Friction Welding Spindle
The friction welding spindle is a speed-controlled axis that brings one joining partner to high rotational speed and withstands axial pressure.
Physical-Chemical Mechanism of Action
The friction welding spindle rotates one of the two parts to be welded at high speed, causing the surfaces to slide against each other on a microscopic level. This leads to breakdown and deformation of the material surface, resulting in a metallurgical bond between the parts.
Metallurgical Relevance & Risks in Welding
Insufficient rotational speed or excessive axial pressure can lead to incomplete breakdown and lack of bond. This increases the risk of cracks and reduces weld strength.
Workshop Practice & Instructions
Ensure the spindle reaches a rotational speed of at least 1000 rpm. Monitor the axial pressure and make sure it does not exceed 250 N/mm². Use high-quality welding lubricants to reduce friction.