In the article the equipment, method and the results of researches of strength of gas-flame coatings cohesion with the base are presented. The dependence of adhesive strength on spraying modes of powder material by oxyhydrogen flame is established and described. Recommendations on choosing the gas-flame spraying modes are developed.
To numerically solve a problem of stress-strain state of a workpiece metal under roll forming, finite element analysis was used that allowed using the principle of elastic-plastic deformations with a multilinear hardening curve. Numerical results of base metal lift have been analyzed and the adhesion strength of antifriction coatings and a steel base has been determined. Some recommendations have been made on optimal diameter choice of a workpiece subjected to the skew mesh roll forming
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