Aerospace component and method for producing an aerospace component

1. A method of forming an aerospace component, the method comprising:

forming a first subcomponent by an additive layer manufacturing (ALM) process, the first subcomponent having an inner surface defining an inner space;

performing a non-ALM machining process to modify a portion of the inner surface of the first subcomponent;

providing a first non-ALM produced subcomponent within the inner space, the first non-ALM produced subcomponent being slidably mounted within the inner space;

forming a second subcomponent by an ALM process, the second subcomponent being arranged to close the inner space to complete the component; and

forming an aerospace shock absorber or aerospace actuator from the first subcomponent, the first non-ALM produced subcomponent and the second subcomponent.

2. A method according to claim 1 , whereby prior to the step of forming the second subcomponent, the method includes forming a third subcomponent by an ALM process, the third subcomponent being coupled to another subcomponent of the aerospace component.

3. A method according to claim 1 , whereby prior to the step of forming the second subcomponent, the method includes providing a second non-ALM produced subcomponent having an inner surface arranged to define an inner space, and coupling the second non-ALM produced subcomponent to the first subcomponent.

4. A method according to claim 1 , whereby prior to the step of forming the second subcomponent, the method includes performing one or more further non-ALM machining processes to modify one or more portions of an inner or connecting surface of a subcomponent.

5. The method according to claim 1 , whereby the aerospace component comprises an aircraft assembly component.

6. The method according to claim 5 , whereby the aircraft assembly component comprises an aircraft landing gear component.

7. An aerospace component comprising:

a first subcomponent having an additive layer structure formed by an additive layer manufacturing (ALM) process the first subcomponent having an inner surface defining an inner space;

a first non-ALM produced subcomponent slidably mounted within the inner space;

a second subcomponent having an additive layer structure, the second subcomponent being arranged to close the inner space to complete the component,

wherein a portion of the inner surface has a relatively smooth surface profile in comparison to an outer surface profile of the additive layer structure of the first and/or second subcomponent; and

wherein the first subcomponent, the first non-ALM produced subcomponent and the second subcomponent form an aerospace shock absorber or aerospace actuator.

8. An aerospace component according to claim 7 , wherein the aerospace component comprises an aircraft assembly component.

9. An aerospace component according to claim 8 , wherein the aircraft assembly component comprises an aircraft landing gear component.

10. A method of forming an aerospace component, the method comprising:

forming a first subcomponent by an additive layer manufacturing (ALM) process, the first subcomponent having an inner surface defining an inner space;

performing a non-ALM machining process to modify a portion of the inner surface of the first subcomponent;

forming a second subcomponent by an ALM process, the second subcomponent being arranged to close the inner space to complete the component,

whereby prior to the step of forming the second subcomponent, the method includes providing a first non-ALM produced subcomponent within the inner space and whereby the first non-ALM produced subcomponent is slidably mounted within the inner space; and

forming an aerospace shock absorber or aerospace actuator from the first subcomponent, the first non-ALM produced subcomponent and the second subcomponent.