本文選題：特征溫度 + 切削溫度��； 參考：《機床與液壓》2017年17期

【摘要】：通過硬質(zhì)合金刀具車削氟金云母陶瓷實驗,研究可加工陶瓷切削溫度。以特征溫度表征切削溫度研究氟金云母可加工陶瓷車削加工中的切削溫度。結(jié)果表明,特征溫度隨轉(zhuǎn)速的變化幅度小;隨著進給速度增大,特征溫度整體上是下降的,并且進給速度在0.1~0.12 mm/r間,特征溫度下降幅度較大;在特征溫度隨著切削深度增加而增加的過程中,存在一個下降階段,而且下降階段結(jié)束后,特征溫度增長幅度變大。同一工藝參數(shù)下隨切削次數(shù)的增加,測得的特征溫度升高,其原因是:每次切削中,摩擦熱主導溫度變化,隨切削次數(shù)的增加,刀具磨損量增大,特征溫度升高。由于陶瓷低導熱性和脆性,切削溫度振顫不明顯。
[Abstract]:The cutting temperature of machinable ceramics was studied by turning fluorophlogopite ceramics with cemented carbide tools. The cutting temperature was characterized by characteristic temperature. The cutting temperature of fluorophlogopite machinable ceramics was studied. The results show that the characteristic temperature changes slightly with the speed of feed, and decreases with the increase of feed speed, and when the feed speed is between 0.1 and 0.12 mm/r, the drop of characteristic temperature is larger. In the process of increasing the characteristic temperature with the increase of cutting depth, there exists a descending stage, and the amplitude of characteristic temperature increases after the end of the falling stage. The measured characteristic temperature increases with the increase of cutting times under the same technological parameters. The reason is that the friction heat dominates the temperature in each cutting, and with the increase of cutting times, the tool wear quantity increases and the characteristic temperature increases. Due to the low thermal conductivity and brittleness of ceramics, the cutting temperature tremor is not obvious.
【作者單位】： 東北大學秦皇島分�？刂乒こ虒W院;東北大學機械工程及自動化學院;
【基金】：國家自然科學基金資助項目(51275083)
【分類號】：TQ174.6
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本文編號：1939304