Grigory I Koval

Title: Grigory I Koval: Innovator in Metal Bar Rolling Technology

Introduction

Grigory I Koval is a notable inventor based in Chelyabinsk, Russia. He has made significant contributions to the field of metalworking, particularly in the area of rolling technology. His innovative approach has led to the development of a unique method and mill rolls for metal bar rolling.

Latest Patents

Koval holds a patent for a method and mill rolls designed for the plastic working of metals. This invention focuses on reducing a workpiece along its axis using a pair of shaped rolls. The process involves creating a transitional length in the workpiece, where the cross-section gradually changes from an initial shape to several finished bar cross-sections interconnected by webs. The method alternates the reduction of the workpiece with axial displacement, allowing for efficient separation of the bars at the end of the transitional length.

Career Highlights

Throughout his career, Koval has demonstrated a commitment to advancing metalworking techniques. His patent showcases his expertise in designing mill rolls with grooves of variable cross-section, which facilitate the rolling of bars. The innovative profile of each groove is formed by two mutually conjugated arcs that interact with the workpiece, enhancing the efficiency of the rolling process.

Collaborations

Koval has collaborated with notable professionals in his field, including Vladimir N Vydrin and Evgeny N Berezin. These partnerships have likely contributed to the refinement and success of his innovative methods.

Conclusion

Grigory I Koval's contributions to metal bar rolling technology exemplify the spirit of innovation in the field of metalworking. His patented method and mill rolls represent a significant advancement that enhances the efficiency of metal processing.