Laser strengthening device for antifriction bearing ring
A technology of laser strengthening and rolling bearings, applied in furnaces, heat treatment equipment, heat treatment furnaces, etc., can solve problems such as stress relaxation, processing deformation, geometric deformation of bearing rings, etc., and achieve the effects of slowing down the relaxation rate, suppressing deformation, and improving stability
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[0046] It is understandable that due to the limitation of the laser spot A emitted by the laser, it is impossible to strengthen all parts of the raceway of the bearing ring 4 at the same time, which will result in an imbalance in stress distribution, that is, processing stress will be generated, and As a result, deformation of the bearing ring 4 will occur. Although the deformation is not large, for high-precision parts such as bearings (generally IT6 or IT7 accuracy), the laser-enhanced processing deformation is sufficient to make the geometric shape out of tolerance.
[0047] Regarding laser strengthening, the principle is to first apply a layer of black paint on the surface of the workpiece to form a black paint layer. The black paint layer has a better light absorption effect and is also called the absorption layer. When the laser spot A falls on the absorption layer, the part of the black paint covered by the spot A is heated and vaporized to form plasma, which produces a bur...
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