Week 10 - Challenge 3 - Door Trim Lower with Engineering Features

REPORT:

Aim:

• Create the Door Trim.
• Create the Locators and the Heat Stakes for the Door Trim.

Software Used:CATIA V5.

Commands Used:

• Point,Line,Offset,Multiple Extract,Extrapolate,Trim,Edge Fillet,Boundary,Sweep,Spline,Multi-Selection Surface,Join,Intersection,Split,Sketch,Circle,Draft,Draft Analysis,Union Trim.

Procedure:

Class-A Surface:

• This is the given class-A surface of a Door Trim.

Tooling Axis:

• To Create the tooling axis,a point is plotted on the class-A surface.Using the Point-Direction method a line is created in the y-direction,This line is called Tooling Axis.

Draft Analysis:

• Draft Analysis is performed on the class-A surface with draft angle 3°.

Class-B Surface:

• To Create class-B surface,directly offset the class-A surface upto distance of 2.5mm.

• Due to direct offset of the class-A surface,some patches are missing on the offset surface.

  

• To create the missing patches, using multiple extract command extract the surface in contact with missing patchesand then extrapolate.Now trim the unwanted surface to form sharp edges.
• Using edge fillet provide the fillet for sharp edges to form class-B surface.

Class-C Surface:

• Class-C surface is created using boundary,sweep,extrapolate operations on the class-A surface.
• Then trim the unwanted surfaces to create class-C surface.

Join Class-A & Class-C Surface:

Final Plastic Component:

• Unhide the Class-A&C join surface and the class-B surface.

• Using intersection command,create an intersection between the class-A&C join surface and the class-B surface.

• Now split both the class-A&C and class-B surface separately with intersection.

• Join the split surface of class-A&C and class-B surface to create the plastic component of Door Trim.

Close Surface:

• Using close surface,a solid model of the Door Trim is created from the plastic component.

Draft Analysis:

• Draft Analysis is performed on the solid component of the door trim with draft angle 3°.

Locators:

• This is the sketch of a 4-way locator.

• Pad the given sketch.

• Provide draft of 0.5°.

• Chamfer the edges upto 3mm.

• Provide fillet of 0.3mm on the locator.

Heat Stakes:

• This is the sketch of the heat stake.

• Pad the given sketch.Make sure the heat stake is shorter than the locator.

• Provide draft of 0.5°.

• Provide fillet of 0.25mm on the locator.

Door Trim With Locators & Heat Stakes:

• Union Trim the Locators & Heat Stakes to form the Door Trim With Locators & Heat Stakes.

Draft Analysis:

• Draft Analysis is performed on the Door Trim With Locators & Heat Stakes with draft angle 0.45°.

Isometric View:

Front View:

Top View:

Side View:

Conclusion:

• Plastic Component and Solid Model Of the Door Trim is created.
• Locators & Heat Stakes are created.
• Draft Analysis is performed on the class-A,solid model of the Door Trim & Door Trim With Locators & Heat Stakes.