Week 9 - Project - Master Section Development

AIM:-

To design a B pillar with the given master section to follow the design criteria and thickness and thereby develop a close volume part.

INTRODUCTION:-

The vertical roof support structure is located between the front and rear doors of a typical vehicle. It corresponds with the A-pillar located on either side of the windshield at the front of the car and the C pillar which sits on either side of the rear window on a typical sedan. On SUVs, minivans, and wagons with extended cargo areas, the C-pillar is the vertical structure behind the rear door while the vertical supports at the rear of the vehicle are called D pillars.

CONSTRUCTION:-

• First, improve the surface of the B pillar.

• Then create the tooling axis of the B pillar.

• Then create the Class-B surface by offsetting the Class A surface.

Creation of flange

• To create a flange on the Class-A surface first the edge is extracted and the boundary is extracted.

• Then create the sweep by considering the master section.

• Then extrapolate and offset the flange.

• Finally, trim the Class-A surface and flange together.

• Similarly, do for Flange 2 and give the fillet value.

• Bellow is the image of Class-A and Class-B surface with flange.

Creation of Class C surface

• After the Class-B surface is generated, the Class-C surface has to be developed in the Class-A surface using the sweep command without any generic change in Class-A surface with a minimum draft angle of 3 degrees concerning the tooling axis.

• After creating all the sweep trim all the surfaces together.

• Finally, trim all Class-A Class-B and Class-C surfaces.

• Then check whether any gap is left with the help of the join command.

• Creating final close volume and converting it into a solid body.

Creating the B side feature by following the master section

Dog house

• To create a dog house first create the sketch and sweep it taking an angle of 0.5 degrees.

• Then trim both the surface together.

• After trimming the surface thick the surface.

• Then split all the unwanted surfaces.

• To avoid the sink mark in the Class A surface we have to remove some parts from the lower doghouse.

• Then finally split the surface.

• Then give all the fillet value to create the dog house.

4-way locator

• To create a 4-way locator first create the sketch on the dog house.

• Then pad the sketch by taking the reference as tooling axis.

• Then assign the draft direction and draft angle as 0.5 degrees.

• Finally, give all the chamfer and fillet values of the 4-way locator.

• Then symittery the Dog house and 4-way locator to the other side.

Ribs

• First sketch the line to create the ribs.

• Then pad the line taking reference as tooling axis.

• Then offset the B pillar and split it with the rib.

• Then finally give the draft value of ribs.

• Then assign the fillet to the ribs.

• Do the same for other side ribs.

DRAFT ANALYSIS:-

• The draft analysis of the B pillar

• The draft analysis of dog house

Draft analysis from main tooling axis

Draft analysis from side core or lifter tooling axis

• Draft analysis of 4-way locator

• Draft analysis of Ribs

Multi-view of B pillar master section