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Magnetic-Field-Assisted Scratching Process of Single-Crystal Copper.

Xian Wu1, Kechuang Zhang1, Ke Sun1

  • 1College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China.

Micromachines
|December 23, 2023
PubMed
Summary

Magnetic-field-assisted scratching of copper reduced friction and improved surface finish by 26.8%. This innovative method enhances machinability by promoting dislocation slip and reducing chip deformation.

Keywords:
friction coefficientmagnetic fieldmetal cutting processsingle-crystal copper

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Area of Science:

  • Materials Science
  • Manufacturing Engineering
  • Tribology

Background:

  • Energy-field-assisted cutting enhances machining quality and reduces cutting forces.
  • Magnetic fields offer a novel approach to improving cutting processes.

Purpose of the Study:

  • To investigate the effects of magnetic-field-assisted scratching on single-crystal copper.
  • To analyze changes in cutting force, friction, and surface quality.

Main Methods:

  • Performed scratching experiments on single-crystal copper with and without magnetic field assistance.
  • Measured scratching force, friction coefficient, and surface roughness.
  • Analyzed chip deformation and surface topography.

Main Results:

  • Magnetic-field-assisted scratching increased scratching force due to Lorentz force.
  • Friction coefficient decreased by 19.4% due to tribological modification.
  • Surface roughness was reduced by an average of 26.8%, with decreased chip deformation and fewer microburrs.

Conclusions:

  • Magnetic-field-assisted cutting improves machinability of metal materials.
  • The presence of a magnetic field promotes dislocation slip, enhancing material removal and surface integrity.