Week 9 - Attachment Feature Creation - Challenge 1

RIB CREATION

OBJECTIVE:

We have create ribs on the coin holder by following all the design rules.And per forming the draft analysis on the final body.

And we have listed the rib creation rules below and followed the same.

• Thickness of the rib should be 40% of the basse wall thickness.
• Height should be less than or equal to 5 times of the rib thickness.
• Spacing between the two ribs is 3:1 height/width ratio maximum.
• Minimum thickness at the tip is greather than or equal to 0.75 mm
• Fillet radius 0.25 mm maximum
• Draft angle 0.5 degree minumum on each side.

Creation of Coin Holder Solid Part form Class A Surafce

Detailed Geometrial Sets followed to create the part is listed below.

TOOLING AIXS CREATION:

As all the surfaces are perpenducular to the each other we have extracted a base surface and and created a line normal to the surface is our tooling axis.

B SURFACE CCREATION:

From the class A surface all the surfaces arextracted, untrim them and extrapolated them with certain value.

then tim them together, and giving the fillet values according to the Class A surface.

After the fillets values we have achieved the Class B surface.

C surface Creation:

From the Class A Surface We have extracted the boundary,and sweep them along with surface reference.

Will get the class C surface.

Final Join:

First trim the class C surfcae with B surface then join it with class A surface..

From tha patr geometry Making the part to solid will give us the final Part body.

RIB CREATION:

At the rear side of our part we are goind to create the ribs with all the rib creation design rules.

Extracted the Base surface to create the ribs.

We need to create lines and extracted them to the vlue

Rib height is 5 times of hte base wall thickness.

5*2.5= 12.5 mm

Extrude the line with 12.5 mm along with the tooling axis.

Basic SKetch is Fully iso - constraint.

The distance betwee the two ribs is 3:1 ratio.

So THe height of the rib is 12.5 mm

Distance between the ribs is 12.5/3 - 4.8 mm ( minimum distance)

Thickened them

Thickness if the rib is 0.4 times of the base wall thickness

0.4*2.5 = 1 mm

We have thicknes them with 1 mm

Minimum drat angle is 0.5 degree

we have given with all tha faces

With Boolen operations we have joined them with the main part body

Then the fillet value is 0.25mm minimum.

Even that is provided.

Our design is even satisfying the route thickness value, and tip thickness is 0.78 mm which is greater than 0.75 mm

Our design is Satisfying all the design rule.

Final Draft analysis is carried out and the results are submitted.

Final part Body in Iso mertic View.

Note :

We have to make sure that while doing each and every operation should be carried out along with the tooling axis.