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Laser hardening characteristics

Laser hardening characteristics

  • Categories:Industry news
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  • Time of issue:2020-07-01 10:50
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(Summary description)

Laser hardening characteristics

(Summary description)

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2020-07-01 10:50
  • Views:
Information

The main feature of laser quenching is to select higher energy laser beam as higher energy pyrogen, and the laser generator will cause the laser and outer laser light path to transmit and focus, generate light with high specific energy, and complete the tempering treatment of the surface of the metal material sheet Process, its manufacturability is better than basic flame surface quenching, medium and high frequency surface quenching. The main manifestation is that because the laser beam has kinetic energy and is very easy to manipulate, the laser beam that has undergone plastic surgery has the characteristics of high specific energy and good specificity.
Basic characteristics of laser hardening process include:
High hardness, that is, the laser quenching hardness is higher than the basic quenching hardness, 5-20% higher than the basic quenching process hardness
The deep controllability of hard bottoming, the reasonable thickness of the hard bottoming layer is 0.2-1.0, and the total width of a hard bottoming belt is 1.5-60mm. Several steel bars can be overlapped, and large-scale laser quenching and tempering can be completed.
The thermal hazard zone is small and the deformation is small. The thermal hazard zone caused by the laser beam at the junction of the hard bottom layer and the plate is not large, about 0.3-1.b250m
The distance between the laser quenching and tempering treatment is very large, that is, the distance between the production and processing heads and the surface of the product is 100-300mm. The process is easy to execute, and part of the quenching process can be carried out. The process is flexible and maneuverable.
Laser quenching is one of the key ways to strengthen the surface of raw materials. When laser quenching is performed on metal composite materials, because of the rapid heating and cooling effect of the laser on the surface of the raw materials, twin austenite with high carbon steel composition can be obtained on the surface , The relative density of upper dislocation martensite, sorbite and hard cementite have excellent wear resistance and corrosion resistance, which greatly improves the surface characteristics of the raw material.

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