CAJ | 학술논문

为实现铜箔微冲孔，以弹性体作为传力介质，采用试验方法研究弹性介质材料、厚度及驱动片厚度等参数对电磁辅助微冲孔的影响。结果表明，硅胶和聚氨酯橡胶适合于电磁辅助微冲孔，最佳厚度分别为3.0 mm和1.0 mm ；驱动片厚度对磁场渗透和运动速度有较大影响。板料厚度相同时，微孔直径越小冲孔越困难，需要的能量越大；板料厚度越薄，相同能量下可冲出直径越小的孔；通过合理控制工艺参数，电磁辅助成形技术可在20μm的铜箔上冲出直径500μm的微孔。
위실현동박미충공，이탄성체작위전력개질，채용시험방법연구탄성개질재료、후도급구동편후도등삼수대전자보조미충공적영향。결과표명，규효화취안지상효괄합우전자보조미충공，최가후도분별위3.0 mm화1.0 mm ；구동편후도대자장삼투화운동속도유교대영향。판료후도상동시，미공직경월소충공월곤난，수요적능량월대；판료후도월박，상동능량하가충출직경월소적공；통과합리공제공예삼수，전자보조성형기술가재20μm적동박상충출직경500μm적미공。
In order to realize the micro-piecing of brass foil , the effects of the material and thickness of elastic medium , the thick-ness of driver plate on electromagnetic assisted micro-piecing were investigated by the experiments with elastic body as force trans-mission medium . The results show that the silicone and the polyurethane rubber are suitable for the electromagnetic assisted mi-cro-piecing . The optimum thickness of the silicone is 3.0mm and the one of the polyurethane rubber is 1.0mm . The thickness of the driver plate has a significant effect on the penetration of the magnetic field and the movement velocity of the driver plate . With the same foil thickness ,it is more difficult to piece the smaller diameter hole because more energy is needed .With the decrease of the driver plate thickness , the smaller diameter hole can be punched at the same energy . Under the reasonable process parame-ters , the hole diameter of 500μm can be punched using the thickness of 20μm copper foil by the electromagnetic assisted micro-piecing process .