航空铝合金高薄缘条类零件数控加工策略优化

Optimization of CNC Machining Strategy of Aviation Aluminum Alloy High and Thin Edge Strip Parts

铝合金高薄缘条类零件是航空飞行器的重要结构组成部分,但该类零件的加工存在振颤等问题,影响加工质量。因此,对传统加工工艺中高薄缘条类零件发生加工振颤的原因和影响因素进行分析,并提出一种新的加工策略,以有效改变高薄缘条的受力与约束状态,达到降低数控加工变形的目的。通过虚拟仿真实验模拟加工过程,对所提出的加工策略进行实验验证。通过对实物进行加工,检测结构尺寸和表面粗糙度,检验改进后方案的加工效果。测试结果表明,该方案能够有效解决铝合金高薄缘条类零件在数控铣削过程中出现的加工振颤问题,提高了加工质量与效率。

Aluminum alloy high and thin edge strip parts are an important structural component of aviation aircraft,but the process of such parts has processing tremor and other problems,which affect the processing quality.The causes and influencing factors of machining tremor of high-thin edge strip parts in the traditional machining technology are analyzed,and a new processing strategy is proposed to effectively change the force and constraint state of high-thin edge strips and achieve the purpose of reducing the deformation of CNC machining.The processing process is simulated through virtual simulation experiments,and the proposed processing strategy is tested and verified.The physical processing is carried out,and the processing effect of the improved scheme is verified through the structural size and surface roughness detection.The test results show that the scheme can effectively solve the machining tremor problem of aluminum alloy high and thin edge strip parts in the CNC milling process,and improve the processing quality and efficiency.