Manufacturing a transparent wall forming a rear window of a vehicle, comprises cutting a workpiece in a transparent plate, shaping the cut part, heating the shaped part, and forming a lower matrix and an upper matrix on heated part

摘要

The method comprises cutting a workpiece in a transparent plate, shaping the cut part, heating the shaped part, forming a lower matrix (MI) and an upper matrix (MS) on the heated part, and hardening the formed part to obtain a transparent wall (PT). The step of forming the lower matrix and the upper matrix comprises a punch (PP) for defining two internal recesses constituting a prism to outwardly transfer the light propagating internally to provide a lighting function in the heated part. The internal recesses are provided with scratches. The method comprises cutting a workpiece in a transparent plate, shaping the cut part, heating the shaped part, forming a lower matrix (MI) and an upper matrix (MS) on the heated part, and hardening the formed part to obtain a transparent wall (PT). The step of forming the lower matrix and the upper matrix comprises a punch (PP) for defining two internal recesses constituting a prism to outwardly transfer the light propagating internally to provide a lighting function in the heated part. The internal recesses are provided with scratches. The lower matrix is of concave form. The upper matrix is of convex form. The punch is removable. The method further comprises a step of serigraphy intended to define a serigraphy zone between the shaping step and the heating step. Each internal recess is defined in the serigraphy zone. The transparent plate is made of glass or synthetic material. The transparent wall offers a selected lighting function to exchange signaling type light stop sign.