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

钛合金在航空航天中的使用和成本不断增长和升级，对钛部件的成本效益制造施加了越来越大的压力。钛合金的近净成形技术目前正在开发中，其目的是构建钛零件，而不是将其从固体中加工出来。然而，大多数当前的方法在生产率方面受到一定限制，材料沉积速率通常在5 kg/hr左右。线性摩擦焊（LFW）是一种新型的固相焊接技术，是一种新兴的钛近净成形制造技术。LFW能够以50 kg/hr的有效材料沉积速率，以及出色的焊接质量和工艺可重复性，有可能成为该领域的一项改变游戏规则的技术。TiFab项目将开发和展示线性摩擦焊接（LFW）技术，用于近净形钛合金部件的成本效益制造，并将支持英国一级航空航天供应商CAV扩大其产品供应的雄心。

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..