A method of crimping an electrical terminal onto a wire, comprising: - providing an assembly comprising:. a wire extending along a longitudinal direction and having a stripped part comprising a plurality of strands,. an electrical terminal comprising a crimping section which comprises a barrel adapted to receive said stripped part and a plurality of pairs of individual wing portions (4a, 5a, 4b, 5b, 4c, 5c) extending from the barrel, wherein slots are performed between neighbouring wing portions (4a, 5a, 4b, 5b, 4c, 5c), each pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c) comprising two wing portions (4a, 5a, 4b, 5b, 4c, 5c) facing each other, each wing portion (4a, 5a, 4b, 5b, 4c, 5c) having a connection end connected to the barrel, and a free end opposed to the connection end, and having a length, measured at the step of providing the assembly, between the connection end and the free end, said stripped part extending into said barrel between the wing portions (4a, 5a, 4b, 5b, 4c, 5c) of each pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c), - applying an initial crimping step, by folding an initial part of the crimping section, comprising at least one pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c), over the stripped part of the wire, - applying a subsequent crimping step, by folding a subsequent part of the crimping section, comprising at least another pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c), over the stripped part of the wire, so as to compress the strands under the subsequent part, wherein the length of the wing portions (4b,5b) of one pair of wing portions (4b,5b) is greater than that of the wing portions (4a,5a,4c,5c) of another pair of wing portions (4a,5a,4c,5c), wherein the wing portions (4b,5b) with a greater length are submitted to the subsequent crimping step causing a displacement of strand material to neighbouring zones, the displacement causing an expansion of the strands in the neighbouring zones, and the expansion elastically deforms the neighbouring wing portions (4a, 5a, 4c, 5c) away from a rest position. - providing an assembly comprising:. a wire extending along a longitudinal direction and having a stripped part comprising a plurality of strands,. an electrical terminal comprising a crimping section which comprises a barrel adapted to receive said stripped part and a plurality of pairs of individual wing portions (4a, 5a, 4b, 5b, 4c, 5c) extending from the barrel, wherein slots are performed between neighbouring wing portions (4a, 5a, 4b, 5b, 4c, 5c), each pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c) comprising two wing portions (4a, 5a, 4b, 5b, 4c, 5c) facing each other, each wing portion (4a, 5a, 4b, 5b, 4c, 5c) having a connection end connected to the barrel, and a free end opposed to the connection end, and having a length, measured at the step of providing the assembly, between the connection end and the free end, said stripped part extending into said barrel between the wing portions (4a, 5a, 4b, 5b, 4c, 5c) of each pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c),. a wire extending along a longitudinal direction and having a stripped part comprising a plurality of strands,. an electrical terminal comprising a crimping section which comprises a barrel adapted to receive said stripped part and a plurality of pairs of individual wing portions (4a, 5a, 4b, 5b, 4c, 5c) extending from the barrel, wherein slots are performed between neighbouring wing portions (4a, 5a, 4b, 5b, 4c, 5c), each pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c) comprising two wing portions (4a, 5a, 4b, 5b, 4c, 5c) facing each other, each wing portion (4a, 5a, 4b, 5b, 4c, 5c) having a connection end connected to the barrel, and a free end opposed to the connection end, and having a length, measured at the step of providing the assembly, between the connection end and the free end, said stripped part extending into said barrel between the wing portions (4a, 5a, 4b, 5b, 4c, 5c) of each pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c), - applying an initial crimping step, by folding an initial part of the crimping section, comprising at least one pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c), over the stripped part of the wire, - applying a subsequent crimping step, by folding a subsequent part of the crimping section, comprising at least another pair of wing portions (4a, 5a, 4b, 5b, 4c, 5c), over the stripped part of the wire, so as to compress the strands under the subsequent part,