Mould construction and injection moulding Germany

General project parameters

The biggest challenge was in the lack of any 3D model of the plastic part. Consequently in order to implement the project for a customer in the automotive business, the item data was reversed-engineered based on a drawing and a 3D scan of samples.

This was needed to design and produce the subsequent tool. For this, dimensions were corrected and the mould was extended 16-fold. The fir tree contour of the holding clip was a significant factor together with this requirements profile.

Description - Injection moulding tools

• Manufacturing the later tool in Germany.
• Gating via 4 hot nozzles and cold runner
• Optimum filling of the parts was tested using a Moldflow simulation at the design stage
• Two ejector sets for separating item from sprue.
• Extra ejector set on the nozzle side as the product is symmetrical.
• Nesting the fir tree contour into 352 complex cores.

Description - Injection moulded parts

• The injection moulded parts used as holding clips were made with PA66 plastic.
• A marked feature of the injection moulded parts is the fir tree contour which is force de-moulded.
• The Technical Parts were produced for fixing a corrugated hose (cable guide) on the bodywork and must meet various requirements imposed on this operational field.