| 摘要 |
<p>The invention relates to a punch rivet (30) for connecting two workpieces (12, 14), with a head (32) and a shank (34), the shank (34) being embodied as a hollow shank having a shank internal diameter (D3), a shank external diameter (D1) and a shank end face, there being embodied at the shank end face an annular cutting edge (50), the diameter (D4) of which is smaller than the shank external diameter (D1), and the shank internal diameter (D3) merging with the annular cutting edge (50) via a cutting edge radius (R2). In this case, the ratio of the cutting edge radius (R2) to the shank external diameter (D1) is greater than 0.3.</p> |
