钛合金小螺纹数控铣削加工技术的应用  

Application of NC Milling Technology for Small Thread of Titanium Alloy

作　　者：汪一鸣 黄泽金 WANG Yiming;HUANG Zejin(Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang 621000,China)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621000

出　　处：《新技术新工艺》2023年第10期13-16,共4页New Technology & New Process

摘　　要：钛合金因具有耐高温、强度高、耐腐蚀性好、密度小、组织稳定性好,有良好的韧性、塑性和高温抗变形性能等显著优点而被广泛应用在军事、科技、航空、航天、生物医学等领域。但因材料自身的难加工特性导致钛合金零件上的小螺纹孔加工尤为困难。针对钛合金小螺纹(M1.6)的铣削加工方案进行优化改进,通过切削参数的优化、小螺纹刀具的改进、冷却液的合理匹配,成功解决了钛合金零件小螺纹传统加工方式效率低、加工过程易出现丝锥折断等技术难题,并将单只螺纹铣刀的刀具寿命提高至可加工300个螺纹孔的国内先进水平,成功实现了刀具寿命和加工效率双重提升,在实际生产应用中取得了良好的效果。Because of high temperature resistance,high strength,good corrosion resistance,low density good structure stability,good toughness,plasticity and high temperature deformation resistance,the titanium alloy has been widely used in military,science and technology,aviation,aerospace,biomedicine and other fields.However,it was very difficult to machine the small thread holes on the titanium alloy parts because of the difficult machining characteristics of the materials themselves.The milling process of titanium alloy small thread(M1.6)was optimized by optimizing the cutting parameters,improving the small thread cutting tools and matching the coolant reasonably,it successfully solved the technical problems of low efficiency in the traditional processing of small thread of titanium alloy parts including tap breaking,etc.,the tool life of single thread milling cutter was raised to the domestic advanced level of 300 thread holes,and the tool life and machining efficiency were both enhanced.It achieved good results in the practical production and application.

关 键 词：钛合金 小直径螺纹铣削 刀具选型 切削液 刀具角度 

分 类 号：TH162[机械工程—机械制造及自动化]