共查询到19条相似文献,搜索用时 62 毫秒
1.
2.
3.
综合电火花加工快速蚀除材料与电解加工溶解重铸层的优势,提出了在低电导率的NaNO3溶液中使用电极逐层往复式铣削加工微小方孔的电火花-电解复合加工方法,并研究了电解液浓度、电压和电容参数对微小方孔加工质量的影响。结果表明:电解液浓度与加工电压对微小方孔加工质量影响较大,电容影响相对较小。选用最优加工参数在100μm厚的321不锈钢片上加工微小方孔,得到的方孔加工质量好、侧壁表面无重铸层,且工具电极相对损耗仅0.05%。 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Micro electrochemical machining (ECM) using ultra short pulses with tens of nanosecond duration is presented. 0.1 M sulfuric acid was used as electrolyte and 3D micro structures were machined on stainless steel. To prevent taper, a disk-type electrode was introduced. Using the disk-type electrode, taper could be eliminated. To improve productivity, multiple electrodes were applied and multiple structures were machined simultaneously. Since the wear of tool electrode is negligible in ECM, micro wire can be used as tool electrode. Using a platinum wire electrode with 10 urn diameter, various 3D features were machined on stainless steel plate. 相似文献
14.
15.
为了提高钛合金表面的疏水性能,采用润湿理论模型与多物理场耦合仿真相结合的方法,建立接触角与掩膜电解加工工艺参数之间的直接映射关系,揭示微坑阵列掩膜电解加工对表面疏水性能的作用。建立接触角与微坑阵列几何尺寸间的表面疏水理论模型,对掩膜电解加工进行多物理场耦合仿真;理论模型与仿真结果相结合,获得了接触角与掩膜电解加工工艺参数之间的直接映射关系。此外,以表面接触角为因变量,以电解质质量分数、掩膜尺寸和电解电压为自变量,进行正交试验仿真和计算,获得了最佳工艺参数组合并进行试验验证。与仿真计算相比,试验测量得到的微坑阵列直径、间距、深度、表面接触角误差分别为2.49%、6.87%、7.40%、6.01%,从而表明该方法在未经低表面能材料修饰的情况下,成功制备接触角约为141°的微坑阵列疏水表面。 相似文献
16.
17.
18.