• 本文也比较不同冲模圆弧半径对LDR 的改善，发现当冲头圆弧半径与冲模圆弧半径增加时，则极限引伸比将会增加。 This thesis also compared the influence of different tool radii on LDR. The LDR increased as the punch radius and die radius become larger. • 小曲率半径冲头增大了接触应力，大大缩短了 镀层的失效周次，而且能够使镀层失效机制由冲击磨损转变为内聚力剥落。 The impact body with a smaller radius increases the contacting stress, therefore the failure cycles is shortened and the failure mode can be changed from impact wear to cohesive detachment. • 采用本公司的专利技术— — 整体高定性冲头升降系统，针对冷锻机最大的毛病，冲头升降系统不稳定的问题进行设计，彻底解决该毛病。 Unique and patented technology of whole and stable punch lifting system resolves the problem of un-stability of the lifting system. • 红山谷精密模具配件公司专业生产各种精密模具配件，如顶针、司筒、导柱、导套、冲头、模仁、喷嘴、螺牙、连接器、辅助器、斜顶装置、锁模扣等。 Red Valley Precision Mould Components Co. , Ltd is a manufacture in China, specialized in the production of High Precision Tools. • 本文以钢制冲头对碳纤维积层平板进行落下冲击试验，纪录冲击力及应变履历，并以能量守恒观点，利用平板静态下压资料，对此冲击问题提出拟静态模拟方法。 A steel impactor was used in drop tests to impact composite laminated plates constructed using carbon-epoxy prepregs. The impact force and strain histories were recorded as well. 导套: guide sleeve | guide bushing • 如果有导叶套，也要分别装配到导叶上。 if there are sets of guide vanes but also were on the assembly to the guide vane. • 选择通用导套，保证零件上孔的位置精度。 Choiceing the general leads the wrap to Guarantee the hole of the components' position precision. • 柱塞应从导套里拉出。 Draw out the cylinder liner. • 拄塞在导套中咬住了。 The plunger is seized in its gui...
