Application of heat sinks for reduction of welding strains and stresses (Review)

摘要

The possibilities of regulation of strains and stresses in the joints in welding with an artificial heat removal, are considered. Classification of welding processes with heat removal by technological and physical characteristics is proposed. It is found that for up to 3 mm thick metal the most effective is the use of heat-absorbing pastes and crystalline heat- absorbing rods, and for metal 3 to 8 mm thick -- water cooling. Welding with heat removal should he regarded as a resources-saving process.