Advanced Computer Aided Project Design, MEEG-422
About Unplaced Components
Unplaced components belong to an assembly without being assembled or packaged.
These components appear in the Model Tree, but not in the graphics window.
Unplaced components are represented by a distinct icon in the Model Tree. Unplaced
components can be constrained or packaged by selecting them from the model tree
for redefinition. Unplaced components can be included or excluded when creating the
Bill of Materials, and are not accounted for in mass properties calculations. Once a
component is constrained or packaged, it cannot be made unplaced again. When its
parent assembly is retrieved into memory, an unplaced component is also retrieved.
On unplaced components, you can perform actions that do not involve any
knowledge of either the placement of the component in the assembly, or the
geometry of the component. For instance, you can associate an unplaced component
with a layer, but you cannot create a feature on an unplaced component.
Note: When a component is declared to belong to an assembly by modifying its
relationship in PDM or Intralink, that component will be left unplaced in the assembly
until it is explicitly either constrained or packaged.
About Pro/PROCESS for ASSEMBLIES
Use Pro/PROCESS for ASSEMBLIES to create assembly process plans and
Specifically, you can use it to complete the following tasks:
1. Define the steps of the assembly fabrication process.
2. Create a manufacturing BOM for each step in the process.
3. Regroup components independent of the design assembly to model the fabrication
4. Assemble tools and fixtures unique to a process step without affecting the design
5. Perform time and cost estimates for the assembly fabrication.
6. Create detailed drawings of each step in the process.
7. Customize the display of each process step by defining multiple explode states
with jogged explode-offset lines and by assigning different colors and line fonts to
components based on their status in the step.
With Welding you can:
1. Create and modify simple and compound welds in an Assembly. Weld geometry
can be solid or light.
2. Prepare edges for welding and create weld notches.
3. Hide or display welds in an assembly.
4. Define parameters of the welding process.
5. Create assembly drawings with welding symbols.
6. Obtain both general and specific information about welds, including location,
mass, volume, and size.
7. Generate Pro/REPORT tables with rod and weld information
A typical Welding session may include the following steps:
1. Import the reference part into the welding environment by entering Assembly
mode and retrieving or creating an assembly.
2. Define the welding environment by defining welding rods, processes, and
3. Determine if you want to weld, prepare edges, or create weld notches, or a
combination of the three.
4. Define the type of weld, edge preparation, or notch to perform on the part or
5. Determine the family table configuration. The family table provides the
functionality to create the cut in either the generic or instances of the part and its
6. Determine if you want your weld or feature to contain solid or light geometry.
7. Define the edge preparation cut, notch, or weld dimensions.
8. Set any additional parameters or welding processes.
9. Detail your welding assembly with drawings of welded assemblies and annotate
10. Generate either a bill of materials (BOM) or Pro/REPORT tables with weld
parameters, or both.
About Assembly Mode Functionality
Just as you can combine features into parts, you can also combine parts into
Assembly mode in Pro/ENGINEER enables you to place component parts and
subassemblies together to form assemblies, as well as to design parts based on how
they should fit together. You can then modify, analyze, or reorient the resulting
Pro/ASSEMBLY allows you to work in Assembly mode and modifybut not
createskeleton models. Online Help documentation for Foundation Pro/ASSEMBLY
provides detailed information about basic Assembly functionality.
Pro/ENGINEER provides basic assembly tools, and various Pro/ENGINEER modules
give you additional functionality for assembly operations.
Pro/ASSEMBLY supports the design and management of large and complex
assemblies through the use of powerful tools such as simplified representations,
interchange assemblies, and the use of Top Down design procedures.
Simplified representations are variations of a model you can use to change the view
of a particular design, enabling you to control which members of an assembly
Pro/ENGINEER brings into session and displays. This lets you tailor your work
environment to include only the information of current interest to you. You can, for
example, temporarily remove a complicated subassembly from memory that is
unrelated to the portion of the assembly on which you need to work. You can also
substitute a complicated subassembly or part with a simpler part or envelope.
Using advanced performance tools, you can speed up the retrieval process and
general work performance of large assemblies using simplified representations.
Simplified representations also allow you to show a component in a symbolic state.
This means that no geometry is shown for a component. Instead, a symbol
represents placement of the component. Mass properties can be calculated using the
placement point of the components and actual mass properties of the part. You can
also create a user defined 3D symbol to represent the symbolic part.
External representations can be created without modifying the master assembly.
External simplified representations are created in separate specialized assembly files.
An interchange assembly is a special kind of assembly that you can create and then
use in a design assembly. An interchange assembly consists of models that are
related either by function or representation. You can create both functional
interchanges (to replace functionally equivalent components) and simplify
interchanges (to substitute components in a simplified representation) in the same
interchange assembly. Interchange assemblies, like family tables and layouts,
provide a powerful method of automatic replacement.
Online Help documentation for Advanced Pro/ASSEMBLY Extension provides detailed
information. Foundation users can use interchange assemblies; however, an
Advanced Pro/ASSEMBLY Extension license is required for creating them.
The skeleton model of the assembly is the framework of the assembly. A skeleton
model is a specialized component of an assembly that defines skeletal, space claim,
interface, and other physical properties of an assembly design that you can use to
define geometry of components. In addition, you can use skeleton models to perform
motion analysis on an assembly by creating placement references to the skeleton
model and then modifying the skeleton dimensions to imitate motion.
Skeleton models can be used to capture in a central location design criteria defined
in the subassembly or delivered from a higher-level assembly. Using skeleton models
in more than one assembly allows you to distribute design criteria associatively
throughout the product structure. When design criteria change, updating is
propagated to affected components. Skeleton models provide a clearly understood
hierarchy of driving design criteria, they provide an organized display, and they allow
improved performance. Skeleton models are the recommended mechanism for
controlling top-level design iterations, and you can use them to facilitate task
Skeletons are represented by a unique icon in the Model Tree because their
functional characteristics are significantly different from those of other components.
Skeleton models can be filtered out the BOM and drawing views and can be specially
handled during the creation and manipulation of simplified representations and
Shrinkwrap features. Skeleton models are placed before all other components with
solid geometry in the model tree. Reference scope control settings can be used to
restrict making assembly placement references to skeleton models only.
Skeleton models, like regular components, can be replaced by both family table
instances and other skeleton models. You can copy a part model component into a
new skeleton model, as long as the part model satisfies the skeleton model criteria.
You can generate a native skeleton model, based on a native part model, and have it
replace the part model in an assembly, with all references remapped to the new
skeleton model. This effectively allows a part to be designated as a native skeleton
model, through the use of a new model file.
Skeleton models can maintain their own family tables. This enhancement allows
assemblies to maintain different skeleton instances across a family table.
Although skeletons can be created only within an assembly, they can be retrieved,
operated upon, and saved as ordinary parts.
Foundation users can use and modify skeleton models; however, an Advanced
Pro/ASSEMBLY Extension license is required for creating them.
The optional Pro/NOTEBOOK module supports top-down assembly design with tools
that enable you to create hierarchically-linked assembly layouts.
Pro/PROCESS for ASSEMBLIES
The optional Pro/PROCESS for ASSEMBLIES module enables you to create a drawing
that illustrates the assembly process of the assembly. Assembly steps are efined
using the actual Pro/ENGINEER assembly. Each process step can be further described
with specific explode states, simplified representations, parameters and notes
assigned to each process step.