I have experience in this area having worked for a machine tool builder here in the UK who specialised in 5 axis machines for areospace applications (sadly no more - went to the wall in Nov 2002 as a result of you-know-what). Our largest machine was for spar box milling and was a twin spindle jobbie having a machining area of 15 metres by 150 metres. Is that big enough?
Talk to the likes of Henri Liné, Forest Liné, Uni-Sign and Dorries Scharmann for your requirements. Be aware that that swarf removal will be one of you biggest headaches, as will be controlling thermal expansion. |