CHALLENGE REPORT

Week 8 Challenge 5

Tooling axis:

While working with the part, view the given class A surface from all the 3 given axes. Upon looking the class A, y-axis was found to be clearing the whole class A.

Create a new geoset. “SURFACE WORK”, under which we will be creating our B and C surface. Create a new geoset. “B SURFACE”.

B Surface

Offset the class A surface and change the colour to any darker shade to recognise the boundary, which are formed due to uneven fillets.

Observe the pattern of omission of the surfaces and create geoset.(s) according to it. In this case, there were missing surfaces mainly in the fillet regions of the speaker compartment and the pocket area.

SPEAKER COMPARTMENT.

While working with the irregularities in the speaker compartment, use multiple extract to extract all the surfaces which are part of the speaker compartment.

In separate multiple extracts, extract all the other surfaces next to other the missing fillet surface and the wall.

Create extrapolate by creating boundary around the missing surface and the bottom part of the walls. Trim them together with the speaker compartment.

POCKET SECTION:

Following the steps which were used to create speaker compartment, create the necessary multiple extracts to extrapolate and trim with each other.

To correct the other surfaces, use the multi-section surface as the surface was not trimmable.

To do this we require 2 profiles and 2 guide curves. To create 2^nd guide curve, we need to create a spline joining the 2 end points tangentially to their resp. surfaces in the direction of the surface propagation.

To create the final B surface, use the boundary and extrapolate to some distance, such that the A and C surfaces intersect each other. To check this, use intersect tool to check the connectivity.

Apply fillets wherever necessary.

C Surface.

To create a class C surface, we need to create a new geoset. “C SURFACE”. Use the sweep command. There are surfaces which are inclined parallel to the tooling axis or is inclined perpendicular to the tooling axis.

Before creating the C surface, we must activate the class A surface. When the edge is parallel to the tooling axis or is inclined towards it, then we should use the sub-option of sweep using draft direction.

We have to carefully select the edge which are actually perpendicular to the tooling axis. Then perform sweep using draft direction by giving the draft direction as the tooling axis.

The remaining surfaces which are either parallel or at any inclined angles are swept using the sub options of reference surface.

The angle given for the draft direction should be 3^o, whereas the angle given while using reference surface should be given as 90^o or 87^o depending on the orientation.

Create a new geoset. “A+C SURFACE” and then join both the class A and class C surfaces together.

The final component:

Create a new geoset. “FINAL COMPONENT”. Trim the A+C SURFACE with the final B SURFACE.

Obtain the draft analysis for the final component and then, go to part workbench and perform closed surface operation.

PLEASE FIND THE FOLLOWING FILES:

CATPart = CATPart.zip

Images = Screenshots.zip

Report = CHALLENGE REPORT.docx