Experimental on the end face grinding stability of thin-walled CFRP circular cell
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摘要: 针对阵列复材管加工中的磨削稳定性问题,以单个薄壁CFRP管为研究对象,考虑到其结构特征定义切出角度和磨削作用角,开展端面磨削加工实验,分析了切出角度对磨削稳定性的影响规律,并基于磨削作用角和切出角度间的关系,进一步分析磨削速度、实际进给率、磨削深度对磨削稳定性的影响规律。结果表明:切出角度是影响磨削稳定性的主要因素,当切出角度在60°~90°时,磨削作用角较小,磨削稳定性较差;随着磨削速度的增加,磨削作用角逐渐增大,磨削稳定性呈增加的趋势;随着实际进给率的增加,磨削作用角无明显变化,磨削稳定性呈减弱后几乎不变的趋势;随着磨削深度的增加,磨削作用角逐渐减小,磨削稳定性呈减弱的趋势。Abstract: Objectives:
Aiming at the problem of grinding stability in the processing of CFRP circular cell honeycomb.
(Objectives: Aiming at the problem of grinding stability in the processing of CFRP circular cell honeycomb. )
Methods:
taking a single thin-walled CFRP circular cell as the research object, the end face grinding experiment was carried out by defining the exit angle and interaction angle of grinding considering its structural characteristics. Based on the relationship between interaction angle of grinding and exit angle, the effects of grinding speed, feed rate and grinding depth on grinding stability were further analyzed.
(Methods: taking a single thin-walled CFRP circular cell as the research object, the end face grinding experiment was carried out by defining the exit angle and interaction angle of grinding considering its structural characteristics. Based on the relationship between interaction angle of grinding and exit angle, the effects of grinding speed, feed rate and grinding depth on grinding stability were further analyzed.)
Results:
The results show that the exit angle is the main factor affecting the grinding stability. When the exit angle is from 60° to 90°, the interaction angle of grinding is small and the grinding stability is poor. With the increase of grinding speed, the interaction angle of grinding increases gradually, and the grinding stability increases. With the increase of feed rate, the interaction angle of grinding has no obvious change, and the grinding stability is almost unchanged after decreasing. With the increase of grinding depth, the interaction angle of grinding decreases gradually, and the grinding stability decreases.
(Results: The results show that the exit angle is the main factor affecting the grinding stability. When the exit angle is from 60° to 90°, the interaction angle of grinding is small and the grinding stability is poor. With the increase of grinding speed, the interaction angle of grinding increases gradually, and the grinding stability increases. With the increase of feed rate, the interaction angle of grinding has no obvious change, and the grinding stability is almost unchanged after decreasing. With the increase of grinding depth, the interaction angle of grinding decreases gradually, and the grinding stability decreases.)
Conclusions:
The research results have a guiding significance for the maintenance of stability of the end face grinding of CFRP circular cell honeycomb.
(Conclusions: The research results have a guiding significance for the maintenance of stability of the end face grinding of CFRP circular cell honeycomb.)-
Key words:
- CFRP /
- end face grinding /
- thin wall and weak stiffness /
- grinding stability
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