self press riveting machine

The main applications of SPR-Self Piercing Riveting is processing the new materials fastening for lightweight car productions, due to the important measures of lightweight car body is to introduce new material. Self Piercing Riveting can fasten the different metal material with good sealing and protect penetration function. The processes are more stable and the contact surface is more smooth, save much time and humans cost, lower energy consumption, small occupation area ,Applicable scope: coated steel sheet, aluminum,zinc, reinforced plastic, compound material etc.

 

Operating Principle：Blank holder move downward first for preloading tight the riveting material to prevent two metal pieces moving under riveting pressure. Then the power head move downward for piercing the upper material, in the hollowing block, the rivet tail opened and formed a bell shape to locking base material under the impact of power head.

 

Case 1: The thicker material should be put as base material if fasten the same metal material.

 

Case 2: The metal should be put as base material if fasten metal and non-metal material.