3D printing brakes for rail


Source: Eplus3D Publish

HANGZHOU, China — Over the past few years, we’ve seen 3D printing adopted by many different industries, from the automotive industry to the aerospace industry. Urban transport benefits a lot from metal 3D printing. The railway is no exception.

The railway sector obviously needs a lot of high quality parts. The safe and stable operation of a train is inseparable from the guarantee of long-term maintenance and functionality that the manufacturers of such equipment must provide.

When it is necessary to replace parts, but no spares are in stock, the railway supplier must contact the manufacturer to provide them quickly.

At present, the management costs as well as the spare parts procurement costs will be relatively high. With the rapid development of 3D printing technology, this technology is applied to assist in the operation and maintenance of trains, provide customized parts, and replace damaged parts. Compared with traditional manufacturing processing, 3D printing has a faster response and is more cost-effective.

The speed of high-speed railways can reach 350 km/h or more. Although relatively easy to drive, it is difficult to stop. The main difficulty is that when braking, each train car weighing more than 60 tons will produce enormous inertia, which generates enormous kinetic energy, causing the brake discs to heat up due to friction during braking.

Therefore, the brake pads and brake discs should not only withstand the high temperature of around 900°C, but also ensure its good performance at the same time. It should also be able to operate normally even in harsh environments such as rain, snow, sand and/or dust. In recent years R & D and production technology of high-speed railway pads and brake discs. gradually made inroads.

With the deep integration of metal 3D printing technology in the railway industry, metal 3D manufacturers are beginning to explore the application of metal 3D printing technology to improve the performance of brake pads and brake rotors. brake. Eplus3D, as China’s leading AM manufacturer, is also entering the railway industry with its large format metal AM machines.

Earlier this year, Eplus3D cooperated with a railway company to provide them with a bespoke metal AM solution by printing multiple brake discs with its EP-M650 large format metal AM machine (quad-laser).

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