The chemical debinding process is important since it will create the first porosities in the part. This will thus allow to properly operate the thermal debinding and the sintering of your part.
However, cracks or delaminations may appear during chemical debinding if it is not properly done.
Definition of the phenomenon
Cracks or delaminations may appear when you remove the part from the acetone bath. Delaminations occur when the part is not debinded enough and the loss of mass does not exceed the 5% recommended.
Solution
First, check if the acetone has been heated to the right temperature and if the part has been left for 4 hours per millimeter of full walls.
Reminder : Because cracks are irreversible, you cannot remove the part, check its loss of mass, and then put it back. Do not hesitate to leave the part longer in the acetone bath if you have any doubt.
