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<p>This investigation presents the results obtained as part of a General Support Technology Programme aiming to develop and qualify a linear friction welding (LFW) based manufacturing route for the fabrication of a propellant management device. Using representative flat-plate coupons from Ti-6Al-4&#xa0;V, a series of welding trials was undertaken to determine a suitable parameter combination and assess the mechanical and microstructural properties of the welds. Approaches for radiography and phased array ultrasonic inspection were also validated. The weld properties reported met the acceptance criteria defined for this application. A full-scale technology demonstrator was designed and manufactured enabling to work towards Technology Readiness Level 6. A Life Cycle Analysis demonstrated that the alternative LFW manufacturing route developed in this project has the potential for reducing the cost of manufacturing and the associated environmental impact.</p>

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Linear friction welding for manufacturing of propellant management device for satellites

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Pedro de Sousa Santos,
  • Graeme Yorwarth,
  • Kevin Hayes,
  • Deborah Neumann De la Cruz,
  • João Gandra,
  • Andrew Clark,
  • Kate Franklin

摘要

This investigation presents the results obtained as part of a General Support Technology Programme aiming to develop and qualify a linear friction welding (LFW) based manufacturing route for the fabrication of a propellant management device. Using representative flat-plate coupons from Ti-6Al-4 V, a series of welding trials was undertaken to determine a suitable parameter combination and assess the mechanical and microstructural properties of the welds. Approaches for radiography and phased array ultrasonic inspection were also validated. The weld properties reported met the acceptance criteria defined for this application. A full-scale technology demonstrator was designed and manufactured enabling to work towards Technology Readiness Level 6. A Life Cycle Analysis demonstrated that the alternative LFW manufacturing route developed in this project has the potential for reducing the cost of manufacturing and the associated environmental impact.