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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 3, Iss. 1 — Jan. 10, 2005
  • pp: 31–34

Investigation on laser brazing AA6056 Al alloy to XC18 low-carbon steel

Jianjun Ding, Feiqun Li, Feng Qu, Patrice Peyre, and Remy Fabbro  »View Author Affiliations

Chinese Optics Letters, Vol. 3, Issue 1, pp. 31-34 (2005)

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Based on the studies of influence of YAG laser heating conditions for Al alloy melt and steel on wettability, the mechanics of the laser overlap braze welding of 6056 Al and XC18 steel sheet has been investigated. Under the temperature range which is above the melting point of the Al alloy and below the melting point of the steel, two dissimilar metals can be joined by means of laser braze welding. There is no crack observed in the joining area, i.e. Al-Fe intermetallic phase (Fe3Al/FeAl/FeAl3/Fe2Al5) layer formed by solution and diffusion between liquid-solid interface. The temperature range can be defined as the process temperatures of laser braze welding of Al-Fe materials. Selecting a higher laser heating temperature can improve the wettability of Al melt to steel surface, but the intermetallic phase layer is also thicker. When the laser heating temperature is so high that the joining surface of steel is melted, there is a crack trend in the joining area.

© 2005 Chinese Optics Letters

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(160.0160) Materials : Materials
(350.3390) Other areas of optics : Laser materials processing

Jianjun Ding, Feiqun Li, Feng Qu, Patrice Peyre, and Remy Fabbro, "Investigation on laser brazing AA6056 Al alloy to XC18 low-carbon steel," Chin. Opt. Lett. 3, 31-34 (2005)

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