Part has deformations on the outside


In this case, the part had trouble during debind but then sintered really well.

What likely happened is that the kiln/furnace temperatures ramped too quickly during the debind phase and the binder boiled out of the part rather than sublimating and escaping as a gas. You can see how the binder pushed out of the part.

Things to try:

  • Slow down the temperature ramps in the debind phase of your cycle. Slower heating will help the binder behave properly.

If you have a very large part, slow ramps are key. Take a look at this case study to see how one user adjusted the process to get great parts.

Great case study, but wow, 10 hour debind and 30 hour hold sintering times! Makes me glad I’m doing small parts :grin: