A novel method of forming low density core metal parts by pressure bonding face sheets to a porous foam metal core and simultaneously densifying the core is disclosed. In particular, low density core aluminum and aluminum alloy parts can be formed according to the method of the invention. The method of forming low density core metal parts generally comprises the steps of providing a porous, foam metal core and simultaneously pressure bonding first and second solid metal face sheets directly to opposite sides of the core and densifying the core by applying heat and uniaxial forge pressure to the first and second face sheets and to the core for a predetermined period of time. The method of the invention can therefore produce LDC parts having a predetermined shape and density. Furthermore, the LDC parts are less subject to interfacial oxidation and delamination than conventional LDC parts made by brazing.