Chromium Zirconium Copper Conducting Bar

Introduction

Chromium zirconium copper conducting bar is one of the important structure in motor, the processing quality directly affects the performance of the entire work of the rotor and the subsequent turning technology.

Characteristic

In the wedging process of chromium zirconium copper bar, it mainly endure the radial force perpendicular to the tangential direction of the rotor core. Use alloy steel as the punch material to punch the conducting bar found that the contact portion can form the groove after elastic and plastic deformation. After simulation analysis, in the bars wedging process, material stress limit below the yield strength of the material itself; under the stamping load, the incremental changes in the width direction becomes more gentle; the bars and core has interference fit, so the rotor rotates at high speed bars do not throw core slot that can meet the technological requirements.

Failure Modes

Since the duty cycle, thermal and mechanical loads and dynamics unreasonable calculated, the environmental impact of the material and the operation of harmonics on the rotor, there are some different failure modes of chromium zirconium copper conducting bars, such as elongation, cracking, arching, melting and corrosion.