About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Optimization of Penetration Depth and Powder Layer Thickness for Proper Interlayer Adhesion in Polymer Laser Sintering |
Author(s) |
Yuki Yamauchi, Toshiki Niino, Takashi Kigure |
On-Site Speaker (Planned) |
Yuki Yamauchi |
Abstract Scope |
In laser sintering, melt pool depth relative to powder layer thickness is the main factor that determines interlayer adhesion strength. Melt pool depth is closely related to supplied energy amount and depth to which it reaches. Previous studies have shown that use of a near-infrared laser and an additive agent that absorbs its light allows for wide control of penetration depth. Present research focuses on the optimization of powder layer thickness and penetration depth to obtain proper interlayer adhesion. Supplied energy for each layer thickness was optimized to maximize built part density. To evaluate adhesion strength, ultimate tensile strength in the stacking direction of part built under the optimized supplied energy was measured. The dependence of adhesion strength on layer thickness normalized by penetration depth is discussed. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |