Week 9 - Attachment Feature Creation - Challenge 2

DOG HOUSE & SCREW BOSS:

AIM: To create the screw boss and dog house in the coin console holder part as per the design guidelines and do a draft analysis on the component.

DRAFT ANALYSIS ON THE COMPONENT WITHOUT RIBS:

The given component is draft analysed with the main tooling axis .The draft angle for the component is 3 deg. TOOLING AXIS the axis is created by creating a point in the base surface and drawing line on the point,here we not use the bisecting method since the bin wall is perpendicular to the base it gives the same result as previous one. We can get the negative draft corrected by creating a side core axis in hole.

DOG HOUSE:

The dog house is used to avoid the sink mark in the thick surface.To increase the height of the screw boss it is not recommended to increase the height of screw boss alone by creating the dog house and mounting the screw boss on it to get required height. It also provides the necessary strength to the screw boss. The dog house should meet the requirements as depicted in the below image .It should follow the design rules guidelines.The ribs used in the screw boss also follow the design guidelines.

SCREW BOSS:

The screw boss is used to hold the screw which attaches the two component where the connector should not be visible.The screw boss should meet the requirements as depicted in the below image .It should follow the design rules guidelines.The ribs used in the screw boss also follow the design guidelines.

The dog house and screw boss should be provided with thickness feature to make them as solid,the necessary fillets also provided.The image shows the dog house and screw boss as solid feature.

PART BODY :

The screw boss and dog house is assembled to the coin holder part and make them as solid.Every part in the solid is draft analysed to make the component as manufacturable. The screw boss in component is supported by the ribs at its circular surface,the number of ribs for supporting is as per the requirements.

DRAFT ANALYSIS OF DOG HOUSE:

The component is draft analysed along the tooling axis.Thickness of the c surface in the dog house to be 40 % of wall thickness of the component.make sure all the surface is drafted in the component with desired draft angle,Initially the draft analysis along the main tooling axis.The outer surface of the dog house is drafted along the main tooling axis as pulling direction.The draft angle recommended for the dog house is 1.5 deg

Thickness of the c surface in the dog house to be 40 % of wall thickness of the component.make sure the surface in the C section is drafted desired draft angle, the draft analysis is done along the side core axis since all surface can't be analysed in a single tooling axis.The inside wall surface of the dog house is drafted along the side core axis as pulling direction.The draft angle recommended for the dog house is 1.5 deg.The component is draft analysed along the side core axis.

DRAFT ANALYSIS OF SCREW BOSS:

The draft anakysis is done on the screw boss,the recommended draft angle is 0.5 deg.The draft analysis is done along the main toolinng axis.