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Achieving 99.9% Density in SLM: More Than Just a Number

2025年10月21日 单位
Achieving 99.9% Density in SLM: More Than Just a Number
Lucero Pachon

When engineers hear “3D printing,” many still think of prototypes, plastic models, or lightweight parts with limited functionality. But metal additive manufacturing, particularly Selective Laser Melting (SLM), has redefined those assumptions. One of the most impressive achievements in SLM is its ability to produce parts with densities up to 99.9%, on par with traditional casting or machining.


This level of density isn’t just a lab-bench metric. It translates into real world mechanical strength, fatigue resistance, and thermal stability, key attributes for demanding applications in aerospace, medical, and motorsport industries. High density means fewer internal voids, less porosity, and more predictable behavior under load or stress.


Achieving this density requires tight control over process parameters: laser power, scan speed, hatch spacing, layer thickness, and post-processing. Techniques like Hot Isostatic Pressing (HIP) can further enhance density and eliminate microvoids, resulting in parts that meet or exceed conventional manufacturing standards.


At Scojet, we don’t just print, we engineer for function, reliability, and scale. Whether you need surgical implants, aircraft brackets, or high performance housings, we deliver metal printed parts that aren’t just strong, they’re built to perform.