A method of making an aircraft component is provided, wherein the method comprises the steps of: providing a mold (1) for the receipt of a material (3) from which the aircraft component is to be made providing the mold with said material providing an intensification tool (14) in spaced relationship to the mold and heating the material, tool and mold so that the tool expands and applies pressure to the material and so as to form the component and wherein the linear coefficient of thermal expansion of the tool in a first direction is matched to the coefficient of thermal expansion of the component in the first direction, and the coefficient of thermal expansion of the tool in a second direction is greater than the coefficient of thermal expansion of the component in the second direction, the tool being provided with at least one contacting surface for contacting the material and through which pressure is applied to the material, the expansion of the tool in the second direction causing the at least one contacting surface to contact, and exert pressure on, the material.