Quantum sensing devices are typically comprised of many large pieces of laboratory equipment which in their current state have a limited number of industrial applications. However, utilising the benefits afforded by additive manufacturing (AM), an order-of-magnitude reduction in size, weight and power requirement was deemed plausible. The OPTAMOT project carried out by Added Scientific Ltd. in conjunction with the Physics departments at University of Nottingham and University of Sussex, has focussed on re-designing magneto-optical trap (MOT) assemblies for manufacture by laser-powder bed fusion. The resulting MOT performance characteristics and achieved reductions in size, weight and power will be presented.
Additive Manufacturing (AM) offers a number of benefits over conventional processes. However, in order for these benefits to be realised, further development and integration of suitable monitoring and closed loop control systems are needed. Laser Ultrasonic Testing (LUT) is an inspection technology which shows potential for in-situ monitoring of metallic AM processes. Non-contact measurements can be performed on curved surfaces and in difficult to reach areas, even at elevated temperatures. Interrogation of each build layer generates defect information which can be used to highlight processing errors and allow for real-time modification of processing parameters, enabling improved component quality and yield.
This study evaluates the use of laser-generated surface waves to detect artificially generated defects in titanium alloy (Ti- 6Al-4V) samples produced by laser-based Powder Bed Fusion. The trials undertaken utilise the latest LUT equipment, recently installed at Manufacturing Technology Centre which is capable of being controlled remotely. This will allow the system to optimise or adapt “on-the-fly”, simplifying the eventual integration of the system within an AM machine.
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