Study on Ultrasonic Vibration Precision Machining Technology of Aircraft Fastener Holes

Abstract

Abstract:

A kind of ultrasonic drill-reaming-countersink machining method and rotary ultrasonic vibration drilling tool system were proposed and developed,in order to solve a series of problems,such as long machining process route,low machining quality and low tool life for traditional manual multi-step drilling fastener

holes on CFRP and titanium alloy stacks of aircraft skin.Experiments show that ultrasonic machining tools and method can obviously improve the quality and the processing efficiency of fastener big holes on CFRP and titanium alloy stacks and lower the production cost to satisfy the aircraft assembly industry requirements. 

Key words: CFRP(carbon fiber reinforced plastic) and titanium alloy stacks, machining method, drilling tool, ultrasonic vibration, core drill, reaming

摘要：

针对飞机蒙皮复合材料与钛合金叠层(简称复钛叠层）紧固件大孔传统手工多步制孔加工中存在的工艺路线长、加工质量不高、刀具寿命低等问题,开展了超声精密制孔技术的研究,提出了超声振动套-铰-锪的新工艺方法,并研制了超声振动制孔工具系统。实验结果表明,超声振动套-铰-锪新工艺方法及振动制孔工具系统可以高质、高效、低成本加工复钛叠层紧固件大孔,能满足飞机复钛叠层紧固孔精密装配的工业要求。

关键词:

复钛叠层, 工艺方法, 制孔工具, 超声振动, 套料钻, 铰削



CLC Number:

V262.4

ZHANG De-Yuan, LIU Jing.

Study on Ultrasonic Vibration Precision Machining Technology of Aircraft Fastener Holes

[J]. China Mechanical Engineering, 2012, 23(4): 421-424.

张德远, 刘静.

飞机紧固孔超声振动精密加工技术研究

[J]. 中国机械工程, 2012, 23(4): 421-424.

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