Volkswagen Group, Germany, reports that it is developing 3D printing for replacement parts such as the water connectors for the Audi W12 engine shown here. In another program, a reinforced A-pillar window support has been redesigned for 3D printing, and weighs 74% less than the original, while maintaining strength and durability.
The company already uses the technology for prototypes, parts in very small lot sizes, and original parts whose replacements are no longer stocked in warehouses. The company’s goal for the future is to ensure a supply of replacement parts with regional printing centers that will produce parts on demand, simplifying logistics and warehousing operations.
In addition to auto parts, the company plans to reduce weight in tools for hot forming, plastic injection molding, and diecasting, thereby enabling improved cooling and reduced process times.
However, much work remains to be done before the technology becomes suitable for mass production. Volkswagen expects 3D printing to remain limited to special application areas for the time being, because of its relatively low production speed and high cost. In addition, dimensional accuracy and finish quality must be improved to make it a viable technology for mass production.
