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山东大学 力学与机电装备联合工程技术研究中心, 山东 威海 264209
[ "刘勇(1982-), 男, 山东日照人, 博士, 副教授, 硕士生导师, 2011年于南京航空航天大学获得博士学位, 主要从事精密、微细特种加工方面的研究。E-mail: rzliuyong@163.com" ]
[ "魏志远(1994-), 男, 内蒙古锡林浩特人, 硕士研究生, 2016年于山东大学获得学士学位, 主要研究方向为精密、微细电解电火花加工技术。E-mail:18369189101@163.com" ]
收稿日期:2017-11-23,
录用日期:2018-1-20,
纸质出版日期:2018-07-25
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刘勇, 魏志远, 邓世辉, 等. 高质量玻璃微孔电化学放电加工模型及试验[J]. 光学 精密工程, 2018,26(7):1653-1660.
Yong LIU, Zhi-yuan WEI, Shi-hui DENG, et al. Electrochemical discharge machining of glass micro-holes with high-quality[J]. Optics and precision engineering, 2018, 26(7): 1653-1660.
刘勇, 魏志远, 邓世辉, 等. 高质量玻璃微孔电化学放电加工模型及试验[J]. 光学 精密工程, 2018,26(7):1653-1660. DOI: 10.3788/OPE.20182607.1653.
Yong LIU, Zhi-yuan WEI, Shi-hui DENG, et al. Electrochemical discharge machining of glass micro-holes with high-quality[J]. Optics and precision engineering, 2018, 26(7): 1653-1660. DOI: 10.3788/OPE.20182607.1653.
超白玻璃是一种超透明低铁玻璃,因其具有优越的物理、光学性能,而广泛应用于精密电子、高档汽车及太阳能光伏发电领域。由于其本身的硬脆特性,玻璃微孔的出口极易破损,为提高玻璃微孔的加工定域性,降低微孔出口破损的可能性,对微细电化学放电钻削加工工艺进行了研究与优化。首先,根据电化学放电原理,探讨了气膜的形成和材料去除机理,分析了放电能量对玻璃微孔加工工艺的影响,建立了单位时间电化学放电加工能量控制模型;其次,试验分析了电压幅值、占空比、脉冲频率、进给速度等主要参数对微孔入口直径和出口质量的影响;最后,通过优化后的加工参数在厚度为300
μ
m的超白玻璃试件上,成功加工得到入口直径为172
μ
m、出口直径为167
μ
m的3×3微孔阵列结构,出口无破损现象。实验结果表明,基于脉冲能量控制的微细电化学放电钻削工艺在玻璃微孔加工方面很有潜力。
Ultra-white glass is a kind of transparent low-iron glass. Owing to its excellent physical and optical properties
it is widely used in many fields such as precision electronics
luxury automobiles
and solar photovoltaic power generation. Because of its hard and brittle characteristics
the outlets of glass micro-holes are easily damaged. In order to improve the machining localization of glass micro-holes and reduce the possibility of micro-hole outlet damage
the micro electrochemical discharge drilling process was studied and optimized. Firstly
according to the principle of electrochemical discharge
the film forming mechanism and the material removal mechanism were discussed
the influence of discharge energy on the micro-holes machining technology of glass was analyzed
and an energy control model of electrochemical discharge was established. Secondly
according to the experiment
the influence of pulse voltage
frequency
and feed rate on the inlet diameter and outlet quality of the micro-holes was analyzed. Finally
the optimized parameters were chosen to fabricate a 3×3 high quality glass micro holes array with an inlet diameter of 172
μ
m and an outlet diameter of 167
μ
m on an ultra-white glass workpiece with a thickness of 300
μ
m; the outlets exhibited no signs of damage. The experimental results show that under the control of the discharge energy
micro electrochemical discharge drilling technology has great potential in glass micro-hole machining.
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