Faying Surface Geometry
The abutment edge geometry defines the shape and size of contact surfaces in mechanical connections. It influences the uniform introduction of joining forces and currents.
Physico-chemical mechanism of action
The shape of the contact edges determines how the joining forces and current are distributed over the contact surface. Round or flat edges lead to an even distribution, while pointed edges can cause uneven load distribution and possible stress.
Metallurgical relevance & risks when welding
Incorrect contact edge geometry can lead to unevenly loaded joints, causing stress concentrations and possible cracks or fractures in the material. Optimal geometry ensures even load distribution and improves joint strength.
Workshop practice & instructions
For mechanical press or fusion welding joints, use edges with a straight or slightly rounded shape. The edges should have a 90° angle to ensure even load distribution. For special applications, other geometries may be required as specified by the manufacturer.