本文關(guān)鍵詞： 鎂鋁尖晶石 塑性域磨削 金剛石砂輪 表面粗糙度　出處：《光學(xué)精密工程》2017年04期 　論文類型：期刊論文

【摘要】：為了避免和減小鎂鋁尖晶石在研磨工藝中產(chǎn)生的亞表面損傷,研究了合理控制磨削參數(shù),實(shí)現(xiàn)鎂鋁尖晶石塑性域磨削的方法。分析了鎂鋁尖晶石的脆塑轉(zhuǎn)變機(jī)理,采用不同尺寸規(guī)格的金剛石砂輪磨粒和改變砂輪進(jìn)給量等參數(shù)進(jìn)行了大量實(shí)驗(yàn),探索了鎂鋁尖晶石的塑性磨削條件及影響因素,實(shí)現(xiàn)了鎂鋁尖晶石的塑性域高精度磨削。采用VG401MKⅡ型超精密磨床和3000#金剛石砂輪,設(shè)定砂輪速度為20m/s,工件速度為0.3m/s,進(jìn)給量為0.5~3μm/r進(jìn)行了磨削實(shí)驗(yàn)。結(jié)果顯示:當(dāng)金剛石砂輪磨粒的平均尺寸小于8μm時(shí)可以實(shí)現(xiàn)鎂鋁尖晶石的塑性磨削,其表面粗糙度Ra可以達(dá)到2.291nm,透光率可提高17%。研究結(jié)果表明,砂輪的平均磨粒尺寸和砂輪進(jìn)給量對(duì)鎂鋁尖晶石材料的表面加工質(zhì)量影響很大,該結(jié)果為研究磨削高質(zhì)量鎂鋁尖晶石表面提供了依據(jù)。
[Abstract]:In order to avoid and reduce the subsurface damage of magnesia-aluminum spinel in grinding process, the method of reasonably controlling grinding parameters to realize the plastic domain grinding of magnesia-aluminum-spinel was studied, and the mechanism of brittle plastic transition of magnesia-aluminum spinel was analyzed. A large number of experiments were carried out using diamond wheel abrasive particles of different sizes and changing the feed rate of grinding wheel. The plastic grinding conditions and influencing factors of magnesia-aluminum spinel were explored. The high precision grinding of magnesia-aluminum spinel in plastic domain is realized. The VG401MK 鈪，

本文編號(hào)：1520868