Stratays announced that the Italian division of international consumer goods giant, Unilever, has cut lead times for prototype parts by 40% since introducing Stratasys‘ PolyJet 3D printing technology into its manufacturing process. Utilszing 3D printed injection moulding tools, the company is now able to produce prototype parts in the final material for functional and consumer tests significantly faster than traditional tooling methods, Stratasys said.
Unilever, which owns brands such as Surf, Comfort, Hellmanns and Domestos, is using its Stratasys Objet 500 Connex multi-material 3D production system to produce injection mould tools for its household care and laundry goods divisions, with a run of around 50 units for a wide variety of prototype parts such as bottle caps and closures and toilet rim blocks.
„With Stratasys 3D printing technology, we can design and print a variety of injection molds for different parts that can undergo functional and consumer testing, all on the same day,“ explains Stefano Cademartiri, R&D, CAD and Prototyping Specialist at Unilever. „Before, we would have to wait several weeks to receive prototype parts using our traditional tooling process; not only would this lengthen lead times, it would also increase costs if iterations were required. With 3D printing we’re now able to apply design iterations to the mold within a matter of hours, enabling us to produce prototype parts in final materials such as polypropylene, 40% faster than before.“
Armed with its Stratasys Objet500 Connex ,Unilever 3D prints its injection mould tools in Digital ABS – a material renowned for its high temperature resistance and toughness, making it ideal for injection moulding applications. Cademartiri continues: „By 3D printing the injection moulds in Digital ABS, we’re able to retain the high quality associated with traditional manufactured prototypes, while also enduring the high temperatures and pressures of the injection moulding machine, at a significantly reduced cost and turnaround time.“