Can a machined part be substituted for a Casting or a Forging?
At times a machined part can be substituted for a casting or a forging, but usually requires engineering approval (further extending lead-time). Machining may not be capable of producing the complex geometry of a highly engineered cast component. Machining cannot yield parts with multiple direction grain flow as found in many forgings, giving the machined component lower strength and fatigue properties than the forged part.