Innovative Linear Friction Welding technology for Near Net Shape manufacture of advanced Ti aerospace components

钛(钛)合金在航空航天中的使用和成本持续增长和攀升，给钛零件的成本效益制造带来了越来越大的压力。钛合金的近净成形技术目前正在开发中，其目标是制造钛零件，而不是将其加工成固体。然而，目前的大多数方法在生产率方面都有一定的限制，材料沉积速度通常在5公斤/小时左右。线性摩擦焊接(LFW)是一种创新的固相焊接技术，是一种新兴的钛近净成形制造技术。LFW的有效材料沉积速度为50公斤/小时，再加上出色的焊接质量和工艺重复性，有可能成为该领域一项改变游戏规则的技术。TiFab项目将开发和演示线性摩擦焊接(LFW)技术，以经济高效地制造近净形状钛合金部件，并将支持英国一级航空供应商CAV扩大产品供应的雄心。

The use and cost of Titanium (Ti) alloys in Aerospace continues to grow and escalate, putting ever more pressure on cost-effective manufacturing of parts in Ti. Near net shape forming technologies for Ti alloys are currently under development with the aim of building Ti parts rather than machining them out of solid. Most current approaches however are somewhat limited in terms of productivity, with material deposition rates of around 5kg/hr being common. Linear Friction Welding (LFW) is an innovative solid phase welding technology that is emerging as a new enabling technology for Ti near net shape manufacture. Capable of effective material deposition rates of 50kg/hr, together with excellent weld quality and process repeatability, LFW has the potential to be a game changing technology in this field. The TiFab project will develop and demonstrate Linear Friction Welding (LFW) technology for the cost effective manufacture of near net shape Ti alloy components and will support the ambitions of CAV, a UK tier 1 aerospace supplier, to grow their product offering..