摘要: |
针对航天箭体用薄壁结构因具备弱刚性特征,更易产生尖啸噪声,会对工人的身体和心理造成严重危害,讨论了机械加工噪声的产生原因和影响因素,并从参数设置、刀具选用、工装使用等方面归纳了抑制噪声的方法,以期为工业企业机械加工噪声的防治提供解决思路。在此基础上,对复合材料构件的机械加工噪声、磨削噪声的产生与防治、降噪工装设计等方面的研究前景进行了展望。 |
关键词: 机械加工;职业危害;噪声 |
基金项目: |
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Machining Noise Analysis and Prevention of Thin-walled Structures for Space Rockets |
Fang Kaiyue Wang Xin Yi Meijun Geng Li
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Aerospace Research Institute of Materials & Processing Technology, Beijing 100076
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Abstract: |
With the vigorous development of China’s aerospace manufacturing industry, high-precision, lightweight, large-size thin-walled structural parts have become the mainstream products in the field of space rockets manufacturing. However, during the machining process, the thin-walled structures for space rockets are more susceptible to generate squeal due to their weak rigidity characteristics, which can cause physical and psychological hazards to workers. In this paper, we discuss the causes and influencing factors of machining noise for thin-walled structures, and summarizes the methods to suppress noise from parameter setting, machining tool selection, tooling fixtures using, etc., with a view to providing solutions for the prevention and control of machining noise in industrial enterprises. On this basis, the research prospects of machining noise of composite components, the generation and prevention of grinding noise, and the design of noise-reducing tooling fixtures are prospected. |
Key words: machining;occupational hazards;noise |