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DFMPro for Assembly
DFMPro is an automated tool which supports several common assembly level checks which help address functional requirements, avoid rework and improve quality. Some of the common assembly checks include hole alignment, clearance measurement and interference detection among others.
Assembly considerations during design
Hole Alignment
Checking for proper alignment of holes at the design stage ensures that such problems are avoided during assembly. Hole alignment problems during assembly can lead to rework, loss of productivity, scrap, etc.
Assembly considerations during design
Clearance Checks
Clearance between specific components of an assembly is important in many types of products. Typically such clearance checks are very common in electromechanical assemblies. The clearance requirements may originate from a variety of sources - electrical, thermal, etc. Typical CAD systems provide generic clearance checks which need to be executed for specified clearance value on the complete assembly or on a specific pair of components. However, clearance requirements are typically more complex and expressed more easily in terms of rules.
Interference Checks
It is important to ensure that there is no interference condition which can prevent proper assembly of the product. Interference conditions due to design representation (like threaded areas) must be ignored.
Fastener Clearance
Ensuring adequate radial and axial clearance for fasteners is important to ensure ease of assembly and desired functional performance.
Contact materials
Certain materials exhibit degradation in the properties over time when in contact with certain other materials. These characteristics need to be accounted for when designing products with components in contact. This is crucial in ensuring that the product quality does not degrade over time.
Note: The guidelines and related parameters mentioned above are only indicative and may change depending material, process and applications.
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