Week - 5 - 2D meshing for Plastic components
Week - 5
2D meshing for Plastic components
Aim: To extract the manual midsurface of the given bottle cap, mesh the component using the given quality parameters and assign thickness.
OBJECTIVE :
The bottle Cap component is given with various thicknesses in threads, teeth, and ribs. Taking manual mid surface with different procedures and meshing the component.
Quality Criteria Value
Target/Average Length -1
Minimum Length - 0.5
Maximum Length - 3
Aspect -3
Warpage - 15
Skewness - 45
Jacobian - 0.7
Minimum Quad Angle - 45
Maximum Quad Angle - 135
Minimum Tria Angle - 30
Maximum Tria Angle - 120
Tria Percentage - 15
CAD Model 
Procedure:
Geometry clean up
Started with doing the geometry clean upand by fixing the errors, assigned target length for for the part.
Midsurfacing
Took the midsurface of the part using Offset and middle , middle multi option. and completed the midsurface using Extend option and the Faces > New options ro get the midsurface of some parts.
Performed the Transform copy option for the inner ribs with rotate uisng the COG points to get the midsurface.
Meshing
Performed the meshing by using Best Mesh from mesh generation tool.
Cleared the elements failing for quality criteria, using reconnstruct, fix quality , smooth options from Shell Mesh. Cleared trias using the split ,swap and join options from elements.
Set PID's according to Thickness
RESULT
The given bottle cap component was meshed as per required quality criteria, after having carried out topology cleanup and generated midsurfaces for each of its surfaces and thickness was assigned to each of them.
CONCLUSION
The bottle cap component has a varying thickness in threads, a different type of ribs, small hatch and varying faces the mid surface for this component done with a different option, taking it manually and mesh for this component with small elements size but they are fixed with reconstructing and smooth option and achieved with quality option.