Week 9 - Attachment Feature Creation - Challenge 2

DOG HOUSE:

• Dog house is an engineering feature used in plastic trim design.
• Dog houses are used as supporting feature.
• Sometimes other engineering features like snaps; locators etc. are mounded on them to increase their strength.
• Dog houses are subjected to draft analysis to prevent breakage of the component during ejection from mould cavity.
• Dog house and other engineering components are built on B-surface

Tooling Axis :

• The direction in which the mold called the tooling axisor core and cavity opens is Tooling axis
• Considering the ejection from the cavity of the mold after manufactering the interior trim must have the nominal 3 degree draft angle. Hence the tooling axis is crested by considering this factor
• The white clour line is the tooling axis of this surface

Class A Surafce :

• Class surface are the one which will be visible to the customer
• It's the exterior of the parts
• It has a optimal asthetic shape and high surface quality

Draft Analysis :

• This type of analysis is performed based on colour ranges identifying zones on the analysed element where the deviation from the draft direction at any point.
• The Green colour denotes the draft angle is in the standards (3 degree).
• The Blue colour denoted its is below (3 degree).
• The Red colour denotes the surface is not producable.

For class A :

For Part :

For Dog House:

Class B Surface :

• Class B is the inner side of the Class a surface which will not be seen by the customer
• where it will faced in the side of core
• where the ejection will make there contact
• It contains the engineering aspects of a model.

Class C Surface :

• Surface that joins class-A and class-B surfaces is class-C surface.
• Which will determine the thickness.
• Class C is often specified for interior surfaces not readily visible.

Conclusion:

The report of “Drill Handle” with Attachment feature Creation (Ribs & Screw Boss), And the project Is Done.