由于细长轴本身的刚性差,工件装夹后易产生挠度。所以用单柱或单珠式滚压工具对细长轴外圆滚压时,难以保证加工顺利进行。我们改用了三点式的滚压工具后(附图),工件外径的最终尺寸精度稳定为IT7级,表面粗糙度R_a为0.16～0.32微米。取得了满意的效果。三个直径为6毫米,表面粗糙度R_a为0.04～0.08微米的YG6硬质合金滚柱8,安装在滚柱保持架12的长槽中,并 Due to the poor rigidity of the slender shaft itself, the workpiece is easy to deflect after being clamped. So with single-column or single-bead rolling tool rolling on the long axis of the outer circle, it is difficult to ensure smooth processing. When we switched to the three-point rolling tool (with photos), the final dimensional accuracy of the workpiece OD was stable to IT7 and the surface roughness R_a was 0.16 to 0.32 μm. Achieved satisfactory results. Three YG6 cemented carbide rollers 8 having a diameter of 6 mm and a surface roughness R a of 0.04 to 0.08 μm are mounted in the long grooves of the roller holder 12 and