一种基于半空心铆钉的两段式机械‑固相复合连接方法，通过将半空心铆钉与固连模具的驱动头同轴设置且铆钉盖上凹槽与驱动头的凸台相啮合，设置驱动头驱动驱动铆钉在工艺第一阶段以高速旋转、低速进给的方式铆入待连接材料；在第二阶段内停止旋转铆钉，并以较高速率进给，避免热量在铆钉附近过度累积，提升铆接力，使铆钉底端在待连接材料变形阻力的作用下向外撑开，形成机械互锁，同时在铆钉快速进给的挤压作用下，接头中铆钉‑工件、工件‑工件之间各界面间隙被消除，界面在高温下通过热扩散形成固相连接，本发明能够显著提升机械连接的干涉互锁效果，并在铆钉与工件、工件与工件之间形成固相连接，获得机械‑固相复合接头。

The invention relates to a two-stage mechanical solid-phase composite connection method based on a semi hollow rivet. By setting the semi hollow rivet coaxially with the driving head of the fixed connection die, and the groove on the rivet cover engages with the boss of the driving head, the driving head is set to drive the driving rivet to rivet the material to be connected in the way of high-speed rotation and low-speed feed in the first stage of the process; In the second stage, stop rotating the rivet and feed at a relatively high rate to avoid excessive accumulation of heat near the rivet, improve the riveting force, so that the bottom end of the rivet is stretched outward under the deformation resistance of the material to be connected to form a mechanical interlock. At the same time, under the extrusion of the rapid feed of the rivet, the interface gap between the rivet workpiece and the workpiece workpiece in the joint is eliminated, The interface forms a solid-phase connection through thermal diffusion at high temperature. The invention can significantly improve the interference interlocking effect of mechanical connection, form a solid-phase connection between rivet and workpiece and between workpiece and workpiece, and obtain a mechanical solid-phase composite joint.