[en] Light charged particles and fragments emitted in collisions between ⁴⁰Ar projectiles (from 25 to 85 MeV/u) and ²⁷Al target nuclei have been detected in a 2Π geometry, i.e. nearly 4Π in the center-of-mass frame. An event-by-event analysis based on the use of the momentum sphericity tensor allowed to identify part of the central collision events. The angular distribution of light charged particles and fragments show that an incomplete fusion nucleus is formed and decays via isotropic emission at all incident energies, although no heavy residue is left above 36 MeV/u. Fusion is less and less complete as the incident energy increases. Nevertheless, a steady increase in the multiplicity of charged particles shows that the average excitation energy increases