Component Assemblies define which components are part of a given system and how they are integrated together to serve a common purpose. For example, the subsystem could produce torque to create acceleration of a vehicle, or it could produce air flow to cool a heat exchanger. In general, assembly features support material-removal operations. Assembly features include chamfers, fillets, sweeps, revolves, extrudes, and holes. They also include the work features and sketches used to create them. There are three type of assembly. These are private assembly, public assembly and share assembly. 1- Private Assembly: which is specific to the application. Process workflow is one of the biggest reasons to use an assembly feature because the feature is normally manufactured into the components after they have been assembled. You need to create a hole that passes through the sides of components Brace and Channel.