Heat Treatment of Metals ›› 2025, Vol. 50 ›› Issue (4): 317-322.DOI: 10.13251/j.issn.0254-6051.2025.04.049

• NUMERICAL SIMULATION • Previous Articles     Next Articles

Induction quenching process of 4150 rod for ball screw and optimization of coil simulation

Yang Lei, Yuan Shifeng, Hao Qingle, Li Guangyu, Wang Lujun, Wang Shengxi   

  1. China Academy of Machinery Ningbo Academy of Intelligent Machine Tool Co., Ltd., Ningbo Zhejiang 315700, China
  • Received:2024-11-11 Revised:2025-02-24 Published:2025-06-13

Abstract: Electromagnetic field-temperature field coupling mathematical model between the induction coil and the induction quenching workpiece was established by using the finite element software Ansys Maxwell. The magnetic field distribution and the temperature field distribution of the workpiece during the induction heating process were obtained, and the simulation results were verified by the induction quenching test. The results show that the induction coil can make the magnetic field gather on the surface of the quenching area of the workpiece to realize induction heating. The effect of induction heating with 3 turns coil for 10 s is the best, and the maximum temperature of the workpiece surface is about 903 ℃, which meets the design expectation. The induction quenching test results are in good agreement with the simulation results. The hardened layer depth of the screw blank is 4.6 mm, the hardness distribution is semi-saddle-shaped, and the surface hardness is significantly improved to 61.5 HRC, which meets the process requirements, indicating that the induction coil design is reasonable and the induction quenching process is appropriate. It can be applied to the production of high-precision retention ball screw blanks.

Key words: induction quenching, induction coil, finite element simulation, numerical simulation

CLC Number: