A Method for Thickness Control of Aircraft Structural Parts with Thin Webs Based on On-The-Machine Measurement

Abstract:

Pockets are widely applied in the design of the aircraft structural parts. For achieving aggressive weight targets, pockets are always designed by thin walls and webs. When machining a pocket, the web is created at the face of the end mill, as opposed to ribs, which are created at the periphery of the end mill. However, difficulty exists for control the thickness tolerance when machining these thin-webs. In this paper, the on the machine measurement technology is adopted to help control the thickness accuracy of thin webs. A typical part is taken to illustrate the proposed method and test results show that the proposed method efficiently improves the machining accuracy of thin webs.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 280-283
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.280
• Online since: July 2013
• Authors: Yu Peng, Wen Ping Mou
• Keywords: On-the-Machine Measurement, Post Process, Thickness Accuracy Control, Thin-Web

References

[1] LI Hua-rui, Processing of Certain Type of Aircraft Ultra-thin Web Parts, TOOL ENGINEERING, 2012 46(7).

[2] ZHANG Hong-zhou, Rong Bin, etc, Deformation Control Analysis of NC Machining for Aircraft Aluminun Alloy Integrated Structure Part, Aeronautical Manufacturing Technology , 2012 (12).

[3] WU Kai, He Ning, etc, Study on Machining Deformations and Their Control Approaches of the Thin-web in End Milling, CHINA MECHANICAL ENGINEERING , 2004 15(8).

[4] LI Wen-jie, Aircraft structure parts NC machining technology and typical cutting parameter study, Manufacturing Automation , 2012 34(2).