stress amplitude
The oscillation amplitude is the maximum distance a point moves from the mean value during a vibration. It indicates the strength of the motion and affects fatigue damage.
Physical-Chemical Mechanism of Action
The vibration amplitude describes the maximum displacement of a point during a periodic motion. It is half the difference between the maximum and minimum values in a cycle.
Metallurgical Relevance & Risks in Welding
High vibration amplitude leads to stronger mechanical stresses on the weld. This increases fatigue damage and can cause fractures or cracks in the material, especially if the material is already under stress.
Workshop Practice & Action Guidelines
To control the vibration amplitude, ensure even tool movement and avoid abrupt starts and stops. For mechanical connections, it is important to design the load cycle to keep the amplitude minimal. This can be achieved by optimizing welding parameters such as speed and voltage.