Electronic Housing Injection Mold

In this project, developed for electrical and electronic equipment, we built the injection mold for a black plastic housing with a screw-fastened mounting flange and a matte visible surface. For the housing to mate with its counterpart without gaps, the flange flatness and the position of the screw bosses were the most critical dimensions.

During the design phase, we focused on preventing warpage in the thin-walled housing and sink marks that could form behind the screw bosses.

• CAD-CAM 3D mold design
• Fill balance and warpage prediction with mold flow analysis
• Wall thickness adjustment to reduce sink marks at the screw bosses
• Mold surface treatment for a matte visible surface

The cavity and core inserts of the housing were machined on CNC vertical machining centers. Precision machining parameters were used to maintain dimensional accuracy in the flange and screw boss areas; visible surfaces were finished to a quality suitable for surface treatment.

In the trial shots, flange flatness, screw areas and the visible surface were checked. The samples were submitted for customer approval together with a measurement report. [PLACEHOLDER] Add trial and correction details.

The mold went into series production; the housing is produced with a flat flange that mates with its counterpart without gaps and a uniform matte surface. [PLACEHOLDER] Add results such as cycle time and production quantity.