The porous structure and low density of foamed aluminum sheet make some traditional machining methods not suitable.Aluminum foam with low density (less than 0.6g/cm3) is not suitable for processing by vehicle, milling, planing, deppon and other machining means.This kind of low density aluminum foam material hole wall is very thin, turning tool, plane tool and other machine and props touch the hole wall, the hole wall is often broken in the weakest place, so that the entire machining surface of the hole structure was destroyed.Sawing is not on the aluminum foam surface machining, so it will not damage the bubble hole structure.
If you want to gain high precision, high quality of processing surface, can adopt the method of cutting and edm cutting, among them, the small size of the foam aluminum plate is suitable for electric spark cutting precision, large size of aluminum foam bulk only by cutting processing, can achieve high precision cutting, such as large size of the foam aluminum plate is through precise cutting processing.If sawing and flattening are carried out, higher machining accuracy can be obtained.
foam aluminum plate often contain some hard particles, such as sic particles, which require diamond cutting tools.The cut aluminum foam sheet, the bubble hole is exposed.
