10 kW class CO2 laser welding of thick stainless steel plates - Details

Author：

Zhang, Song (Zhang, Song.) | Zhao, Xudong (Zhao, Xudong.) | Wu, Shikai (Wu, Shikai.) | Chen, Kai (Chen, Kai.) | Xiao, Rongshi (Xiao, Rongshi.) (Scholars：肖荣诗)

Indexed by：

EI Scopus PKU CSCD

Abstract：

Laser　welding　of　thick　stainless　steel　with　20　kW　CO2　laser　was　studied.　The　focal　point　shifts　at　high　output　power.　For　describing　welding　position　the　distance　h　between　the　center　of　focusing　mirror　and　surface　of　test　piece　was　used　as　the　welding　position　reference,　and　the　seam　formation　and　welding　depth　were　also　studied.　Besides,　high　power　laser　welding　was　more　sensitive　to　the　focal　system.　The　seam　formation　gave　little　differences　at　different　welding　positions　when　the　focal　length　f　was　300　mm　while　it　was　not　the　case　when　the　f　=　200　mm.　A　good　bead　was　got　with　one　pass　welding　when　f　=　200　mm,　h　=　208　mm,　laser　power　was　18　kW,　and　welding　velocity　was　2　m/min.　The　results　illustrated　that　through　optimizing　welding　parameters,　without　groove　and　filling　materials,　12　mm　thick　stainless　steel　plate　was　butt　welded　with　20　kW　laser　and　the　seam　formation　was　well.

Keyword：

Optical testing Carbon dioxide lasers Chromium compounds High power lasers Titanium compounds Laser beam welding Stainless steel Carbon dioxide Nickel compounds Butt welding

Author Community：

[ 1 ] [Zhang, Song]Institute of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Zhao, Xudong]Institute of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Wu, Shikai]Institute of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Chen, Kai]Institute of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Xiao, Rongshi]Institute of Laser Engineering, Beijing University of Technology, Beijing 100022, China