Comparison of 3D metal printed and water-jet cut 17-4 PH stainless steel specimens

Hampson, Paul; Deen, Muazzam

Abstract

Additive manufacturing techniques have enabled the formation of metal products within a short period of time and with high precision. As a result, these techniques are of particular interest to applications in the aerospace, automotive and biomedical industries.

In this study, tensile test specimens of 17-4 PH stainless steel were 3D metal printed to dimensions in accordance to the ASTM E8 standard. The 3D printed samples were then brought to H900 heat treatment conditions. A pre-fabricated sheet of 17-4 PH stainless-steel sheet already heat-treated to H900 condition was obtained from a manufacturer and cut into tensile test specimens using a water-jet cutter. Comparisons were then made for geometrical dimensional accuracy, hardness, mass, yield stress and percentage elongation.

Both 3D printing and water-jet cutting methods were found to be accurate for producing specimens with good dimensional accuracy. Overall, the mechanical performance of the water-jet cut samples in this study were shown to be superior; whilst the water-jet cut specimens were just over twice the mass of the printed specimens, they were able to withstand load forces approximately 3.5 times greater. This was due to the 3D printed sample cross-sectional area being reduced due to the in-fill pattern geometry.

Citation

Hampson, P., & Deen, M. (2021). Comparison of 3D metal printed and water-jet cut 17-4 PH stainless steel specimens. #Journal not on list, 1(1), 15-24

• Journal Article Type: Article
• Acceptance Date: Apr 6, 2021
• Publication Date: Jul 6, 2021
• Deposit Date: Jan 16, 2024
• Journal: Pennine Research
• Peer Reviewed: Peer Reviewed
• Volume: 1
• Issue: 1
• Pages: 15-24
• Series ISSN: 2516-8754
• Related Public URLs: https://www.researchgate.net/publication/353154947_Comparison_of_3D_metal_printed_and_water-jet_cut_17-4_PH_stainless_steel_specimens