阶梯钻超声振动钻削Inconel718有限元仿真研究  

Inconel718 finite element simulation research on ultrasonic vibration drilling of step drill

作　　者：王宙彪 周俊 WANG Zhoubiao;ZHOU Jun(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海市201620

出　　处：《农业装备与车辆工程》2023年第10期147-150,164,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：针对高温合金Inconel718在使用麻花钻常规钻削(CD)时轴向力过大、切屑连续不易排出、孔壁加工质量较差等问题,引入一种改进型刀具阶梯钻,利用有限元仿真软件DEFORM-3D研究阶梯钻常规钻削(CD)和超声振动钻削(UAD)Inconel718的过程。结果表明:相比麻花钻,阶梯钻常规钻削轴向力降低了9.4%,孔壁能量损伤值降低了19.6%;阶梯钻超声振动钻削轴向力降低了56%,孔壁能量损伤值降低了42.7%,且产生的切屑更易排出,极大地提高了钻削性能和加工质量。Aiming at the problems of excessive axial force,continuous chips that are difficult to discharge,and poor machining quality of hole wall when using twist drill for conventional drilling(CD)of superalloy Inconel718,an improved tool step drill was introduced,and the finite element simulation software DEFORM-3D was used to study the process of step drilling conventional drilling(CD)and ultrasonic vibration drilling(UAD)Inconel718.The results showed that compared with twist drill,the axial force of conventional drilling(CD)of step drill was reduced by 9.4%,and the energy damage value of hole wall was reduced by 19.6%;the axial force of ultrasonic vibration drilling(UAD)of step drill was reduced by 56%,the energy damage value of the hole wall was reduced by 42.7%,and the generated chips were easier to discharge,which greatly improved the drilling performance and processing quality.

关 键 词：阶梯钻 超声振动钻削 有限元仿真 INCONEL718 

分 类 号：TG52[金属学及工艺—金属切削加工及机床]