Door Arm Rest Week 8 Challenge

Draft analysis of metal bracket CLASS A SURFACE:-

We got the CLASS A SURFACE of the DOOR ARM REST to check the draft analysis and creating the thicken part body from it. Before checking or starting the procedure for draft analysis we need to check the surface. Initially we check the gaps between the surface and also check the no. of surfaces we have because, we need just one single joined surface for draft analysis. If the gaps were found then we will join the surface.

Initially we check the tooling direction by visually observing the part or surface. After calculating or finding the no. of possibilities than we start the draft analysis according the cheapest and best way to do the manufacturing by avoiding side cores and easy manufacturability for the part or surface creation. The draft angle can be 0.5 degrees to 1 degree. But, we used the 3degrees for better manufacturability and it will be taken as nominal.

Initially we create a point for center or tooling direction creation. Then we create axis system by using that point with reference to main axis system. Now, we create the intersection line on the surface by using of ZY plane or coordinates. Then we draw line with using point to point feature on the lines which we have doubts for not clearing of tooling direction. Then we draw vertical bisecting line by using these two lines and center point which we were created. This will be “TOOLING DIRECTION1” of the metal bracket.

Then we created the tooling direction by using the surface. Here we extracted the surface then we untrimmed and drawn a line vertical. This line will be our TOOLING DIRECTION2. We created this tooling direction because the tooling direction1 will not clear the surface for draft analysis.

After creating two tooling direction we didn’t get the proper draft analysis so that means we need side core and side tooling direction for side core creation. So, we drawn a line by using side surface that line is called "SIDE TOOLING DIRECTION" for the mold.

As we created this many tooling directions the model is not clearing the draft analysis means there will be defects in CLASS A SURFACE.   

Draft analysis on surface:-

With tooling directin1

with tooling direction2

side tooling direction

Draft analysis on part:-

With tooling directin1

 

with tooling direction2

side tooling direction

views:-

sketch constraint:-

feature tree:-