| 摘要 |
PROBLEM TO BE SOLVED: To provide a mechanical clinch punch, a mechanical clinch device, and a mechanical clinch component capable of acquiring sufficient bond strength, and capable of excellently bonding even when there are variations of thickness and strength in plate material to be bonded.SOLUTION: A mechanical clinch punch is configured so that on a peripheral side surface 20b of a tip part 20a of a punch 20, a groove part 21 or a projection extending in an axial direction from a tip of the punch 20 is formed.SELECTED DRAWING: Figure 2 |
