3/21/2018

Extrude Hone’s Coolpulse Smooths Surfaces on 3D-Printed Parts

Originally titled 'Electrochemical Machining Process for Metal 3D-Printed Parts'

Rapid 2018: The process uses electrochemical machining (ECM) to smooth rough surfaces on metal 3D-printed parts. 

Extrude Hone’s Coolpulse technology for surface finishing provides an economical way of processing and refining the rough surface finishes found on metal 3D-printed parts. The electrochemical machining (ECM) approach is said to enable fast reaction times and flexibility. 

Like ECM, Coolpulse follows the principles of anodic metal dissolution but can be applied in two ways. The first method is Bath technology, in which the part is placed between two metal plates. The method is easy to setup and a flexible way to micro-deburr parts without much dedicated tooling, the company says.

The second method, Tooling technology, uses a dedicated cathode which mirrors the part geometry. This method enables improving the external and internal surface finish while removing defects from support structures simultaneously. Depending on the surface finish requirements, the Tooling method can either use a simple setup tooling, assembled with standard parts of a toolkit, or a specifically designed cathode produced on a metal 3D printer.

The process is suitable for use with materials such as Inconel, Hastalloy, maraging steel, stainless steel, aluminum alloys and tool steels. 

RELATED CONTENT

  • Directing the Future of Laser Metal Deposition (LMD)

    Formalloy is proving that LMD is for more than repairs and large parts. Fast deposition rates, fine detail capabilities and multimaterial support promise to change how parts are designed and made.

  • Magnetic 3D Printing with Fiber Reinforcement Fills Tooling Gap

    Fortify’s Digital Composite Manufacturing (DCM) platform pairs high-performance resins with fiber reinforcement that can be controlled at the voxel level. The process promises a faster route to durable injection mold tooling.

  • Additive Manufacturing with Sheet Lamination

    No longer limited to paper, Sheet Lamination bonds sheets of material together to form an object. Companies are now expanding to different materials for sheet lamination, exploring the growing possibilities of a process that started with gluing and stacking hundreds of colored sheets of paper together.

Resources