Additive manufacturing has revolutionized the way we design and produce metal parts. Complex geometries, lightweight structures, and rapid prototyping are now more achievable than ever. However, while 3D printing offers incredible design freedom, it often leaves behind one major issue—rough, uneven surfaces. That’s where surface finishing comes in. At Extrude Hone AFM, we specialize in refining metal 3D printed parts with abrasive flow machining (AFM) to enhance performance, functionality, and appearance.
Understanding the Limitations of As-Printed Surfaces
Metal additive manufacturing, particularly powder bed fusion processes tend to produce parts with a layered, grainy texture. These rough surfaces can cause several issues, especially when it comes to high-performance applications. Poor surface finish can hinder fluid flow, create stress concentrations, and reduce fatigue resistance. It can also make it harder to achieve proper seals or tight tolerances in mating parts. For industries like aerospace, medical, and automotive where precision matters, those flaws aren’t just inconvenient. They’re unacceptable.
How Abrasive Flow Machining Elevates Additive Parts
AFM is an ideal post-processing solution for 3D printed metal components. Unlike other finishing methods, abrasive flow machining can access and smooth internal channels, complex curves, and tight passageways that are otherwise unreachable. It works by pushing a specially formulated abrasive-laden media through the part, gently polishing the internal and external surfaces. The process can be fine-tuned to remove varying levels of material, depending on the part’s requirements. Whether you need aggressive deburring or a high-polish finish, AFM offers the flexibility and precision required to get the job done right.
Benefits Beyond Aesthetics
While AFM certainly improves the visual appeal of metal 3D printed parts, the real benefits are functional. Smoother surfaces mean better fluid and airflow, less drag, and more efficient performance. Reduced surface roughness also increases the fatigue strength of parts, which is critical in applications that endure stress and vibration. For components with internal cooling channels, such as those found in aerospace or automotive engines, AFM ensures optimal flow characteristics and thermal performance. In the medical field, smoother implant surfaces can lead to better biocompatibility and patient outcomes.
Extrude Hone AFM is Your Partner in Additive Manufacturing Success
At Extrude Hone AFM, we’ve been at the forefront of surface finishing innovation for decades. As additive manufacturing continues to evolve, we’re helping clients across industries bridge the gap between design freedom and real-world functionality. Our abrasive flow machining technology is trusted by engineers who need consistent, high-quality results—especially when it comes to finishing intricate 3D printed parts. If you're investing in 3D printing for metal components, don’t overlook the importance of post-processing. Our abrasive flow machining process can help you unlock the true performance of your additive parts by delivering the surface quality your application demands. Call us at (562) 531-2976 today to learn how our solutions can improve your 3D printed components from the inside out!
