Scholarlink

<p>Nickel-based superalloys find extensive application in the aerospace industry due to their exceptional mechanical and physical properties. However, these superalloys are characterized by high cutting strength and significant cutting deformation, making them typical difficult-to-machine materials. In conventional turning (CT), the high cutting forces and temperatures result in rapid tool wear, posing challenges in maintaining machining quality. Ultrasonic-assisted turning (UAT) offers a promising solution to these challenges by enhancing machining performance. Despite this potential, research specifically focused on the UAT of cast superalloy K4169 remains unexplored. Therefore, further investigation into the ultrasonic machining performance of this material is necessary. This paper analyzes the motion characteristics of UAT and evaluates its impact on cutting forces, surface quality, and tool wear mechanisms. The results demonstrate that UAT significantly reduces radial and tangential cutting forces by 54.9 and 55.1%, respectively, compared to CT. Additionally, UAT produces more regular surface textures, reduces defects, and lowers surface roughness as ultrasonic amplitude increases. Tool wear is also markedly diminished under UAT conditions. These findings suggest that ultrasonic-assisted machining can effectively improve the machinability of cast superalloy K4169, leading to improved machining quality and reduced costs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on the cutting performance of ultrasonic-assisted turning for cast superalloy K4169

  • 期刊论文

  • 发表日期：

    2025年2月19日

查看全文
  • Renke Kang,
  • Shenghao Chao,
  • Jiansong Sun,
  • Jinchuan Luan,
  • Zhigang Dong,
  • Yidan Wang

摘要

Nickel-based superalloys find extensive application in the aerospace industry due to their exceptional mechanical and physical properties. However, these superalloys are characterized by high cutting strength and significant cutting deformation, making them typical difficult-to-machine materials. In conventional turning (CT), the high cutting forces and temperatures result in rapid tool wear, posing challenges in maintaining machining quality. Ultrasonic-assisted turning (UAT) offers a promising solution to these challenges by enhancing machining performance. Despite this potential, research specifically focused on the UAT of cast superalloy K4169 remains unexplored. Therefore, further investigation into the ultrasonic machining performance of this material is necessary. This paper analyzes the motion characteristics of UAT and evaluates its impact on cutting forces, surface quality, and tool wear mechanisms. The results demonstrate that UAT significantly reduces radial and tangential cutting forces by 54.9 and 55.1%, respectively, compared to CT. Additionally, UAT produces more regular surface textures, reduces defects, and lowers surface roughness as ultrasonic amplitude increases. Tool wear is also markedly diminished under UAT conditions. These findings suggest that ultrasonic-assisted machining can effectively improve the machinability of cast superalloy K4169, leading to improved machining quality and reduced costs.