Week 9 - Challenge 3 - Bumper

Class A Surface is

1. Visible surface and aesthetic look.
2. Surface with textures.
3. Surfaces provided by customer(OEM).
4. Don't have any features like(rib, snap, bosses, etc) on class A surface.
5. Class A surface is made from scanned data with different software like alias etc.
6. Surfaces which are having CURVATURE CONTINUITY IS CALLED class-A.

Class B surface is

1. Invisible Surfaces.
2. Surface mostly don't have textures.
3. Surface needs to be created according to the class-A surface.
4. Having all features(Rib,boss,snap etc) in B-side surface only.
5. Surfaces which is having TANGENT CONTINUITY IS CALLED class-B.

Class A Surface : Check the connectivity of the Class A Surface Ensure that there is no gap between the component, using join command. We can visually check it or by clicking boundary command. It has a boundaries outer. Therefore first check completed.

Below fig 1 shown the given A-class surface.

DRAFT ANALYSIS OF GIVEN CLASS A SURFACE -

MAIN TOOLING AXIS -

For the creation of the main tooling axis we find a Flat surface in our A surface and make a line reference to the surface with all dimensions on 0.

CLASS B SURFACE -

For making a Class B surface we have to take 3 mm offset with A surface and close the all open patches by extrapolation and trimming function the final B surface is shown below-

CLASS C SURFACE -

For making a class b surface we have to use the Sweep command with reference to the surface and the length is given 5 mm.

FINAL TRIMMED SURFACE - For this first, we have to join Class A and Class C and trim it with Class B.

FINAL TRIMMED SURFACE

Closed Surface Body:

Conclusion : The Bumper is created with consedering all Design Methodology.

Tree Strature:

INPUT&TOOLING AXIS

CLASS B SURFACE

CLASS C SURFACE

CLASS A&C

FINAL TRIM