Week 8 - Challenge 5 - Core & Cavity Design

Parts with a 90 degree profile from it's base surface cannot be ejected from the tool.The friction creates removal of material thereby part failure.In oder to effectively remove the parts from the tooling axis,draft angles are given.The industries follow a default range for giving draft angles to the parts.Draft analysis technique is used to analyse whether the part model created in the cad is manufacturable or not.It ensures that proper draft angles are given to the face that may create problem otherwise.

Tooling axis is the axis along which the tooling process takes place.Choosing a wrong tooling direction can alter and deform the required profile.In cad,the tooling axis is created in multiple method:

*Bisecting method:A line which bisects all the faces of the profile is created and considered as the tooling axis.

*Intersection method:The boundaries of the profile are checked.The intersection of the faces are analysed and tooling axis created accordingly.