Machinability of Advanced Aerospace Materials 841436
Modern aircraft increasingly require the use of new and advanced high-strength lightweight materials to ensure that the performance criteria of the aircraft are met: under all flight conditions.
The introduction of these advanced materials may, however, escalate manufacturing costs because of potential difficulties in machining and assembly operations.
Consequently, it becomes essential to perform extensive tests to establish optimum machining/assembly methods for these materials to bring down manufacturing costs.
This paper presents in detail the test parameters, data evaluation techniques, results, recommendations and machinability characteristics for advanced aerospace materials – i.e., Kevlar, AF1410 steel, aluminum-lithium alloy and titanium powder metal – in comparison with those of more conventional materials – i.e., HP9-4-20 steel, aluminum 7075-T73 and titanium 6Al-4V.