摘要
针对高温合金材料的螺纹铣削加工,分析了切削厚度的表达方法,建立了相邻两次走刀形成的截面积的表达方法。在此基础上,研究了高温合金螺纹铣削过程中的铣削力和扭矩,结果表明:螺纹铣削时,铣削力及扭矩与截面积呈正相关。提出了通过使螺纹粗精加工过程中每次走刀的截面积相等,进而优化高温合金螺纹铣削径向切深的加工策略。该策略可有效控制切削力值和扭矩值,这不仅有利于提高刀具寿命和加工精度,亦为制定难加工材料螺纹铣削工艺提供了依据。
To study the thread milling of superalloy,the definition and expression of uncut chip thickness are proposed,and the expression method of section area between two passes is introduced.On the basis of these concepts,the thread milling cutting force and torque of superalloy are studied.The result shows that thread milling cutting force and torque are positively related to section area.In the process of superalloy thread milling,the radial depth of cut is optimized by the same section area at every cutting step.The optimization method of cutting force and torque can improve part precision and tool life,and can be the theoretical basis for processing technology of thread milling of difficult-to-machine material.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2014年第5期707-712,共6页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
螺纹铣削
切削力优化
扭矩
切削厚度
截面积
thread milling
cutting force optimization
torque
uncut chip thickness
section area
