Hot Isostatic Pressing (HIP) Closes Porosity in Metal Parts

At Aalberts Surface Technologies-Accurate Brazing’s Greenville, South Carolina, facility, the company is establishing HIP services almost entirely dedicated to serving additive manufacturers. To demonstrate the process’s ability to close pores — even large ones — Aalberts uses the sample parts shown in the video above. Each piece began as steel barstock that was cut in two short sections; a hole was machined from the face down into the bar, and then the two halves were welded back together, enclosing the void. Then, one of the samples was put through the HIP process. Both parts were cut in half vertically afterward; the un-HIPed sample shows the void still intact, while in the HIPed part, the hole has completely closed. The part’s slight hourglass shape after hot isostatic pressing was caused by material being pressed inward to fill the void and remove porosity.

LEARN MORE ABOUT
- Hot isostatic pressing and its uses in additive manufacturing https://www.additivemanufacturing.media/articles/am-101-what-is-hot-isostatic-pressing-hip-includes-video-
- Aalberts Surface Technologies-Accurate Brazing’s HIP facility in Greenville, South Carolina https://www.additivemanufacturing.media/articles/am-101-what-is-hot-isostatic-pressing-hip-includes-video-
- Postprocessing steps and costs for metal 3D printed parts https://www.additivemanufacturing.media/articles/postprocessing-steps-and-costs-for-metal-3d-printing
- How heat treating affects machining considerations for 3D printed metal parts https://www.additivemanufacturing.media/articles/how-does-heat-treating-affect-a-metal-3d-printed-part

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#hot_isostatic_pressing #hip #additive_manufacturing #3d_printing #metal_additive_manufacturing #manufacturing #porosity #fully_dense_material #metal_parts #production_parts #closing_porosity #low_porosity #metal_3d_printing #aalberts_surface_technologies-accurate_brazing #metal_casting #heat_treating #heat_treat #hip_furnace #thermal_stresses #thermal_stress #part_density #ductility #fatigue_resistance #post_processing #post_processing_3d_prints

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