The study of deformation of the blade parts of tillage after their electro arc

Abstract

Annotation Purpose. Establishment of the relationship between the deformation of the blade parts of tillage and design parameters after electro arc. Methods. Planning an experiment, mathematical statistics and analytical processing of experimental data. Results. The dependences of the deformation of the blade parts of tillage equipment on the design parameters after their recovery and hardening by electro arc are established. Conclusions 1. It has been established that the magnitude of the deformation Δ, mm of the part of tillage, is inversely depends on the thickness δ after hardening. 2. It has been established that the magnitude of the deformation Δ, mm of the part of tillage, is inversely dependent on the width B after hardening. 3. The rational modes of electro arc were established when hardening parts of tillage with a thickness of 4–10 mm, a width of 20 mm to 60 mm and a length of 230 mm to 500 mm, namely, a current of 350–400 A, a voltage of 50–55 V and a temperature cooling medium in the bath of the installation for simultaneous electro arc sharpening and hardening – 20–60 °С. Such rational modes of electro arc ensure the absence of deformation of parts of tillage less than 5 mm, which is permissible according to the requirements of regulatory, technical and design documentation. Keywords: deformation, length, operation, electro arc, hardening, parts of tillage, thickness, width.