低溫沉積成型過(guò)程溫度場(chǎng)建模與仿真分析
發(fā)布時(shí)間:2018-05-17 03:31
本文選題:低溫成型 + 建模仿真; 參考:《機(jī)械強(qiáng)度》2017年06期
【摘要】:低溫沉積成型是一種現(xiàn)代綠色的增材制造技術(shù)。在沉積過(guò)程中隨著沉積層的增高,冷凍所需要時(shí)間也在變化。建立了低溫沉積過(guò)程的溫度場(chǎng)模型,運(yùn)用數(shù)值模擬的方法對(duì)沉積過(guò)程的溫度變化進(jìn)行模擬仿真。分析出凝固時(shí)間和初始溫度、沉積層數(shù)、環(huán)境溫度和層間等待時(shí)間的關(guān)系,找到了最短冷凍時(shí)間,提高了沉積效率。低溫實(shí)驗(yàn)的結(jié)果也證明了模型的正確性。
[Abstract]:Low temperature deposition molding is a modern green material increasing technology. As the deposition increases, the time required for freezing also changes. The temperature field model of low temperature deposition process is established, and the temperature variation of deposition process is simulated by numerical simulation method. The relationship between solidification time and initial temperature, deposition layer number, environment temperature and waiting time between layers was analyzed. The shortest freezing time was found and the deposition efficiency was improved. The results of low temperature experiments also proved the correctness of the model.
【作者單位】: 西安理工大學(xué)機(jī)械與精密儀器工程學(xué)院;
【基金】:陜西省工業(yè)攻關(guān)項(xiàng)目(2012K07-25) 陜西省重點(diǎn)實(shí)驗(yàn)室項(xiàng)目(13JS071)資助~~
【分類(lèi)號(hào)】:TH16
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本文編號(hào):1899723
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