| 熔融沉积成形喷头挤出参数优化控制 |
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| 引用本文： | 肖棋,顾永华,江开勇.熔融沉积成形喷头挤出参数优化控制[J].中国机械工程,2004,15(1):17-19. |
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| 作者姓名： | 肖棋 顾永华 江开勇 |
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| 作者单位： | 华侨大学机电及自动化学院,泉州,362011 |
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| 基金项目： | 福建省制造业信息化重大招标项目 (2 0 0 2 H0 95)，福建省自然科学基金资助项目 (E0 0 10 0 2 6) |
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| 摘 要： | 在FDM工艺中，成形材料能否以稳定的速度及温度从喷嘴中挤出将直接影响原型的成形质量。建立了熔体在喷嘴中的压力降与挤出流量、加热温度的数学模型，结合实验，确定了稳定挤出的速度区间。研究结果对FDM工艺中聚合物熔体挤出参数的优化、保证成形精度提供了依据。
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| 关 键 词： | 熔融沉积成形 熔体挤出 压力降 挤出参数 |
| 文章编号： | 1004-132X(2004)01-0017-03 |
Optimal Control of Nozzle Extrusion Parameters for Fused Deposition Modeling Processes |
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| Xiao Qi Gu yonghua Jiang kaiyong Huaqiao University,Quanzhou,Fujian.Optimal Control of Nozzle Extrusion Parameters for Fused Deposition Modeling Processes[J].China Mechanical Engineering,2004,15(1):17-19. |
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| Authors: | Xiao Qi Gu yonghua Jiang kaiyong Huaqiao University Quanzhou Fujian |
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| Affiliation: | Xiao Qi Gu yonghua Jiang kaiyong Huaqiao University,Quanzhou,Fujian,362011 |
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| Abstract: | In FDM process,extrusion behaviors of the nozzle are very important for the part quality(accuracy, surface quality and mechanical properties).A theoretical model was established for calculating the pressure drops of molten polymer while passing through the liquefier and nozzle. The relationship among the pressure drops, flow rate and heating temperature was obtained combined with the rheology test results of ABS and PP. Furthermore,supporting by the experimental results of the driven motor operating characteristics, an optimized feeding rate was determined for steady extrusion process. The research results have important reference values for determination of the extrusion parameters to ensure the modeling accuracy of prototype. |
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| Keywords: | fused deposition modeling extrusion of molten polymer pressure drop extrusion parameter |
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