Shrinkage Force Calculation

Physical-Chemical Mechanism of Action

Cooling of metals leads to volume reduction as the crystal lattice contracts. This process generates mechanical forces known as shrinkage forces.

Metallurgical Relevance & Welding Risks

Inadequate consideration of shrinkage force can lead to stress buildup and thus cracks or distortion in complex weldments. This can compromise structural integrity.

Shop Practice & Action Guidelines

To calculate shrinkage force, the following parameters must be considered: material type, weld thickness, cooling length, and cooling rate. For severe stress buildup, stress relief through mechanical methods or using stress-relieving tools may be necessary.