研究目的
Investigating the impact of basic process parameters of selective laser sintering technology on the mass of the produced models, stress relaxation during compression, and geometric surface structure parameters.
研究成果
The study confirmed that process parameters significantly affect the density, mechanical properties, and surface texture quality of models produced by SLS technology. Optimal parameters for reduced mass while maintaining satisfactory mechanical and surface quality were identified. The research provides valuable insights for industrial applications of SLS technology, especially in producing models with specific mechanical and surface quality requirements.
研究不足
The study was limited to specific process parameters and material (PA 2200 polyamide powder). The findings may not be directly applicable to other materials or different sets of process parameters. Additionally, the study focused on a narrow range of energy density and layer thickness values, which may not cover all possible variations in SLS technology.
1：Experimental Design and Method Selection:
The study involved designing cylindrical samples with specific dimensions for stress relaxation tests, mass measurements, and surface texture analysis. The samples were manufactured using selective laser sintering (SLS) technology with varying process parameters including printing direction, energy density, and layer thickness.
2：Sample Selection and Data Sources:
Cylindrical samples were designed in CAD and manufactured using SLS technology with PA 2200 polyamide powder. Each sample was printed three times with given parameters for statistical calculations.
3：List of Experimental Equipment and Materials:
Equipment included a Formiga P100 machine for SLS, an Inspekt testing machine for stress relaxation measurements, a RADWAG AS 110/C/2 scale for mass measurements, and a Taylor Hobson Talysurf CCI Lite for surface texture measurements. The material used was PA 2200 polyamide powder.
4：Experimental Procedures and Operational Workflow:
The study varied three process parameters: printing direction (0°, 45°, 90°), energy density (0.032, 0.056, 0.08 J/mm2), and layer thickness (0.1, 0.2 mm). Stress relaxation, mass, and surface texture parameters were measured and analyzed.
5：032, 056, 08 J/mm2), and layer thickness (1, 2 mm). Stress relaxation, mass, and surface texture parameters were measured and analyzed.
Data Analysis Methods:
5. Data Analysis Methods: The results were analyzed using the least-squares method for approximation functions, with statistical analysis performed using Statistica and Mathematica software.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
