AIM

To create the B pillar model with the attachment features by following the given class A and the master section provided with it.

PROCEDURE

STEP 1

Import the given class A to the cata workbench

STEP 2

After inspecting the class A , fix a good tooling direction and make a tooling axis in reference with the class A.

STEP 3

Create a B surface parallel to the class A with the proper thickness with the offset command. Also in this project a flange is also created along with the B surface.

STEP 4

A C surface is created with the sweep command with respect to the Class A boundary following a 3 degree draft angle.

STEP 5

Now all the Class A, B and C surfaces are trimmed together to obtain a closed surface.

STEP 6

Now after switching into the part workbench, generate a solid body from the closed body.

STEP 7

By following the master section and taking reference from it by extracting necessary elements from the master section and following all the design rules , 4-way locator with a dog house is created on one side and by using symmetry command , it is mirrored on the other side also.

THEORY

4 WAY LOCATOR

4 way locators are used to arrest the movement along 2 axis

DOG HOUSE

Dog houses are used to prevent defects like shrinkage and breakages. Also, they act as a guide.

Design guidelines for Dog house

Dog House wall thickness at the intersection of the part wall ( c )should be 40% or less than the main wall stok ( T ).

Height of (B) should be between 3.0 - 6.0 mm.

STEP 8

Create ribs along the part by following the proper design rules and draft.

THEORY

RIBS

• Nominal wall thickness of the plastic component should be 3 mm.
• A deviation of ±30mm from the wall thickness is accepted.
• Ideal draft for a component is 3 degrees.
• Minimum 0.5 degree of draft is accepted in ribs.

STEP 9

After creating these attachments and providing them with proper draft and fillets, attach them on the main part body by boolean operations.

STEP 10

Run draft analysis on the part body with all the B side features attached. For checking the inside draft of the dog house , make a side core axis also . Run a draft analysis with respect to the side core axis for the dog house.

RESULT

• A final part body is created by joining the class B and C with the class A made in reference with class A .
• Created all the required B side features such as locators , dog house and ribs by following the design rules.
• Ran draft analysis on the component and the report has been created.