What investment casters need to know about 3D printing

Why you should use voxeljets 3D-printed PMMA patterns for Investment Casting?

3D-printed models defy the economy of scale principle. Prototypes, small and medium series can be produced in a way that is cost-effective and in no time, while offering greater detail, complexity and resolution than conventional methods.

There are many reasons why foundries and OEMs from various industries, ranging from aerospace, to automotive, to the pump industry, to artists, use PMMA-printed investment casting patterns.

Here are the top five reasons why you can rely on the 3D-printing technology offered by voxeljet:

  1. Large patterns and quantities due to large-format machines, as voxeljet offers one of the biggest 3D printers available on the market, with building sizes up to 1,000 x 600 x 500 mm
  2. Productivity:  voxeljet´s binder jetting technology applies high-resolution printheads, leading to finely detailed patterns, and fast printing throughput at high volume.
  3. Economical investment casting patterns: voxeljet´s inkjet technology enables users to print patterns at a lower per-part cost due to almost 100% recycling of the lose, non-printed PMMA material, no printed support structure needed and low running costs.
  4. No shell cracking: a negative thermal expansion coefficient of the PMMA patterns, leads to ideal burnout features, even for thin-walled geometries
  5. Easy burnout: voxeljet’s PMMA powder leaves nearly no residual ash after the burnout process. In addition, hardly any changes  in the casting process are necessary, as printed PMMA parts can be handled in autoclaves like conventional wax patterns.

To find out how 3D printing and the solutions offered by voxeljet can help you in your investment casting processes, download the new whitepaper.

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