Study on High Voltage Electron Beam Welding Frame of TC4-DT

GAO Feng; NI Jiaqiang; GUAN Feng

doi:10.16080/j.issn1671-833x.2017.04.079

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Study on High Voltage Electron Beam Welding Frame of TC4-DT

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- Study on High Voltage Electron Beam Welding Frame of TC4-DT
- Aeronautical Manufacturing Technology Vol. 60, Issue 4, Pages: 79-82(2017)
- 作者机构：
  
  中航工业沈阳飞机工业（集团）有限公司,沈阳,110850
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2017.04.079
  CLC：
- Published：2017
- 稿件说明：
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高峰，倪家强，关峰. TC4-DT材料高压电子束焊接框工艺研究*[J]. 航空制造技术, 2017, 60(4): 79-82.

GAO Feng, NI Jiaqiang, GUAN Feng. Study on High Voltage Electron Beam Welding Frame of TC4-DT. Aeronautical Manufacturing Technology, 2017, 60(4): 79-82.
高峰，倪家强，关峰. TC4-DT材料高压电子束焊接框工艺研究*[J]. 航空制造技术, 2017, 60(4): 79-82. DOI： 10.16080/j.issn1671-833x.2017.04.079.

GAO Feng, NI Jiaqiang, GUAN Feng. Study on High Voltage Electron Beam Welding Frame of TC4-DT. Aeronautical Manufacturing Technology, 2017, 60(4): 79-82. DOI： 10.16080/j.issn1671-833x.2017.04.079.

摘要

对TC4-DT材料高压电子束框工艺进行了研究。采用高压电子束焊接技术来实现复杂结构、大厚度难熔金属的热工艺成形，并对工艺、微观形貌、力学性能及微观组织进行系统性的分析。试验结果表明：电子束所形成的焊缝较为平整，成形较窄，拉伸、冲击强度较高，抗拉性能强于母材，但冲击韧性有所下降；焊缝接头网篮组织结构中，焊缝组织不见明显晶界，保证了焊缝组织的连续，且晶粒交错细化。

Abstract

High voltage electron beam frame process of TC4-DT material is studied. High voltage electron beam welding technology is used to realize the hot forming process of refractory metal with complex structure and large thickness

and the process

microstructure

mechanical properties and microstructure are analyzed systematically. The experimental results show that the formation of the electron beam is relatively flat

the shape is narrow

the tensile and impact strength are higher

and the tensile strength is stronger than that of the base metal

but the impact toughness is decreased. Meanwhile

the weld joint microstructure of lamellar structure has no obvious boundaries

which ensure the continuity of weld microstructure

and grain refinement

staggered.

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Related Institution

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Aviation Key Laboratory of Science and Technology on Precision Manufacturing Technology, AVIC Beijing Precision Engineering Institute for Aircraft Industry

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