ПІДВИЩЕННЯ СТАБІЛЬНОСТІ ПРОЦЕСУ ГНУТТЯ БІМЕТАЛІЧНИХ ДУГ ПАСАЖИРСЬКИХ ВАГОНІВ
Applicability of specialized pieces of dissimilar materials for the vehicle frame elements manufacturing by bending is grounded. Stretching of the binary system if the external friction is available is considered. Contact friction stresses were determined by the dependences of the molecular-mechanical theory. The authors have presented the method to determine the parameters of the radial-draw forming of the passenger cars’ bimetallic carlines: stainless steel + carbon steel. The technological methods and techniques to increase deformability of a blank weld during its forming, before it and after forming have been systemized, generalized and presented. Also, the problems of determination of the stress-strain state of the bimetallic carline of a passenger car at bending are investigated and the destruction criteria are found.