Hyundai Turns to Large-Format 3D Printing for Full-Scale Car Parts

Hyundai is not treating 3D printing as a side experiment anymore. The South Korean automaker has installed two VX1000 HSS polymer 3D printers from ExOne Global Holdings at its Namyang R&D Center, and the stated goal is to produce full-scale automotive parts, not just prototypes.

The VX1000 HSS uses High Speed Sintering. An infrared-absorbing ink is deposited selectively onto PA12 powder, fusing the material layer by layer. The process produces durable nylon parts that can replace tooling, brackets, and interior components without the long lead times of conventional molding.

What makes this installation notable is the scale. Large-format polymer 3D printing has spent years stuck in the prototyping ghetto, useful for design studies but rarely trusted for production parts. Hyundai is one of the largest automotive manufacturers in the world, and its R&D center putting these machines on the floor signals a shift in how OEMs view additive manufacturing.

The Namyang R&D Center is Hyundai's main engineering hub. Having the printers there means the company can iterate on tooling and end-use parts in real time, cutting the feedback loop between design and manufacturing. For a company that moves millions of units annually, even small reductions in tooling costs add up quickly.

PA12 powder is well-suited for automotive applications. It resists chemicals, handles temperature ranges common under the hood, and has enough toughness for functional testing. By using High Speed Sintering instead of traditional SLS, Hyundai also gains faster build times and lower per-part costs at production volumes.

This is not Hyundai's first step into additive manufacturing, but it is one of the most concrete. The company has explored metal 3D printing for structural components in the past, but polymer large-format printing opens a different set of use cases: jigs, fixtures, interior trim, and under-hood brackets that need to be strong, lightweight, and quickly replaceable.

The automotive industry has been slow to adopt 3D printing for production parts because certification, supply chain inertia, and cost structures all favor established methods. When a company like Hyundai moves, it usually means those barriers are starting to fall. If the VX1000 HSS delivers on its promises, other OEMs will follow.