高压涡轮盘加工工艺研究
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摘要作为航空发动机的关键部件,涡轮部件发挥着关键的作用。
因此航空发动机对其涡轮部件的要求很高。
首先,要求涡轮部件要能够承受较高的温度和负荷,所以涡轮部件的材料就必须满足高温和承受交变应力两个条件;其次,由于涡轮盘在飞机运行过程中的受热和受力极不均匀,因此必须对其各个部位应力以及温度进行研究。
除此之外,涡轮盘的冶金、制造以及性能等都十分重要,这直接关系到发动机的工作性能以及飞机的安全性和可靠性。
基于此,本文对高压涡轮盘的加工工艺进行了研究,并且对高压涡轮盘叶片的磨削加工以及军机转子的孔加工进行了深入研究,并且通过实验验证了军机转子孔加工的特征,研究工作为相关制造工艺提供了参考价值。
总结了高压涡轮盘的材料特点和工艺特征,并概述了高压涡轮盘的抗疲劳制造技术;介绍了高压涡轮盘的结构类型以及性能特点,分析了涡轮盘的工艺技术以及相应的加工方法,包括榫槽型面的加工、辐板型面的加工、精密孔的加工、涡轮盘的表面处理、涡轮盘的平衡处理、涡轮盘的无损检查等,并对典型粉末合金涡轮盘的加工工艺路线进行了分析说明;开展了高压涡轮盘难加工结构的工艺优化研究,在对轮盘车削和拉削工艺进行分析的基础上,优化了车削和拉削工艺路线,并进行了超差分析,对比了优化前后的数据;开展了高压涡轮盘的孔加工工艺研究,对某军用发动机转子孔的等级划分、相关代号以及在具体零件加工过程中的应用进行了说明,并开展了实验方案设计、实验前的基础准备以及各个工序参数确定等实验验证工作,对刀具换刀点的参数范围进行了详细分析,研究了刀具磨损程度对加工质量的影响规律。
论文通过理论结合实验的方法,选取典型粉末合金高压涡轮盘作为最终的研究对象,详细研究了其加工工艺,并且对涡轮盘加工过程中的关键工艺进行了优化分析,同时对孔加工工艺进行了重点研究,并且通过实验对孔加工的理论研究进行了验证性分析,研究工作对相关涡轮盘的制造工艺水平的提高提供了参考价值。
关键词高压涡轮盘加工工艺磨削加工孔加工ABSTRCTAs the key component of aerospace engine, turbine components play a key role. Therefore the requirement of its turbine components of aerospace engine is very high.First of all, it requires the turbine parts to be able to bear high temperature and load, so the turbine component materials must meet high temperature and under alternating stress two conditions;Secondly, because of the turbine disk in the plane running in the process of heating and force is very uneven, so we must stress and temperature to study its various parts. In addition, the turbine disc metallurgy, manufacture and performance are very important, which is directly related to the safety and reliability of the working performance of the engine and aircraft.Based on it, the research on high pressure turbinedisk processing technology in this paper, the hope can provide certain reference value for the related manufacturing process.This paper is divided into six parts. The first part is the introduction, this paper first describes the research background and research significance, research status at home and abroad and of a high pressure turbine disk processing technology are described, finally, the main research contents of this paper and research methods are described;The second part mainly on high pressure turbine disk material and process characteristics of narrative, first analyzes the characteristics of high pressure turbine disk material, and then describes the process characteristics, finally summarizes the manufacture of high-pressure turbine disk fatigue;The third part is the process design of high pressure turbine disk, which is the core of this paper, firstly the structure type of high pressure turbine disk and characteristics were explained, and then describes the process of design, then the main structure of the turbine disc and the corresponding processing method is analyzed in detail, finally aimed at processing the process route of typical powder alloy turbine disk is analyzed and explained;The fourth part is the research on grinding process of high pressure turbine disk, firstly explains how to select the grinding parameters on the grinding wheel, and then determine the grades are explained, finally analyzes the relationship between the grinding quality and grinding parameters; the fifth part is the research of holeprocessing technology of high pressure turbine disk, one of the core content of which is the military, according to rotor, first to the hole classification and the related code are described, and then explain how different levels of processing control hole, followed by a range of parameters on tool change point in detail the analysis of the different degree of wear of the tool on the processing quality of the situation;The sixth part is the conclusion and outlook, this part is the main research content of this paper, then the research direction in the future process of turbine disk was a simple prospect.The thesis use put forward the problem - research method to analysis the problem - to solve the problem, the method of practice through the combination of theory, selecting typical powder alloy high-pressure turbine disk as the research object in the end, a detailed study of the processing technology, and for the turbine disc in the process of the key craft - hole processing technology were studied, and the experiments were conducted to validate the analysis of theoretical study, to provide some reference value to related manufacturing process to improve the level of.Keywords high pressure turbine disk grinding process Drilling process目录摘要 (I)ABSTRCT (II)第一章绪论 (1)1.1研究背景及意义 (1)1.2国内外研究现状 (2)1.3主要研究内容以及研究方法 (4)1.3.1主要研究内容 (4)1.3.2主要研究方法 (5)第二章高压涡轮盘的材料及工艺特点 (7)2.1高压涡轮盘的材料 (7)2.2高压涡轮盘的工艺特点 (10)2.3抗疲劳制造概述 (11)第三章高压涡轮盘加工工艺设计 (14)3.1涡轮盘结构类型及性能特点 (14)3.2涡轮盘工艺过程设计 (16)3.2.1涡轮盘工艺技术分析 (16)3.2.2涡轮盘的典型加工工序分析 (20)3.3涡轮盘主要结构的加工方法 (21)3.3.1榫槽型面的加工 (21)3.3.2辐板型面的精加工 (21)3.3.3精密孔的加工 (22)3.3.4封严篦齿的加工 (22)3.3.5涡轮盘的表面处理 (22)3.3.6涡轮盘的平衡 (23)3.3.7涡轮盘的无损检查 (24)3.4典型粉末合金涡轮盘的主要工艺路线 (25)4 高压涡轮盘难加工结构的工艺优化分析 (27)4.1轮盘车削加工工艺优化 (27)4.1.1轮盘车削加工工艺分析 (27)4.1.2轮盘车削加工工艺优化 (29)4.1.3超差原因分析 ................................... 错误!未定义书签。