About this Abstract |
Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Presentation Title |
An Investigation of the Effects of Hatch Distance and Spray Pattern on Film Adhesion and Surface Roughness in Micro-Cold Spray |
Author(s) |
Ronnie Frank Pires Stone, Desiderio Kovar, Zhenghui Sha |
On-Site Speaker (Planned) |
Ronnie Frank Pires Stone |
Abstract Scope |
Micro-Cold Spray (MCS), also known as the Aerosol Deposition Method (ADM), is a solid-state technique originally developed for ceramic coatings. It enables the formation of dense, thick films using simple process parameters, but precise geometric control remains difficult due to complex deposition dynamics, similar to cold spray and thermal spraying. This limitation hinders the advancement of MCS as a true additive manufacturing (AM) method, particularly for micro-electromechanical systems applications. A critical yet underexplored factor in achieving geometric control is the spray path. While preliminarily studied in traditional cold spray, a systematic investigation in MCS is lacking. This paper presents the first experimentally validated study of how hatch distance and spray pattern, specifically normal and overlapping serpentine paths, affect MCS film morphology. By analyzing film adhesion and surface roughness, we offer new insights into deposition control, advancing the potential of MCS as a viable AM technology. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |