Week 9 - Attachment Feature Creation - Challenge 1
Tooling axis creation
The tooling axis is important for removing the material when finished.
- First,I will creating the point on base surface respectively also extract the surface of the component as shown in image.
- I will create an axis system, from that axis I will get two cross-sections by using that cross sections lines i will create the tooling axis for the surface.
Taken cross-section along ZY plane.
Clearing tooling axis along Y direction
- Now creating a cross-section along the ZX plane
Clearing tooling axis along the X direction
- then using both tooling axis I can now create the main tooling axis for the given solid body by bisecting method.
- CREATING THE RIB ON THE COIN HOLDER:-
By using positioned sketch create sketch on extracted surface of given solid part as shown below.
Extrude the line along the tooling axis
Height of rib :-5*wall thickness(T)
5*2.5=12.5 from outer surface
Switch to part workbench and give rib thickness w=0.4* wall thickness(T)
=0.4*2.5
=1
Now assemble this rib with coin holder body,then provide draft to the ribs as 0.5degree with tooling direction
Rib thickness at the tip after draft should be greater than or equal to 0.75mm
Give radius of 0.25mm
Now create second ribs with above steps.
The spacing between the rib is calculated by 2 X wall thickness(T)
Rib spacing=2 x 2.5
= 5mm.
and the ratio between the height and the spacing is classified into two parts
- For steel,it is 3:1(less than 3)
- and for other or perferred is 2:1(less than 2)
therefore,
rib height/rib spacing=less than 2
12.5/5=2.5
not less than 2
so increasing the rib spacing distance to 1 mm or more
12.5/6.5=1.92(which is less than 2)
FOR ROOT THICKNESS
Now take intersection curves of complete body
Create tritangent circles by extracting the curves.
Ckecking all design parameters as per rules.
Draft analysis
Draft analysis of Solid part:
- After the creation of tooling axis,I will now perform the draft analysis for the provided solid part.
From the draft analysis,I observed that the red sides surfaces are almost or equal to 0 degrees.
Draft analysis of Rib
