电火花沉积重熔碾轧修整试验

doi:10.3969/j.issn.1004-132X.2020.14.014

中国机械工程 ›› 2020, Vol. 31 ›› Issue (14): 1741-1746.DOI: 10.3969/j.issn.1004-132X.2020.14.014

电火花沉积重熔碾轧修整试验

徐安阳, 王晓明, 赵阳, 朱胜, 韩国峰

陆军装甲兵学院装备再制造技术国防科技重点实验室, 北京, 100072

收稿日期:2019-04-22 出版日期:2020-07-25 发布日期:2020-08-26
通讯作者: 王晓明(通信作者),男,1978年生,副研究员、博士。研究方向为轻合金表面防护、增材再制造、复合能场成形。E-mail:uwangm@126.com。
作者简介:徐安阳,男,1981年生,博士。研究方向为电火花加工、电火花沉积、表面工程、增材再制造等。发表论文10余篇。E-mail:xuanyang207@nuaa.edu.cn。
基金资助:
国家重点研发计划资助项目（2018YFB1105800）；中国博士后科学基金资助项目（2017M623445）；军内科研项目（2018ZB49）；东北大学航空动力装备振动及控制教育部重点实验室研究基金资助项目（VCAME201706）

Experiments on ESD-Heating Remelting, Rolling Dressing

XU Anyang, WANG Xiaoming, ZHAO Yang, ZHU Sheng, HAN Guofeng

National Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing, 100072

Received:2019-04-22 Online:2020-07-25 Published:2020-08-26

摘要/Abstract

摘要： 针对电火花沉积层存在的孔隙、微裂纹、表面组织疏松、连续性差及表面质量差等缺陷，提出了电火花沉积重熔碾轧修整加工方法。进行了所提方法与电火花沉积的对比试验，并对制备的沉积层进行了分析。结果表明：重熔碾轧修整时电极对沉积表面有较大的挤压碾轧作用，能有效消除沉积层内部孔隙、微裂纹、组织疏松等缺陷，细化沉积层晶粒结构，提高沉积层的连续性、完整性。电极对沉积层表面有显著的磨削涂覆作用，重熔碾轧修整表面粗糙度为电火花沉积表面粗糙度的76.3%，基本消除了表面孔洞、裂纹等缺陷，提高了沉积层表面质量。

关键词: 电火花沉积, 重熔, 碾轧, 铜合金, 沉积层, 表面粗糙度

Abstract: Aiming at the defects such as pores, microcracks, loose surface structure, poor continuity and poor surface quality in the ESD layer, a machining method of “ESD-remelting and rolling” was proposed herein. Taking the conventional ESD as a comparison,experiments were carried out using the new method. The deposited layers were analyzed. The results show that during the remelting and rolling processes, the electrode has a large extrusion and rolling effects on the deposition surfaces. Remelting and rolling dressing may effectively eliminate defects such as pores, microcracks and loose tissue inside the sediment layer. In addition, such process may refine the grain and improve the continuity and integrity of the layers. It is believed that the rotating electrode has a significant grinding coating effectiveness on the surfaces of the deposited layers. The defects such as surface micropores and cracks are basically eliminated, experimental results show that the roughness values of the remelting and rolling coating is 76.3% of the conventional ESD coating, which indicate the surface quality of the deposited layers is improved.

Key words: electro spark deposition(ESD), remelting, rolling, copper alloy, deposited layer, surface roughness

中图分类号:

徐安阳, 王晓明, 赵阳, 朱胜, 韩国峰. 电火花沉积重熔碾轧修整试验[J]. 中国机械工程, 2020, 31(14): 1741-1746.

XU Anyang, WANG Xiaoming, ZHAO Yang, ZHU Sheng, HAN Guofeng. Experiments on ESD-Heating Remelting, Rolling Dressing[J]. China Mechanical Engineering, 2020, 31(14): 1741-1746.

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http://www.cmemo.org.cn/CN/Y2020/V31/I14/1741

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电火花沉积重熔碾轧修整试验

Experiments on ESD-Heating Remelting, Rolling Dressing

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