Molding process method for cutting intersecting line and then bending pipe of vehicle body pipe fitting

The invention discloses a forming process method for firstly cutting an intersecting line and then bending a pipe of a vehicle body pipe fitting. The forming process method comprises the following steps: performing zero-allowance blanking, bending and unfolding calculation on a steel pipe, and determining the blanking and cutting length of the steel pipe of each workpiece. And according to the calculated blanking cutting length of the steel pipe, after the total cutting length, the cutting line and the arc opening direction marking line of the three-dimensional model of the part are processed, the three-dimensional model for cutting of the laser pipe cutting machine is formed. The three-dimensional model is guided into a laser pipe cutting machine to be cut; and clamping and bending the pipe. According to the method, the laser pipe cutting equipment is used for performing zero-allowance blanking and cutting precision on the intersecting line of the steel pipe, and the precision is guaranteed ...