Scholarlink

<p>Shrink-fit assembly is one of the simplest and most cost-effective assembly methods, requiring only two components and having been in use for many years. The principle is based on the outer diameter of the shaft being larger than the inner diameter of the hub. This method is widely applied in industries such as automotive, aerospace, and gas and oil pipeline construction. Assembly is achieved by heating the hub, cooling the shaft, or applying mechanical force. Although this contact interface is often assumed to be ideal, in reality it contains a variety of form defects that differ in amplitude and frequency. The aim of this study is to demonstrate the importance of accounting for both form defects and interference in order to reduce manufacturing costs. Using numerical simulations with ABAQUS, samples with varying amplitudes and wavelengths of form defects, as well as different interference values. The results showed that the von Mises stress in the presence of form defects reached 450&#xa0;MPa. While it is less than 410&#xa0;MPa in the absence of a shape defect. These findings confirm the necessity of considering form defects in shrink-fit assemblies, enabling cost reduction by avoiding unnecessary surface smoothing.</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

Role of form defects in enhancing torque resistance of shrink-fit assemblies

  • 期刊论文

  • 发表日期：

    2026年2月10日

查看全文
  • Allal Bedlaoui,
  • Fadila Guerrache,
  • Madjid Hachemi,
  • Ahmed Chellil,
  • Samir Lecheb,
  • Hamza Mechakra,
  • Mamoun Fellah,
  • Soheib Allouche

摘要

Shrink-fit assembly is one of the simplest and most cost-effective assembly methods, requiring only two components and having been in use for many years. The principle is based on the outer diameter of the shaft being larger than the inner diameter of the hub. This method is widely applied in industries such as automotive, aerospace, and gas and oil pipeline construction. Assembly is achieved by heating the hub, cooling the shaft, or applying mechanical force. Although this contact interface is often assumed to be ideal, in reality it contains a variety of form defects that differ in amplitude and frequency. The aim of this study is to demonstrate the importance of accounting for both form defects and interference in order to reduce manufacturing costs. Using numerical simulations with ABAQUS, samples with varying amplitudes and wavelengths of form defects, as well as different interference values. The results showed that the von Mises stress in the presence of form defects reached 450 MPa. While it is less than 410 MPa in the absence of a shape defect. These findings confirm the necessity of considering form defects in shrink-fit assemblies, enabling cost reduction by avoiding unnecessary surface smoothing.