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江苏省自然科学基金(BE2010193)

作品数:2 被引量:25H指数:2
相关作者:曾永彬曲宁松于洽朱荻徐坤更多>>
相关机构:南京航空航天大学更多>>
发文基金:江苏省自然科学基金国家自然科学基金国防基础科研计划更多>>
相关领域:航空宇航科学技术金属学及工艺更多>>

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阳极振动往复运丝微细电解线切割试验研究被引量:7
2014年
电解加工产物的及时输运是微细电解线切割加工中亟待解决的问题。提出通过线电极往复运动和工件低频振动共同强化加工间隙内传质过程来提高微细电解线切割的切缝质量的方法;构建了线电极往复运丝、工件振动的微细电解线切割试验系统;采用正交试验方法,分析了线电极运丝幅值、运丝频率、工件振动幅值和振动频率4个因素对切缝平均宽度和切缝轮廓均匀性影响的主次和趋势,并筛选出了优化的线电极运丝和工件振动参数;采用优化参数加工出了结构清晰、完整的微梁结构。
于洽曾永彬徐坤曲宁松朱荻
关键词:微细电解线切割振动正交试验
Wire electrochemical machining with axial electrolyte flushing for titanium alloy被引量:19
2013年
Titanium and its alloys have found very wide application in aerospace due to their excellent characteristics although their processing is still a challenge. Electrochemical machining is an important issue in the fabrication of titanium and titanium alloys. Wire electrochemical machining (WECM) is mainly used for workpiece cutting under the condition of different thickness plates. It has a great advantage over wire electro-discharge machining, which is the absence of heat-affected zone around the cutting area. Moreover, the wire electrode in WECM could be used repetitively because it is not worn out. Thus, much attention has been paid to WECM. The effective way of removing electrolysis products is of importance to WECM. In this paper, the axial electrolyte flushing is presented to WECM for removing electrolysis products and renewing electrolyte. The Taguchi experiment is conducted to optimize the machining parameters, such as wire feedrate, machining voltage, electrolyte concentration, etc. Experimental results show that WECM with axial electrolyte flushing is a promising issue in the fabrication of titanium alloy (TC1). The feasibility of multi-wire electrochemical machining is also demonstrated to improve the machining productivity of WECM.
Qu NingsongFang XiaolongLi WeiZeng YongbinZhu Di
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