Abstract: Laser Forming (LF) is a rapid, non-contact process developed in the late twentieth century for the shaping of metallic materials. Due to the flexibility of the process, LF can be used for numerous industrial applications from both 2D and 3D forming of complete serviceable parts, to distortion removal and rapid prototyping. While LF does compete with traditional forming and shaping methods in some areas, it is the forming of Fibre Metal Laminates (FMLs) where LF could offer a unique advantage over conventional methods. It is expected that this process will have advantages over autoclave methods in terms of processing speed, geometry flexibility, as well as economical costs. In this investigation the Temperature Gradient Mechanism (TGM) is used to form 2D bends in flat sheet GLARE based FMLs. The main area of interest is the effect that FML parameters have on the LF process, such as lay-up, fibre orientation, aluminium and composite thickness. Also of interest will be the effects of laser parameters and material effects on the process. The low power Nd:YAG laser system used here is equipped with high speed galvanometer driven mirrors allowing high traverse velocities and accurate control of the beam when compared with x-y tables. The work presented here is an in-depth investigation into the various factors that affect LF of FMLs. These factors include: control of thermal effects on the composite material, effect of fibre orientation, effects of lay-up strategy, and comparisons with thin section Al2024-T3.
LOW POWER LASER FORMING OF GLASS FIBRE BASED FIBRE METAL LAMINATES
Laser Group at Liverpool > LOW POWER LASER FORMING OF GLASS FIBRE BASED FIBRE METAL LAMINATES