割器,此切割器适用于切割非整圆的工件,其构造由座板、支腿、定位杆、旋转套杆、钢珠、半径调节杆、割嘴套 In the industrial plant buildings are generally equipped with protective railings, guard railings are mostly produced at the scene, the cutting quality of flat steel arc is difficult to achieve the same end. In order to improve the process and ensure the quality, a manual arc cutter is made. This cutter is suitable for cutting non-full circle workpieces. The cutter is composed of a seat plate, a leg, a positioning rod, a rotating sleeve rod, a steel ball, a radius adjusting rod, set