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通过综合实验和数值模型将激光增材制造工艺与热源系数相对应
Changrong Chen1,2, Jingxin Zhou1,2,3, Tianxin Zhao1,2
1Fujian Key Laboratory of Intelligent Machining Technology and Equipment, Fujian University of Technology, Fuzhou, China.
3D printing and additive manufacturing
|September 11, 2025
概括
本研究引入了一种新的响应表面方法 (RSM) 绘制方法,用于校准激光增材制造中的热源. 该方法准确地将过程参数与热源系数相关联,改进了热建模以获得更好的预测.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 计算建模 计算建模
背景情况:
- 准确的热场预测对于增材制造 (AM) 工艺模拟至关重要.
- 热源的表示显著影响了预测热和机械效应 (如扭曲和余应力) 的数值模型的准确性.
研究的目的:
- 开发和验证一种在AM模拟中校准热源系数的方法.
- 使用响应表面方法 (RSM) 建立AM过程参数和热源特征之间的可靠相关性.
主要方法:
- 在中央复合材料设计中使用响应表面方法 (RSM) 和差异分析 (ANOVA).
- 采用非线性最小方程方法来反向解决热源系数.
- 过程参数和热源系数对珠子几何学的相关量化影响.
主要成果:
- 确定过程参数和热源系数都可以使用二次多项式来建模,以预测珠子几何.
- 使用多项式函数证明了热源系数和过程变量之间的连接的准确建模.
- 量化了工艺因素和热源模型系数对实验和数值珠子几何学的影响.
结论:
- 拟议的RSM映射方法是一种可行和可靠的方法,用于AM中的热过程相关性.
- 这项研究为激光增材制造中的热源校准提供了一种方便而准确的方法.
- 通过准确的热源校准来改进热建模,可以更好地预测AM过程的结果.
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