摘要
镍钛合金导丝是介入医疗必需的器械,具有尺寸小、需求量大、加工难度高等特点。为了解决医用镍钛合金导丝引导致加工难题,提出医用镍钛合金导丝导引段电解加工方法,并开展加工试验。根据冲液方式,采用对比试验比较整圆阴极与半圆阴极的加工效果,选取半圆阴极作为工具阴极。通过控制变量分析各个因素对医用镍钛合金导丝电解加工的影响,包括电压、占空比、脉冲频率。试验结果表明,适当增大电压可以改善医用镍钛合金导丝电解加工表面质量,提高脉冲频率、降低占空比可以提高医用镍钛合金导丝电解加工精度。最佳加工参数为电压40 V、占空比0.4、脉冲频率10 000 Hz,可以实现不同直径医用镍钛合金导丝的电解加工。
The nickel titanium alloy guide wire is an essential instrument for interventional medical treatment,characterized by small size,high demand,and high processing difficulty.In order to solve the problem of machining medical nickel titanium alloy guide wire,the electrochemical machining method for the guide section of medical nickel titanium alloy guide wire was proposed,and the machining experiment was carried out.According to the flushing method,the comparative experiment was conducted to compare the processing effects of the full circle cathode and the semi-circular cathode,and the semi-circular cathode was selected as the tool cathode.The effects of various factors,including voltage,duty cycle,and pulse frequency,on the electrochemical machining of medical nickel titanium alloy guide wire were analyzed by controlling variables.The experimental result shows that increasing the voltage appropriately can improve the surface quality of the electrochemical machining of medical nickel titanium alloy guide wire,and increasing the pulse frequency and reducing the duty cycle can improve the accuracy of the electrochemical machining of medical nickel titanium alloy guide wire.The optimal machining parameters are voltage of 40 V,duty cycle of 0.4,and pulse frequency of 10000 Hz,which can achieve the electrochemical machining of medical nickel titanium alloy guide wires with different diameters.
作者
陈俊辉
陈天铭
何斌
Chen Junhui;Chen Tianming;He Bin
出处
《装备机械》
2025年第2期39-44,共6页
The Magazine on Equipment Machinery
基金
江苏省高等学校大学生创新创业训练计划重点项目(编号:202311463002Z)。
关键词
镍钛合金
导丝
电解加工
试验
Nickel Titanium Alloy
Guide Wire
Electrochemical Machining
Experiment
