A Proposed Scan Strategy Used on SLM Inner Structure Part
Jitai Han1,2,3, Meiping Wu1, Weipeng Duan1,2
1School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China.
Materials (Basel, Switzerland)
|February 26, 2020
Summary
Scan strategy significantly impacts inner structure precision and surface quality in 3D printing. A novel strategy enhanced both flatness and roughness, optimizing component performance.
Area of Science:
- Additive Manufacturing
- Materials Science
Background:
- Surface quality is critical for the performance of 3D printed components.
- Inner structure precision is often challenging to control in additive manufacturing.
Purpose of the Study:
- To investigate the relationship between scan strategies and the surface quality of inner structures.
- To identify scan strategies that optimize flatness and surface roughness.
Main Methods:
- Designed a model with an inner structure for testing.
- Utilized square-framed and Z-shape scan strategies.
- Proposed and tested a new scan strategy based on experimental data.
Main Results:
- Scan strategy significantly affects inner structure precision and surface quality.
- Z-shape scan strategy (along the inner structure) yielded optimal side surface roughness.
- Square-framed strategy resulted in lower positive face flatness due to bending deformation.
- Laser energy fluctuation impacted side surface roughness.
Conclusions:
- Scan strategy is a key factor influencing the surface quality of 3D printed inner structures.
- A novel scan strategy was developed, improving both positive surface flatness and side surface roughness.
- The findings provide insights for optimizing 3D printing processes for enhanced component performance.
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