不锈钢薄壁法兰加工技术研究
刘蔚豪，刘春梅
（中国工程物理研究院 电子工程研究所，四川 绵阳 621900）
摘要：不锈钢薄壁零件在加工中由于自身刚度较差极易发生变形，因材料韧性好难以断屑、冷却不充分、切削余量较大、刀具磨损严重、粗加工对法兰变形影响较大等因素，造成实际加工中成品率低、难以保证加工质量和生产效率等问题。本文研究了该类零件的加工工艺路径。首先，详细分析了该类零件的典型加工要求，并在此基础上叙述了调研收集得到的实际生产中针对该型零件的三种常见的加工工艺路线；然后对各种工艺方案进行试验研究，针对某薄壁法兰的不同加工方法，如提出合理安排加工顺序，隔离变形区域，提高工艺系统刚性，采用纵向切削、车铣复合相结合，一次加工成型的工艺方案。试验结果表明，该方案有效解决了加工变形和切屑缠绕问题，提高了加工质量和效率。
关键词：薄壁法兰；车削；刚性；变形；缠屑；工艺路线
中图分类号：TG506 文献标志码：A doi：10.3969/j.issn.1006-0316.2022.04.005
文章编号：1006-0316 (2022) 04-0025-06
Processing Technology of Thin-Walled Stainless Steel Flange
LIU Weihao，LIU Chunmei
( Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621900, China )
Abstract：Thin-walled stainless steel parts are prone to deformation during mechanical processing due to their poor rigidity. Meanwhile, flange deformation can also be caused by the factors of material toughness, chip breaking property, insufficient cooling, large cutting margins, severe tool wear, and rough machining. In actual processing, the yield is low, and it is difficult to guarantee the processing quality and production efficiency. It is a type of typical difficult-machining parts. Aiming at solving the above problems, this paper studies the processing path by conducting experimental research on various process schemes. Based on the different processing methods of a thin-walled flange, a reasonable processing sequence is proposed, the deformation area is isolated, the rigidity of the process system is improved, and the combination of longitudinal cutting, turning and milling is used to form a process plan at one time. The results show that the method effectively solves the problems of processing deformation and chip winding, and improves the processing quality and efficiency.
Key words：thin-walled flange；turning；rigidity；deformation；wrapped chips；process route
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收稿日期：2021-07-12
作者简介：刘蔚豪（1986－），男，四川大邑人，高级工，主要从事不锈钢薄壁零件加工、抛光及有色金属高精密内孔加工、电镀抛光等工作，E-mail：405590782@qq.com。
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