Calculation of the thermal cycles of points in automatic welding and surfacing taking special features of melting of parent metal into account

Abstract

It is shown that the well-known equations proposed by N.N. Rykalin for calculating temperatures and also the main parameters of the thermal cycles of points in automatic welding and surfacing with the allowance made for the factors associated with the melting of parent metal should be corrected.

Keywords:

• thermal cycle parameters
• peak temperature
• fusion
• heat
• overheat
• coefficient of thermal efficiency
• fusion area
• heat-affected area
• instantaneous rate of cooling