Week 9 - Attachment Feature Creation - Challenge 1

DESIGN RULES FOR RIB CREATION:-

THICKNESS OS THE COMPONENT - 2.5mm

1) Minimum thickness at the tip - 0.75mm , here 0.786mm - satisfy the rule

2) Draft angle - 0.5°Min - 3°, here 0.5mm - satisfy the rule (Ideal draft angle -1.5°)

3) Distance beetween the two ribs - 2t (Min.) = 2*2.5 = 5 , satisfy the rule

4) Optimum radius - 0.25mm, satisfy the rule (Max. 0.5 - For high thickness component).

5) Height of the rib - Max. 5t = 5* 2.5 = 12.5, , satisfy the rule

6) Rib root thickness - 30% tolerance from the component thickness - here 2.868 satsify the rule. (Max. - 3.25mm & Min - 0.75mm).

If the rib root thickness is more , it may allow sink marks

7) height : distance between the ribs = 3:1 , here 15.5/5.3 = 2.92 ,satisfy the rule.

Draft anaylsis of component:-

Green coloured area is cleared by core & red cored erea is cleared by cavity. Draft angle of the ribs are 0.5°.Crreated ribs are cleared in the cavity side.

Thea is an undercut in the component , which is cleared with help of lifters ( placed on core side).

Front view:-

Top view:-

Side view

Isometric View:-

Tree structure for rib ceation