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利用大于500公斤/厘米~2以上的超高压液体压力,对金属进行液压成型加工,是一項新工艺。最近我厂对形状較复杂的接头零件,采用超高液压成型工艺,进行了多次試驗,初步获得成功。其基本原理是:将坯料安装在高压試驗装置的液体內,对密封液体施以一定的压力,由于液体具有流动性和不可压縮性,因此产生超高压,迫使金属在凹模中产生塑性变形,使它成为具有一定几何形状的工件。一、試驗过程将工件的坯料(金属圓管,图1)經磷化处理后,安装在圓筒形的高压試驗装置(图2)凹模4內,两端分別以金属上密封活塞12和下密封活塞14,切入工件
The use of more than 500 kg / cm ~ 2 ultra-high pressure liquid pressure on the metal hydroforming is a new technology. Recently I plant more complex shape of the joint parts, the use of ultra-high hydraulic forming process, conducted several tests, the initial success. The basic principle is: the billet installed in the liquid high pressure test device, to seal the liquid to exert a certain pressure, due to liquid flow and incompressibility, resulting in ultra-high pressure, forcing the metal plastic deformation in the die , Making it a certain geometry of the workpiece. First, the test process The workpiece blank (metal pipe, Figure 1) after phosphating, installed in the cylindrical high-pressure test device (Figure 2) die 4, both ends of the metal seal piston 12 and Under seal the piston 14, into the workpiece