Week 9 - Attachment Feature Creation - Challenge 2

Draft angle: The degree of taper of the side wall of the mold or the angle of clearance designed to aid the removal of a part from a mold.

Most of the parts have a draft angle of min 3, but while designing we follow the general thumb rule of 1-degree draft per 1-inch depth.

Draft angle is provided along the TOOLING AXIS.

Tooling Axis: It is the direction in which the core and cavity of the mold move for the removal of the component inside it.

Creation of Tooling Axis Using Bisecting Method:

1. First, inspect the given CLASS A surface. Use the join feature to check whether the surface has a continuous boundary or not.
2. Then check the direction in which the component can be easily molded without any complications.
3. Now take a plane and intersect the plane with the surface to get the curves.
4. Switch to the sketcher workbench and create lines along the curves that are tilted to the dummy axis we have created.
5. Bisect those lines to get a real TOOLING AXIS.
6. Check if there are any other surfaces and repeat the process to get a Tooling Axis.
7. Then bisect both axes to get Real Tooling AXIS.

Draft Analysis Using Tooling Axis:

• After generating the Tooling Axis of the given CLASS A surface, insert the feature draft analysis from the analysis toolbox.
• Drag the axis system and try to align along the Tooling Axis.
• We observe the Draft analysis box that contains the mode, display, direction, and information of the tooling axis.
• Using the Draft analysis box complete draft analysis is performed and different draft angles are coded in different colors.

For performing Draft analysis on the Class A Surface we have given a Draft angle of 2.9 degrees.

Draft Analysis On The Final Part:

• Created Dog Houses by considering design rules.
• Then assembled to the Door Trim using the Union Trim command.
• Draft analysis is performed on the final part by giving a Draft angle of 0.48 degrees as the minimum draft provided to Dog House is 0.48 degrees.
• We observe two color codes Red and Green in the final part.
• They change along with the change in the axis system.
• We should also perform a Draft analysis using the side core axis created normal to one of the faces of the Dog house.
• The side core axis is the direction in which the coring of the Dog house is cleared.