The joining of dissimilar materials is a widely used procedure with applications in many industries. While laser welding of such materials has gained traction interest recent years, this has intrinsic limitations, especially considering harsh requirements including surface roughness and weak bonding strength. This paper proposes a novel method to join Al6082 and SiO₂ using a femtosecond laser to substantially reduce the requirements of material surface roughness and improve bonding strength. The proposed method involves drilling, ejection, filling and solidification, which results in forming a mechanical pin structure with some adhesive regions between Al6082 and SiO₂, ensuring the two materials lock tightly. Besides, a significant tolerance of approximately 2 mm for focal positions was identified, overcoming the limitation of sensitivity of focus position in laser welding. Furthermore, over 100 MPa shear strength of Al6082-SiO₂, which was comparable to the tensile strength of the aluminum alloy, was achieved. The proposed method provides a novel technique to improve the quality of products and facilitate the manufacturing process for joining dissimilar materials.

异种材料的连接是一种广泛使用的程序，在许多行业都有应用。虽然这种材料的激光焊接近年来引起了人们的兴趣，但这具有内在的局限性，特别是考虑到包括表面粗糙度和弱结合强度在内的苛刻要求。本文提出了一种使用飞秒激光连接Al6082和SiO ₂的新方法，以大幅降低对材料表面粗糙度的要求，提高结合强度。所提出的方法涉及钻孔、顶出、填充和固化，从而形成机械针结构，在 Al6082 和 SiO _{2之间具有一些粘合区域}，确保两种材料锁紧。此外，确定了约 2 mm 的焦点位置的显着公差，克服了激光焊接中焦点位置灵敏度的限制。此外，Al6082-SiO ₂的剪切强度达到了 100 MPa 以上，与铝合金的抗拉强度相当。所提出的方法为提高产品质量和促进连接不同材料的制造过程提供了一种新技术。