Abstract: A process for manufacturing a safety razor cartridge that includes providing an assembly having a platform having a top face, the platform including a cap portion and two lateral side portions, at least one cutting member extending between the lateral side portions of the platform, the cutting member being supported by the platform, the cutting member being movable with respect to the platform, the platform and cutting member cooperating to guide a movement of the cutting member with respect to the platform, a cover having a bottom face facing the top face of the platform. The cover includes a cap portion that covers the cap portion of the platform and two lateral side portions that cover the lateral side portions of the platform. The cover is welded to the platform by applying an ultrasonic beam to a plurality of discrete locations of the assembly.