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WU Gang, SONG Guang-ming, HUANG Wan-juan. Influence of laser processing parameters on the case-depth and the hardness[J]. LASER TECHNOLOGY, 2007, 31(2): 163-165,174.
Citation: WU Gang, SONG Guang-ming, HUANG Wan-juan. Influence of laser processing parameters on the case-depth and the hardness[J]. LASER TECHNOLOGY, 2007, 31(2): 163-165,174.
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Influence of laser processing parameters on the case-depth and the hardness

  • Institute of Laser Application, Shanghai Maritime University, Shanghai 200135, China

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  • Received Date: January 16, 2006
  • Revised Date: March 20, 2006
  • Published Date: April 24, 2007
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    • Abstract
  • Both from experiments and theoretical analysis,the influenceof laser processing parameters on the case-depth and the hardness in laser quenching was studied.Under the condition of equal input laser energyand different laser power and scanning velocity,the variation of the case-depth and the hardness was measured.Measurement results show that the change of both the laser power and the scanning velocity can affect the case-depth and the hardness obviously and the change of laser power affects the case-depth more significantly.On the other hand,the change of either the laser power or the scanning velocity has a little influence on the hardness.Correspondingly,the change of the scanning velocity has a little more influence on the hardness.By means of analytical simulation of the temperature distribution and the heating/cooling rates under the laser scanning,reasonable explanation for the results was put forward.
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    • References (10)
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