Week 8 - Challenge 4 - Bumper
Aim:
Create the Bumper Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.
Condition:
Thickness of the component = 3 mm
Draft angle = 3 deg
Sequence:
- Creation of Tooling Axis.
- Draft Analysis of Class A
- Creation of Class B and Class C surface.
- Creating a solid part out of surface modelling.
- Draft Analysis of final plastic component.
Input:
The following surface is given as the input for the component creation.
Input checking:
The given input has two boundaries with fully closed condition.
Draft Analysis CLASS A surface
Here, draft analysis is done with respect to 3 deg angle.
The given input has positive draft in all places.
Creation of Tooling Axis:
Where the given CLASS A surface walls are not inclined. So, Tooling axis is created with respect to enter or body by visual inspection.
The above shown violet Line is our tooling axis.
Creation of Class B:
The bumper has many curved surfaces. So, here direct offset use used to create the class B surface and done some patching work to complete the class B surface.
Class C surrface sweep
- For creating this surface, we have extracted the boundary of Class A using multi-extract and then converted to smooth curve.
- Now this smooth curve is swept along the draft direction with a 90deg perpendicular to CLASS A surface.
Class A + Class C
Class A + Class B + Class C
For this we have trimmed the Class B surface with Class C surface using trim feature.
Draft Analysis of closed surface
From the above show draft analysis, the final closed component has positive draft angle in inside and negative draft angle in outside.
It’s shows that the closed surface has no surface is less than 3 deg draft.
All the surfaces in body are applicable for mold opening without wear.
ISOMETRIC VIEW
FRONT VIEW
TOP VIEW
RIGHT SIDE VIEW
LEFT SIDE VIEW
