本文選題：1100鋁合金 + 軋制　； 參考：《南京理工大學(xué)》2016年碩士論文

【摘要】：隨著社會的發(fā)展,對產(chǎn)品的功能需要日益提高。而微型傳感器和作動器的高度集成得到的智能結(jié)構(gòu)件,是諸多旨在提高資源利用率,產(chǎn)品安全和性能的關(guān)鍵所在。本文以1100鋁合金為材料,采用室溫微壓印成形的方式,制備含陣列槽的基板(智能金屬板基體),并通過改變不同成形工藝對陣列槽的成形狀況、微觀組織變化及力學(xué)性能進(jìn)行探究。本文主要結(jié)論如下：模擬實(shí)驗(yàn)與實(shí)物實(shí)驗(yàn)表明能夠成功成形陣列槽(含14個(gè)主溝槽0.3×0.35mm,2個(gè)次溝槽0.7×0.35mm)。陣列槽成形效果比較理想的工藝是：板坯預(yù)熱處理溫度315℃、保溫8h,軋制壓下量為30%,模具與軋制方向夾角為45°,壓印速度為25mm/min,模具拋光且擠壓過程中使用潤滑油,保壓時(shí)間為0s。軋制態(tài)鋁合金薄板表層主要出現(xiàn)剪切織構(gòu)和立方織構(gòu),經(jīng)過S取向到Copper-R取向,力學(xué)性能存在平面各向異性。微擠壓過程中,材料性能的各向異性對擠壓成形存在影響,凸模溝槽與軋制方向垂直時(shí),有利于成形；隨著軋制壓下量的增大,陣列槽力學(xué)性能(硬度指標(biāo))增大,且增大趨勢變緩；摩擦條件對陣列槽溝槽尺寸精度影響最為顯著。因此,選用合適的模具拋光手段和潤滑劑,對提高產(chǎn)品尺寸精度有著重要的作用；溝槽表面粗糙度被測定為最小可低至Ra=0.98μm,表面質(zhì)量較高,光滑度足夠滿足后續(xù)需求,各工藝參數(shù)對其影響均較小。
[Abstract]:With the development of society, the function of the product needs to be improved day by day. The intelligent structure, which is highly integrated with micro sensors and actuators, is the key to improve resource utilization, product safety and performance. In this paper, 1100 aluminum alloy was used as the material, and the substrate (intelligent metal plate) containing the array groove was prepared by room temperature microembossing, and the forming condition of the array groove was changed by changing the different forming process. The changes of microstructure and mechanical properties were investigated. The main conclusions of this paper are as follows: simulation and physical experiments show that the array grooves (including 14 main grooves 0.3 脳 0.35 mm and 2 secondary grooves 0.7 脳 0.35 mm) can be successfully formed. The ideal forming process of array groove is as follows: slab preheating temperature 315 鈩，

本文編號：1801378