铜始极片预剥离技术的研究

Study on pre-stripping technology of copper initiator

针对铜始极片预剥离失败导致后续剥离无法进行的问题,运用材料力学理论对铜始极片与钛种板结合面的剪切力进行了分析。以钛板厚度和挠曲力的作用位置为变量设计了9种组合,并分别建立了三维模型,应用ANSYS Workbench软件进行了模拟仿真,对各组合的界面端剪应力及板结构的挠曲变形进行了比较分析,找出了所设变量对铜始极片预剥离阶段的影响,确定了有利于提高铜始极片剥离质量和效率且对钛种板损伤小的较优组合。研究结果表明:铜始极片界面端处剪应力达到最大值,解释了始极片开口原因;选择较小的钛板厚度,并使挠曲力作用位置靠近界面端则会更有利于始极片的预剥离。

Aiming at the problem that the pre-stripping of the copper pole piece failed to lead to subsequent peeling,the shear stress of copper starting sheet joint and titanium seed plate joint was analyzed by using the theory of material mechanics. According to the thickness of the titanium plate and flexural force,nine kinds of combinations were designed. The three-dimensional model was established for each combination,and simulated by using ANSYS Workbench software. By analyzing the interface shear stress and the plate structure deformation. Find out the influence of the set variables on the pre-delamination phase of the copper pole piece,determined the better combination that good for improve the quality and efficiency of copper stripping quality with less damage to the titanium starting plate. The results indicate that the shear stress reaches the maximum at the copper pro-plate interface,explaining the reason for the opening of the projectile. Choosing a smaller thickness of the titanium plate and placing the force in the deflecting near the interface will be more conducive to pre-peel.