Week 9 - Attachment Feature Creation (Ribs & Screw Boss) - Challenge 1

Bosses are small cylindrical elements in a design. They are used for accepting screws or other fastening components (threaded inserts usually) for plastic component's

TOOLING AXIS :-

The Tooling Direction is basically the direction that the mold pulls a part. The mold is built in two separate pieces, basically. You have a Cavity side and you have the Core side. The Core pulls apart from the Cavity and that's the Dye line or the Tooling Direction.

DRAFT ANALYSIS:-

The Draft Analysis command enables you to detect if the part you drafted will be easily removed. This type of analysis is performed based on color ranges identifying zones on the analyzed element where the deviation from the draft direction at any point, corresponds to specified values.

• Before going to drat analysis go to customized view parameter >under mesh >check material and then click ok.
• Now for draft analyses go to insert » analysis » feature draft analysis.
• Use the compasss to define the draft direction.
• In the colour scale change the draft angle to 3 degree.
• The component changes to green in indication of passing draft angle.
• Use running point to check the angle on the component.

CLASS B SURFACE:-

• Extract the surfaces from the class A using multiple extract and untrim them.
• Use Extrapolate to make sure that all the untrims are properly intersected to trim and offset the surfaces to 2.5 mm to create the thickness.
• Trim the extra surfaces using trim command.
• Insert them into new geometrical set and name it with respective part names.

CLASS C SURFACE:-

• Extract the boundary from the class A surface using boundary command.
• Using disassemble tool to divide the boundary as the boundary contains domains.
• Use sweep command to produce c surface
• by using boundary and surface with respect to angle 3 degree or 93 degree

FINAL OUTPUT OF SURFACE CREATION IS

SOLID CONVERTION OF SURFACE BODY

B SIDE FEATURES CREATION

RIB CREATION:-

• Design Principle for Rib Creation

SCREW BOSS DESIGN:-

• Design Principle for Screw Boss Creation

DRAFT ANALYSIS:-

go to insert< analysis< draft analysis and follow usual procedure to do the analysis.
Align the compass and click on the surface and as expected the model is mostly in red color i.e. negative draft with respect to the axis. whenever draft analysis is mainly for find the designed part should be produceble or any difficulty will be faced in manufacturing plants

CONCLUSION:-

The Tooling axis and the SolidCAT part with B Side Features is created from the given Class A Surface and Draft Analysis is Performed.