Challenge

Week 8 - Challenge 1 - Base Bracket Design

MMathi Selvan14 Dec 2022

GEOMETRICAL TREE STRUCTURE

B SURFACE

C SURFACE

USE OF PUBLICATION AND CLOSED BODY

To perform draft analysis we need a tooling axis

TOOLING AXIS: The direction in which the mold or core and cavity opens is the tooling axis.

Creating a tooling axis

At first create a point with respect to the center hole. Then create a line from the point with respect to the z direction make sure to extend the line on both side

The line we just created was for reference to the main tooling axis

After creating a dummy tooling axis offest the plane in yz direction

Now with the plane created use the intersection option to create a intersection of the class A surface with recpect to the created plane

Now we got the intersection line with dummy tooling axis with this we are going to create the toolig axis

Create a line in the sideway joining the two inclined points on both sides

After the line is created use the bisecting line option

Then select the tow lines that we have just created and select the center point so that the tooling axis is accurate

Now we got our tooling axis with respet to the inclined lines and the center point

with this tooling axis we can now do the draft analysis

DRAFT ANALYSIS OF CLASS A SURFACE

CLASS B SURFACE

By extracting the side of the class a surface we are now are now going to create the ribs of class B surface

These are the side extracts of class A surface

we are now going to untrim each surface using the untrim option

The surface looks like this after untrim

The length of the surface is not enough so we are going to extend the surface to a certain distance using Extrapolation

After this we are gonna trim the surface to the required shape using Class A reference

This is the required shape and is 2.5mm below the class A surface

After this the base surface are extracted, untrimmed and extrapolated

Then they are trimmed with respect to the two ribs that we have created

After that the sharp edges are to be filleted we have to find the fillet value from the class A surface and add the thickness of the material to the fillet value