孙文君,王善林,洪敏,等.铜与奥氏体不锈钢异种材料电子束焊接[J].精密成形工程,2019,11(5):55-62.
SUN Wen-jun,WANG Shan-lin,HONG Min,et al.Electron Beam Welding of Dissimilar Materials between Copper and Austenite Stainless Steel[J].Journal of Netshape Forming Engineering,2019,11(5):55-62. |
| 铜与奥氏体不锈钢异种材料电子束焊接 |
| Electron Beam Welding of Dissimilar Materials between Copper and Austenite Stainless Steel |
| 投稿时间：2019-07-19 修订日期：2019-09-10 |
| DOI：10.3969/j.issn.1674-6457.2019.05.008 |
| 中文关键词: 铜 奥氏体不锈钢 电子束焊接 组织演变 力学性能 |
| 英文关键词: copper austenitic stainless steel electron beam welding microstructural evolution mechanical properties |
| 基金项目:航空科学基金（2017ZE56010）；江西省杰出青年基金（2018ACB21016） |
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| 摘要点击次数: 2962 |
| 全文下载次数: 2020 |
| 中文摘要: |
| 目的 研究不同参数下铜钢电子束异种焊接以获得符合要求的接头质量。方法 以无氧高导热铜（OFHC）和奥氏体不锈钢（304）作为研究对象，控制扫描幅值、焊接速度等工艺参数，采用500 Hz真空电子束偏束"O"形扫描焊接的方式进行焊接。结果 在电子束偏钢侧0.2 mm，电子束流为17 mA，聚焦电流为501 mA，焊接速度为600 mm/min的参数下，添加半径为1 mm，频率为500 Hz的圆形扫描波得到了抗拉性能为310.9 MPa、硬度大于180 MPa的优质焊接接头。结论 不同参数下的接头宏观均出现焊缝上表面下陷缺陷，接头铜侧热影响区存在大量颗粒状、块状、条状的铜钢固溶体析出相，接头钢侧热影响区存在宽度随扫描波幅值减小而减小的黑色过渡带。 |
| 英文摘要: |
| The paper aims to study dissimilar welding of copper and steel electron beams to obtain high quality welded joints. With oxygen-free high thermal conductivity copper (OFHC) and austenitic stainless steel (304) as the research objects, the scanning amplitude and welding speed of the process parameters were controlled. The 500 Hz vacuum electron beam bias "O" scanning welding method was used for welding. Under the parameters of 0.2 mm electron beam bias steel side, 500 Hz circular scanning wave amplitude 1mm, electron beam current 17 mA, focusing current 501 mA and welding speed 600 mm/min, the high quality welded joint with tensile resistance of 310.9 MPa and hardness greater than 180 MPa was obtained. Under different parameters, there are subsidence defects on the upper surface of the weld. There are a large number of granular, massive and strip solid solution precipitates in the heat affected zone of the copper side of the joint, there is a black transition zone with the width of the heat-affected zone on the steel side of joints decreasing with the decrease of scanning wave amplitude. |
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