In this chapter you learn how to use more advanced features for modeling in the assembly environment, learn how to minimize the impact of file size for large assemblies, learn how to create weldments and assembly-level-only features, learn how to work more effectively in the assembly environment. | Assembly Modeling Parametric Assembly Modeling Assembly modeling is used to combine components to create a 3D parametric assembly model A component is either a part or a subassembly of parts Essential tool for a work group developing a product composed of multiple parts Relatively new (1990’s) Used extensively in automotive and aerospace industries Assembly Modeling Tools Assembly modeling tools are used to: Combine components to create assemblies Specify location and orientation of components within an assembly constraints Part/Assembly Modeling Similarities - 1 Part Modeling Assembly Modeling Tree Structure Features Part Components Assembly Base Feature Component Constraints Geometric and Dimensional Assembly Parent/Child Relationships between features between components Part/Assembly Modeling Similarities - 2 Part Modeling Assembly Modeling Editing Sketch, feature Part Parametric equations Local Global Documentation Part drawings Assembly drawings Instancing Are copies of a part definition Contain a reference to the part definition, plus positional information used to locate the part Do not significantly increase assembly file size (one definition, many positions) Are useful for standard parts Are referred to as occurrences in Inventor Part instances: Assembly Constraints Mate – positions selected faces so that their surface normals oppose one another, with faces coincident (or offset). Can also be used for lines and points Flush – positions selected faces flush with one another (surface normals in same direction), with faces aligned (or offset) Angle – positions planar faces at a specific angle Tangent – positions a curved surface tangent to another surface Insert – positions two cylindrical parts so that their axes are aligned; mate constraint also applied to two circular edges Mate - 1 Mate face/face Mate edge/edge Mate - 2 Mate point/point Flush face/face Tangent Tangent cylinder/face Angle Angle face/face Insert Degrees of Freedom A rigid body has six | Assembly Modeling Parametric Assembly Modeling Assembly modeling is used to combine components to create a 3D parametric assembly model A component is either a part or a subassembly of parts Essential tool for a work group developing a product composed of multiple parts Relatively new (1990’s) Used extensively in automotive and aerospace industries Assembly Modeling Tools Assembly modeling tools are used to: Combine components to create assemblies Specify location and orientation of components within an assembly constraints Part/Assembly Modeling Similarities - 1 Part Modeling Assembly Modeling Tree Structure Features Part Components Assembly Base Feature Component Constraints Geometric and Dimensional Assembly Parent/Child Relationships between features between components Part/Assembly Modeling Similarities - 2 Part Modeling Assembly Modeling Editing Sketch, feature Part Parametric equations Local Global Documentation Part drawings Assembly drawings Instancing Are copies of a .
