电解加工整体叶轮（毕业论文）.doc

常州工学院机电工程学院毕业论文 PAGE 23 设计说明书 摘要：由于整体叶轮叶片工作表面为空间自由曲面，形状复杂，精度要求高，同时为适应高温、高压、高转速的工作条件，通常选用钛合金、硬质合金等高性能材料。这些材料极难切削，使得其加工又成为世界级的技术难题。电解加工与数控技术相结合的数控电解磨削加工技术，能综合发挥计算机数控和电解加工的技术优势。利用PowerMill软件设计刀具路径，并通过此软件自动生成程序。这在材料难切削、叶片形状复杂的整体叶轮制造中显示了其优势所在。 关键词：硬质合金 电解加工 电解磨削 优势 Abstract：The surface of integral impeller blades is free-form. The shape is complex, and it also has high precision. And in order to adapt to the working conditions with high temperature, high pressure, high speed, we usually choose high performance materials, for example, Titanium alloy and Hard alloy. These materials are extremely difficult to cut, so the processing has become a world-class technical problems. Electrochemical machining with CNC technology combined with the CNC Electrochemical Grinding Technology can play a computer numerical control, and integrated the technological advantages of ECM. Using PowerMill software to design tool the path and generating program automatically by the software. cutting materials difficulty and the complexity of the overall shape of the impeller blade manufacturing shows its advantage. Key words：Hard alloy ECM Electrolytic grinding advantage 目录 摘要……………………………………………………………………………………………1 Abstract………………………………………………………………………………………1 第一章 绪论………………………………………………………………………………… 4 1.1整体叶轮加工的基本概况…………………………………………………………… 4 1.2整体叶轮的加工方法………………………………………………………………… 4 1.3电解加工的概况……………………………………………………………………… 5 1.3.1电解和电解加工…………………………………………………………………5 1.3.2电解磨削的基本原理和特点……………………………………………………6 1.3.3电解加工的发展和应用…………………………………………………………6 1.4电解参数的选择原则………………………………………………………………… 7 1.4.1电解参数的影响…………………………………………………………………7 1.4.2电解液的选择……………………………………………………………………8 1.4.3工艺参数的选择原则……………………………………………………………9 1.4.4加工材料介绍及性能……………………………………………………………9 第二章 数控电解磨削加工的基础设备……………………………………………………10 2.1数控电解机械复合铣削加工的试验设备……………………………………………10 2.1.1五轴数控电解机械复合加工机床本体……………………………………… 10 2.1.2五轴数控电解机械复合铣削加工机床的防护系统设计…………………… 11 第三章 电解参数的设定……………………………………………………………………12 3.1 开粗加工参数…………………………………………………