Three-dimensional printer and methods for assembling parts via integration of additive and conventional manufacturing operations

A three-dimensional (3-D) printer, comprising:

• a frame;
• a powder bed region arranged in a lower portion of the frame;
• a depositor configured to deposit print material into the powder bed region;
• an energy source configured to selectively fuse successive layers of the deposited print material to form a build piece, wherein the build piece comprising a cavity or recess;
• a tool configured to remove a portion of the build piece;
• a robotic arm configured to insert the portion of the build piece into at least a portion of the cavity or recess of the build piece, and apply an adhesive and a sealant, wherein the sealant is applied to contain the adhesive;
• and
• a controller configured to interrupt fusing by the energy source to enable the robotic arm to perform the insertion of the portion and thereafter to enable resuming the fusing.