Week 8 - Challenge 4 - Bumper

NOTE: I have Attached the Report, Photos and CADpart in the Attachment

Week 8 - Challenge 2 - Bumper

AIM:

To Create the Bumper Design Plastic component through the given Class-A surface. Create the tooling axis for the given Class-A Surface by meeting the requirements of the draft angle and at the end perform the Draft analysis on the model. 

OBJECTIVE:

• Tree Structure
• Ensure Proper Tree Structure
• Geometrical sets should have a proper name based on the sketches present inside of it
• All the sketches should be created under the Geometrical set 
• Use the Close Surface feature to make a solid body from the surface. 
• Publications: Use the publication option and publish the below
  • Tooling Axis
  • Class A, B, and C surface
• Report
• A detailed report should be done explaining the draft analysis and the tooling axis creation. 
• An explanation should be given on the way of creating the tooling axis, particularly the Bisecting method. 

SOFTWARE USED : CATIA

INPUT:

CAD DATA is downloaded and Opened with CATIA.

TOOLING AXIS:

Tooling axis is defined as such all the featres of the part can be manufactured easily. so here we followed the below steps to create the tooling axis.

• Create a point between the corner most edges of the bumper

• Axis is created on the point
• Intersection is taken with class A and Axis

• Sketch is drawn on the intersection curves.
• Two lines are drawn at the outmost ends.
• Both the lines are bisected and a line is created at the middle.
• This is the tooling axis.

DRAFT ANALYSIS:

• Draft is done on the Class A surface. 
• Change it to material in customise view.
• Click the Draft analysis tool and click the surface and align the compass to tooling axis.
• 3 degree is the clearing angle
• So here is photo of cleared (Green) draft.

B SURFACE:

• B surface is created by using the given Class A surface
• Join all the faces except the fillets
• So we get separate 4 parts

• Offset to 3mm beneath the class A surface.
• All the 4 faces are offseted

•    Boundry is taken and the below shown edges are extrapolated 

    

• The extrapolated faces are trimmed
• The edges are given with fillets so that the 3mm is maintained
• Hence the B surface is formed.

C SURFACE:

• Class A boundry is taken.
• Boundry of the A is taken.
• Sweep is used to form the C surface.
• Be aware of the draft limit and make the sweep accordingly
• Join the segmented parts to get a whole C surface

FINAL PART

• Surface C and A is joined.
• Surface B is trimmed with C & A.

• Closed Body is created

DRAFT ANALYSIS:

• Draft is done on the Final Part. 
• Change it to material in customise view.
• Click the Draft analysis tool and click the surface and align the compass to tooling axis.
• 3 degree is the clearing angle
• So here is photo of cleared (Green) draft.

Here are the photos of Coin bumper

Color varient