( 1. 中南大學(xué) 粉末冶金國家重點(diǎn)實(shí)驗(yàn)室， 長沙 410083；
2. 北京科技大學(xué) 材料科學(xué)與工程學(xué)院，北京 100083)
摘 要: 以實(shí)際生產(chǎn)的支持塊為例，結(jié)合3D技術(shù)， 模擬了注射成形喂料在復(fù)雜幾何模腔中的流動(dòng)情況。基于ANSYS提供的Z-Buffer切片模型空間觀測(cè)方式， 預(yù)測(cè)了實(shí)際制品缺陷產(chǎn)生的部位并分析了缺陷形成機(jī)理。最后依據(jù)模擬結(jié)果， 推薦在實(shí)際生產(chǎn)中采用INLET4位置澆口進(jìn)行注射生產(chǎn)，實(shí)驗(yàn)表明制得的支持塊無缺陷， 產(chǎn)品通過了有關(guān)部門的驗(yàn)收， 證明了充模流動(dòng)3D模擬的可行性和準(zhǔn)確性。
關(guān)鍵字: 金屬注射成形； 支持塊； 充模流動(dòng)； 3D模擬
（ 1. State Key Laboratory of Power Metallurgy,
Central South University, Changsha 410083, China;
2. School of Materials Science and Engineering,
University of Science and Technology Beijing,
Beijing 100083, China）
Abstract: The 3D simulation of the process of filling a complicated cavity was illustrated, the positions of defects were predicted and the mechanisms was discussed. Prior to the practical production, the die filling behavior of new inlets were simulated. Finally, the INLET4 was recommended as the optimal injection position. Good products that have passed through the acceptance check of relative department are made according to the simulation results.
Key words: metal injection molding; complicated part; die filling; 3D simulation
