本文關(guān)鍵詞： 藍(lán)寶石 軸向超聲振動(dòng)輔助磨削 磨削特性 表面形貌　出處：《中國(guó)機(jī)械工程》2017年11期 　論文類型：期刊論文

【摘要】：選取藍(lán)寶石的A面、C面、M面及R面開展軸向超聲振動(dòng)輔助磨削試驗(yàn),并從磨削力、比磨削能、表面粗糙度及表面形貌等角度對(duì)比藍(lán)寶石四個(gè)晶面超聲振動(dòng)輔助磨削效果的差異。施加超聲振動(dòng)輔助磨削時(shí),藍(lán)寶石四個(gè)晶面的磨削力、比磨削能及表面粗糙度相對(duì)未施加超聲振動(dòng)時(shí)均有所減小,且工件表面損傷裂紋較小,表面質(zhì)量更好;藍(lán)寶石不同晶面在施加超聲振動(dòng)時(shí)的磨削力、比磨削能和表面粗糙度的減小比例不同,C面的減小比例最小,M面和A面的減小比例較大,R面的減小比例最大;超聲振動(dòng)輔助磨削藍(lán)寶石四個(gè)晶面時(shí),R面的改善效果最好,其次是M面和A面,C面的改善效果較差,這反映工件材料的脆性越大,超聲輔助磨削對(duì)加工質(zhì)量的改善效果越明顯。
[Abstract]:The axial ultrasonic vibration assisted grinding test was carried out on the A / C and R surfaces of sapphire, and the grinding force and grinding energy were compared. The effect of ultrasonic vibration assisted grinding on four crystal faces of sapphire is compared with the surface roughness and surface morphology. The grinding force of four crystal planes of sapphire is applied to the grinding with ultrasonic vibration assisted grinding. The specific grinding energy and surface roughness are both decreased when ultrasonic vibration is not applied, and the surface damage crack is smaller and the surface quality is better. The grinding force of different crystal faces of sapphire under ultrasonic vibration has different reduction ratio of grinding energy and surface roughness. The reduction ratio of C plane and A plane is smaller than that of A plane. The reduction ratio of R plane is the largest; Ultrasonic vibration assisted grinding of four crystal faces of sapphire has the best improvement effect on R plane, followed by M plane and A plane C plane, which reflects the greater brittleness of workpiece material. Ultrasonic assisted grinding is more effective in improving machining quality.
【作者單位】： 華僑大學(xué)制造工程研究院;華僑大學(xué)脆性材料加工技術(shù)教育部工程研究中心;
【基金】：國(guó)家自然科學(xué)基金-海峽聯(lián)合基金重點(diǎn)資助項(xiàng)目(U1305241);國(guó)家自然科學(xué)基金資助項(xiàng)目(51675192,51575197)
【分類號(hào)】：O786;TQ133.1
【正文快照】： 0　引言藍(lán)寶石(α-Al2O3)具有良好的光學(xué)性能、化"學(xué)穩(wěn)定性、耐磨性、熱穩(wěn)定性及較高的硬度(莫氏硬度9.5級(jí)),是一種集優(yōu)良的光學(xué)性能、物理性能和化學(xué)性能于一體的多功能氧化物晶體,目前已被廣泛應(yīng)用于工業(yè)、航空航天、國(guó)防及生活等領(lǐng)域中[1-3]。藍(lán)寶石晶體的這些應(yīng)用對(duì)其尺寸

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本文編號(hào)：1466258