葉林，南方科技大學(xué)系統(tǒng)設(shè)計(jì)與智能制造學(xué)院講席教授, 1987年于北京航空航天大學(xué)獲得博士學(xué)位。1990年獲德國(guó)亞歷山大洪堡基金會(huì)研究獎(jiǎng)金赴德國(guó)凱撒斯勞滕大學(xué)復(fù)合材料研究所工作。1992年應(yīng)聘為澳大利亞悉尼大學(xué)機(jī)械工程系講師，此后在悉尼大學(xué)歷任高級(jí)講師、Reader、教授、學(xué)院院長(zhǎng)、先進(jìn)材料技術(shù)中心主任等。

葉林教授是復(fù)合材料研究領(lǐng)域公認(rèn)享有國(guó)際聲譽(yù)和學(xué)術(shù)地位的學(xué)科帶頭人。葉林教授的研究涉及高性能復(fù)合材料力學(xué)的諸多領(lǐng)域，包括先進(jìn)復(fù)合材料、智能材料與結(jié)構(gòu)、納米材料及納米增強(qiáng)復(fù)合材料、結(jié)構(gòu)完整性及耐久性。葉林教授在先進(jìn)復(fù)合材料和功能材料的基礎(chǔ)研究和技術(shù)開發(fā)領(lǐng)域均做出了杰出的貢獻(xiàn)，獲得了世界范圍內(nèi)的廣泛認(rèn)可。鑒于葉林教授在先進(jìn)復(fù)合材料等領(lǐng)域的杰出貢獻(xiàn)和影響力，2004年獲得德國(guó)洪堡基金會(huì)的Friedrich Wilhelm Bessel研究獎(jiǎng)。2005年，為表彰葉林教授為澳大利亞航空航天工業(yè)復(fù)合材料和智能材料領(lǐng)域的杰出貢獻(xiàn)，當(dāng)選澳大利亞工程院（ATSE）院士（FTSE）。

講座題目：

Additive manufacturing of continuous fiber composites using fused filament fabrication

講座內(nèi)容：

Fused filament fabrication (FFF) has been extensively studied in recent years because of its capability for manufacturing continuous fiber composite parts. The successful fabrication of high quality continuous fiber composite parts using FFF is secured by completion of a few key mechanisms such as precise deposition of a filament and fusion between a depositing filament and filaments deposited in previous steps, while the fusion is modulated by two key mechanisms, i.e., “intimate contact” and “autohesion”. This presentation summarizes some recent results on additive manufacturing of comtinuous CF/PA composites. A mechanistic model is developed to describe “intimate contact” and “autohesion” processes during the “interlaminar” deposition mode, equipped with parameters such as surface profile of depositing filament, temperature of depositing head, contact duration between filaments, contact pressure between filaments, while the latter is measured by a high precision 3D dynamometer instrumented on the 3D printing platform. It is concluded that a high quality pre-impregnated filament of a precise diameter and high precision deposition of the filament in a defined path with a tailored processing window of deposition temperature, depositing speed, and deposition pressure are the keys for the successful fabrication of high quality continuous fiber composite parts using FFF.