Question

pbf: post - processing
use the information below to answer the question.
heat treating
one post - processing step for powder bed fusion (pbf) prints is to use heat treating. heating the metal of the print and then quickly cooling it down removes any internal stresses within the metal. this reduces the chance of it affecting the performance of the piece.
support material
another step of post - processing for powder bed fusion (pbf) prints involves the support material. the support material has to be removed by the operator using a grinder once the print is complete. after the support material is removed, traditional machine finishing techniques can be used such as welding, grinding, or polishing.
a subtractive manufacturing process can be done as well, whereby a cnc machine removes material. sandblasting, shot - peening, or micro - polishing can be done during post - processing as well.
what can be used on powder bed fusion (pbf) prints after the support material is removed?
an ultrasonic bath treatment
a chemical adhesive treatment
a lost - wax technique
traditional machine tooling techniques

Explanation:

The text states that after the support material is removed from Powder Bed Fusion (PBF) prints, traditional machine - tooling techniques like welding, grinding, or polishing can be used.

Answer:

traditional machine tooling techniques