Welding process of quenching partition steel QP980 for automobile

The invention discloses a welding process of quenching partition steel QP980 for an automobile. The welding process of the quenching partition steel QP980 for the automobile comprises the steps that:Step S1, a strip steel coil of the quenching partition steel QP980 and a strip steel coil of transitional carbon structural steel are obtained; Step S2, the tail steel part of a previous coil and thehead steel part of a next coil are cleaned; Step S3, welding parameters are adjusted and the tail steel part of the previous coil and the head steel part of the next coil are lap-welded; and Step S4,the strip steel coil of the quenching partition steel QP980 and the strip steel coil of the transitional carbon structural steel are alternately arranged and welded in sequence. A narrow lap welding machine can be used between the quenching partition steel QP980 and the transitional carbon structural steel. The transitional carbon structural steel is increased through intervals, so that the narrowlap welding machine can rea