Scholarlink

<p>Joining sheets along a curve, namely curved joining, has wide applications in industry. In this paper, two layers of aluminum foil with and without adhesive and a pre-slotted stainless steel sheet are curve-joined by incremental laser shock clinching. The effects of process parameters on curved adhesive-clinched joints are investigated through experiments and simulations, including the adhesive curing time, the laser spot overlap rate, the slot curvature radius, and the slot length. The results show that laser shock after the adhesive is fully cured contributes to the high quality of the joint. A laser spot overlap rate of 33.3% yields the smoothest surface, while a high overlap rate of 44.4% results in joint damage. Curvature radii of 5, 7, and 9&#xa0;mm are feasible for a slot arc length of 10&#xa0;mm and a slot width of 2&#xa0;mm, while a 3-mm curvature radius results in material damage at the joint ends. Curved joints exhibit greater interlock on the inner side (~ 52.9&#xa0;μm) than the outer side (~ 31.8&#xa0;μm) due to different arc lengths, while linear joints show uniform interlock values (~ 43.9&#xa0;μm) on both sides. This asymmetry can be mitigated by offsetting the laser scanning path outward. Tensile shear tests show similar peak loads for the End, Outer, and Inner specimens in “20-30/Steel” (17.3 N, 19.3 N, 16.3 N) and “Steel-20/30” (25.5 N, 24.5 N, 22.9 N). Pull-off failure occurs in “Steel-20/30,” with the Inner specimen achieving the highest strength (19.6 N) and the Outer specimen the lowest (5.1 N), highlighting the critical role of interlock values in joint performance.</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

Curved joining of ultra-thin aluminum foils and stainless steel sheets by incremental laser shock clinching

  • 期刊论文

  • 发表日期：

    2025年8月15日

查看全文
  • Yaxuan Hou,
  • Ying Gao,
  • Zhong Ji,
  • Guoxin Lu

摘要

Joining sheets along a curve, namely curved joining, has wide applications in industry. In this paper, two layers of aluminum foil with and without adhesive and a pre-slotted stainless steel sheet are curve-joined by incremental laser shock clinching. The effects of process parameters on curved adhesive-clinched joints are investigated through experiments and simulations, including the adhesive curing time, the laser spot overlap rate, the slot curvature radius, and the slot length. The results show that laser shock after the adhesive is fully cured contributes to the high quality of the joint. A laser spot overlap rate of 33.3% yields the smoothest surface, while a high overlap rate of 44.4% results in joint damage. Curvature radii of 5, 7, and 9 mm are feasible for a slot arc length of 10 mm and a slot width of 2 mm, while a 3-mm curvature radius results in material damage at the joint ends. Curved joints exhibit greater interlock on the inner side (~ 52.9 μm) than the outer side (~ 31.8 μm) due to different arc lengths, while linear joints show uniform interlock values (~ 43.9 μm) on both sides. This asymmetry can be mitigated by offsetting the laser scanning path outward. Tensile shear tests show similar peak loads for the End, Outer, and Inner specimens in “20-30/Steel” (17.3 N, 19.3 N, 16.3 N) and “Steel-20/30” (25.5 N, 24.5 N, 22.9 N). Pull-off failure occurs in “Steel-20/30,” with the Inner specimen achieving the highest strength (19.6 N) and the Outer specimen the lowest (5.1 N), highlighting the critical role of interlock values in joint performance.