Heat Treatment of Metals ›› 2025, Vol. 50 ›› Issue (1): 236-242.DOI: 10.13251/j.issn.0254-6051.2025.01.037

• NUMERICAL SIMULATION • Previous Articles     Next Articles

Optimization of induction heating process for ball screw based on finite element analysis

Li Mingzhe, Chen Baofeng, Zhang Wenliang, Sun Lizhuang, Zhang Lun, Liu Junjie   

  1. China Academy of Machinery Beijing Research Institute of Mechanical & Electrical Technology Co., Ltd., Beijing 100083, China
  • Received:2024-09-11 Revised:2024-12-04 Online:2025-01-25 Published:2025-03-12

Abstract: In order to optimize the induction heating process of ball screw and improve the uniformity of its surface temperature distribution, thereby improving its manufacturing precision and performance, a finite element model was constructed by means of electromagnetic simulation software to analyze the influence of different process parameters on the surface temperature distribution of the ball screw during both static and dynamic induction heating. The results show that an excessively small internal diameter of the induction coil results in a narrow gap between the workpiece and the coil, which can easily lead to overheating of the workpiece surface. Conversely, an excessively large internal diameter results in a wide gap, reducing heating efficiency and resulting in a shallow heating layer. Therefore, selecting an induction coil with an appropriate internal diameter is essential for ensuring the quality of heating. The double-turn coil demonstrates superior performance in terms of heating efficiency and temperature uniformity. Employing high voltage and an appropriate current frequency can improve heating efficiency and control the depth of heating layer. For dynamic heating, a scanning speed of 6-10 mm/s is recommended to achieve a balance between heating efficiency and process stability.

Key words: ball screw, GCr15 steel, induction heating, finite element analysis

CLC Number: