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柔性摩擦辅助电铸镍钴合金壁厚均匀性试验研究
Study on Uniformity of Nickel-cobalt Alloy Coatings Fabricated by Flexible Friction-assisted Electroforming Technology
【摘要】 基于柔性摩擦辅助电铸技术,设计了一种分流隔断结构以控制硬质粒子的沉积,有效缓解了硬质粒子在电铸过程中的底部聚集问题,通过工艺试验进一步分析搅拌速率、柔性辅助孔隙密度对镍钴合金铸层厚度分布特性的影响。试验结果表明,调控搅拌速率和柔性辅助孔隙密度对改善电铸层均匀性有显著影响,当柔性支撑的孔隙密度为20 PPI、搅拌速率为1 500 r/min时,电铸层的厚度均匀性最佳,可达到91.4%。
【Abstract】 Based on the flexible friction-assisted electroforming technology,a flow-division barrier structure was designed to control the deposition of microbeads,which effectively alleviated the issue of bottom aggregation during the electroforming process. Meanwhile,the effect of agitation rate and flexible-assist porosity on the thickness distribution characteristics of nickel-cobalt alloy coatings were further analyzed through process experiments. The result indicated that the agitation rate and flexibleassist porosity significantly influenced the uniformity of the electroformed layer. When the flexibleassist porosity was set to 20 PPI and the agitation rate reached 1 500 r/min,the optimal thickness uniformity of the electroformed layer was achieved,reaching 91.4%.
【Key words】 electroforming; nickel-cobalt alloy; friction-assisted; uniformity;
- 【文献出处】 电加工与模具 ,Electromachining & Mould , 编辑部邮箱 ,2025年05期
- 【分类号】TQ153.4
- 【下载频次】12