一种高硬度复杂薄壁翼片的机械加工工艺设计
Design of Mechanical Processing Technology for a High Hardness Complex Thin-walled Wing
刘强 1孙建邦 1闫冰 1张永智 1孙韶渝 1李佳1
作者信息
- 1. 西安现代控制技术研究所,陕西 西安 710065
- 折叠
摘要
一种高硬度复杂薄壁翼片目前没有高速铣削的加工手段可利用,需要普通铣削结合真空炉处理的方式来满足产品技术要求,加工难度大,生产进度紧.通过工艺攻关、工艺优化形成了翼片的机械加工工艺方案,采用普通铣削后进行真空炉淬火的方式保证翼片角度、厚度、孔径和力学性能要求,最后用电火花切割的方式将工件与工艺台分离保证翼轴孔距和外形尺寸.结合真空炉处理和电火花切割的特点,及时处理了加工过程中出现的热处理变形、切割外形导致孔距超差等技术问题,最终保证首批次合格产品按进度交付.所涉及到的翼片工艺方案、工艺台、定位基准选择、控制热处理变形的工装、电火花切割工装等内容属于西安现代控制技术研究所首次应用,具有创新性,对于弹体结构件中技术要求较高的翼片及同类结构的零件有一定的参考价值.
Abstract
Currently,there was no high-speed milling method available for a high hardness complex thin-walled wing,which required a combination of ordinary milling and vacuum treatment to meet the technical requirements of the product,so the processing difficulty was high,and the production schedule was tight.Through process research and optimization,it was formed that a mechanical machining process plan for the wing.By using the method of vacuum furnace quenching after ordinary milling,the angle,thickness,aperture,and mechanical performance requirements of the wing were ensured.Final-ly,the workpiece was separated from the process table by electric discharge cutting to ensure the distance between the wing shaft holes and the external dimensions.By combining the characteristics of vacuum furnace treatment and electric discharge cutting,technical problems such as heat treatment deformation and cutting shape that causing hole pitch deviation during the processing were promptly addressed,ultimately ensured the delivery of the first batch of qualified products on schedule.The wing process scheme,process table,positioning reference selection,tooling for controlling heat treatment deformation,and electrical discharge cutting tooling involved were the first applications within Xi'an Modern Control Technology Research In-stitute,which were innovative and had certain reference value for wings with high technical requirements in missile structur-al components and components of similar structures.
关键词
复杂薄壁翼片/高硬度/工艺设计/真空炉处理/变形控制/工艺优化Key words
complex thin-walled wings/high hardness/process design/vacuum furnace treatment/deformation con-trol/process optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据