The alpha-gamma transformation, followed by graphite dissolution and carbon diffusion, and finally the so called copper swelling, are the main events related to microstructural evolution that produce variations on the dimensions of the components within the Fe-Cu-C alloy system. A detailed description of the micromechanisms taking place during sintering is provided sustained by a thorough analysis of the dilatometric derivative curve combined with interrupted sintering cycles. This information is demonstrated to be essential to guarantee the robustness of the sintering cycle. Along those lines, industrially produced green parts have been sintered under both, production and laboratory conditions. The dimensional change was measured in a tridimensional machine and the mechanical properties were evaluated by hardness measurements and tensile tests using specimens sintered under the same conditions.