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| The wear analysis of precision blasting die for aviation blades based on orthogonal test |
| LI Yan-kui1, LÜ Yan-ming1, NI Ming-ming2 |
1. School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China;
2. Wuxi Turbine Blade Co., Ltd., Wuxi 214023, China |
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Abstract Aiming at the problems such as the low design efficiency of aviation blade die, serious wear and difficulty in parameters correction, based on UG/Open API, the die CAD system was developed by analysis of the blade die design process, and the parametric design of die was realized and die design efficiency was improved. Based on Archard correction theory, the influence of die design parameters on the precision forging of the blade was simulated by Deform-3D software. The influence of forging speed, the forming angle and the thickness of the bridge on the wear and life of the blade were analyzed by orthogonal test. The optimal combination parameters beneficial to extend the die life were determined and the design rules of them were optimized. It was accurate and simple to make the die design parameters be determined. Through the engineering experiment, the die wear and life were analyzed and the results were in good agreement with the simulation results. It is of great significance to optimize the design and wear analysis of air forging die.
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Received: 31 May 2017
Published: 28 December 2017
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基于正交试验的航空叶片精锻模具磨损分析
针对航空叶片模具设计效率低、磨损严重、参数修正困难等问题，在对叶片模具设计过程分析的基础上，基于UG/Open API技术开发了模具CAD系统，实现了模具参数化设计，提高了模具设计效率；基于Archard修正理论，借助Deform-3D软件就模具设计参数对叶片精锻成形的影响进行仿真模拟，通过正交试验分析了锻压速度、成形角度、桥部厚度对叶片模具磨损与寿命的影响，得出了有益于延长模具寿命的最优工艺组合参数，并对该组合参数的设计规则进行了优化，使得模具设计参数的确定更加精确、简单；通过工程实例，对模具磨损与寿命进行了分析，得出试验结果与模拟结果具有较好的一致性。研究结果对航空叶片精锻模具优化设计与磨损分析具有重要的指导意义。
关键词：
航空叶片模具,
模具CAD系统,
模具磨损,
正交试验,
参数优化
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