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针对壁厚为0．01mm～0.1mm的超薄壁金属圆筒成形加工的要求，研制了一台有微机控制功能的精密成形试验机，使冲头与凹模在加工过程中的对中精度达到1μm。利用这台试验机，对初始壁厚为0．3mm的黄铜和纯铝筒进行了一系列变薄拉延加工试验，加工出内径为15mm，壁厚为0．015mm～0．08mm，长度为30mm的一系列超薄壁金属圆筒，黄铜筒的壁厚达到0.015mm。初步检测表明，成形后的超薄壁筒壁厚偏差小于2μm，内径尺寸精度与冲头的加工精度相同，表面粗糙度R_a为0．057μm。
Aimed at the requirements of forming thin-walled metal cylinder with wall thickness from 0.01mm to 0.1mm, a precision forming test machine with microcomputer control function was developed to make the centering accuracy between punch and die in the process Reaching 1 μm. Using this testing machine, a series of thinning drawing experiments were carried out on the brass and the pure aluminum tube with an initial wall thickness of 0.3 mm, and the inner diameter of 15 mm and the wall thickness of 0.015 mm to 0.08 mm were obtained. The length A series of 30mm thin-walled metal cylinder, brass tube wall thickness of 0.015mm. Preliminary tests show that the wall thickness deviation of the thin-walled tube after forming is less than 2μm, the precision of the inner diameter is the same as that of the punch, and the surface roughness R_a is 0.057μm.