γ–TiAl金属间化合物加工的国内外研究现状  

Research Status of Machining γ–TiAl Intermetallic Compounds Both in China and Overseas

作　　者：廖阳稷敛 顾琳[1] 刘苏毅 何国健 LIAO Yangjilian;GU Lin;LIU Suyi;HE Guojian(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院

出　　处：《航空制造技术》2020年第4期22-33,共12页Aeronautical Manufacturing Technology

基　　金：国家自然科学基金(51575351,51975371)

摘　　要：介绍了γ–TiAl金属间化合物的主要特点。塑韧性较差、导热率较低等特点是导致加工γ–TiAl时切削温度高、切削力大和加工表面质量差的主要因素。从工具寿命、加工效率和加工表面质量等几方面对γ–TiAl金属间化合物的典型机械加工和特种加工方法进行了总结。认为磨削、高速铣削和电解加工是现阶段加工γ–TiAl比较适用的加工方法,但仍缺乏能兼顾效率、成本和表面质量的加工工艺。The main characteristics of gamma–TiAl intermetallic compounds were introduced. Poor plasticity and tenacity, low thermal conductivity are the main factors that lead to high cutting temperature, high cutting force and poor surface quality. The typical machining and non-traditional machining methods of gamma–TiAl intermetallic compounds were summarized from the aspects of tool life, machining efficiency and surface quality. And we consider that grinding and electrochemical machining are suitable machining methods at present. However, there is still a lack of processing technology that can give consideration to efficiency, cost and surface quality.

关 键 词：γ–TiAl 金属间化合物 加工性能 加工效率 表面质量 

分 类 号：TG146.23[一般工业技术—材料科学与工程]