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SHI Wen-qing, YANG Yong-qiang. Laser beam’s focused properties and its transmission and transformation in selective laser melting[J]. LASER TECHNOLOGY, 2008, 32(3): 308-311.
Citation: SHI Wen-qing, YANG Yong-qiang. Laser beam’s focused properties and its transmission and transformation in selective laser melting[J]. LASER TECHNOLOGY, 2008, 32(3): 308-311.

Laser beam’s focused properties and its transmission and transformation in selective laser melting

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  • Received Date: January 28, 2007
  • Revised Date: August 22, 2007
  • Published Date: June 24, 2008
  • In order to obtain the laser beam with better beam quality,smaller spot diameter and higher power density in rapid prototyping for selective laser melting(SLM),Gaussian beam used in SLM was transmitted and transformed.The theoretic and experimental transmission,transformation and focused characteristic properties were analyzed.The experimental results are consistent with the theoretic ones.The smaller spot with power density above 106W/cm2 which is applicable in SLM,was obtained.When used in 3-D rapid prototyping for SLM of Ni-based alloy and Cu-P alloy powder,it also indicated feasible and effectual,and met the demands of spot diameter and power density.
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