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多束流電子束焊接對(duì)Ti6Al4V鈦合金薄板變形的影響
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北京航空航天大學(xué)機(jī)械工程及自動(dòng)化學(xué)院,北京航空航天大學(xué)機(jī)械工程及自動(dòng)化學(xué)院,北京航空航天大學(xué)機(jī)械工程及自動(dòng)化學(xué)院,北京航空航天大學(xué)機(jī)械工程及自動(dòng)化學(xué)院

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航空科學(xué)基金


Influence of multi-beam electron beam welding technique on the deformation of Ti6Al4V alloy sheet
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School of Mechanical Engineering and Automation,Beihang University,School of Mechanical Engineering and Automation,Beihang University,School of Mechanical Engineering and Automation,Beihang University,School of Mechanical Engineering and Automation,Beihang University

Fund Project:

Aeronautical Science Foundation of China

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    摘要:

    多束流電子束焊是一種能夠同時(shí)產(chǎn)生多個(gè)電子束流作為焊接熱源的電子束焊接新技術(shù)，能夠有效的減小焊接應(yīng)力和變形。為了減小Ti6Al4V鈦合金薄板焊接變形，本文提出了一種新型的多束流電子束焊接技術(shù)，除了熔化金屬的主束流外，還包括兩個(gè)對(duì)稱分布的輔助束流用來(lái)焊后加熱。分別用傳統(tǒng)電子束焊和多束流電子束焊對(duì)1 mm厚的Ti6Al4V鈦合金薄板進(jìn)行焊接試驗(yàn)，試驗(yàn)表明，通過(guò)調(diào)節(jié)兩個(gè)輔助束流的位置和能量分布，多束流電子束焊能夠有效減小鈦合金薄板的焊接變形。

    Abstract:

    Multi-beam electron beam welding (EBW) is a new technique that allows more than two electron beams running simultaneously for welding and it is considered a promising method to reduce welding stress and deformation. In order to reduce the deformation of Ti6Al4V alloy sheets, a novel multi-beam EBW method is proposed in this study, besides one main electron beam to melt metals, also including two additional electron beams to post-heat the weld. Experiments were conducted on Ti6Al4V alloy sheets using this multi-beam technique. Results show that compared with the conventional EBW, the multi-beam EBW can improve the welding thermal cycle and effectively reduce the welding deformation by adjusting the position and energy distribution of two additional electron beams.

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范霽康,張偉,齊鉑金,劉方軍.多束流電子束焊接對(duì)Ti6Al4V鈦合金薄板變形的影響[J].稀有金屬材料與工程,2017,46(9):2417~2422.[Fan Jikang, Zhang Wei, Qi Bojin, Liu Fangjun. Influence of multi-beam electron beam welding technique on the deformation of Ti6Al4V alloy sheet[J]. Rare Metal Materials and Engineering,2017,46(9):2417~2422.]
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  • 收稿日期:2015-09-28
  • 最后修改日期:2015-10-21
  • 錄用日期:2015-11-18
  • 在線發(fā)布日期: 2017-11-29
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