FIELD: machine building.
SUBSTANCE: thread section is heated using the heat source in form of laser, creation of laser beam spot on bottom of the thread groove at its centre, laser beam movement relatively to the longitudinal axis during article rotation upon the laser beam movement value equal to thread pitch per one turn of rotation. Creation of the laser beam spot is performed by the scanning laser beam with scanning frequency 20÷600 Hz along axis of rotation and scanning amplitude 0.6÷0.8 of thread pitch.
EFFECT: strengthening of trapezoidal thread, increased process productivity and quality.
1 dwg
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