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         "type" : "Publication",
         "id"   : "https://puma.ub.uni-stuttgart.de/bibtex/232a57292da36f8ab8f098dbf629bc4ac/ifsw",         
         "tags" : [
            "myown","CompressiveStres","LaserBeamWelding","AluminumAlloys","TransverseHotCracking","ElectromobilityApplications"
         ],
         
         "intraHash" : "32a57292da36f8ab8f098dbf629bc4ac",
         "interHash" : "bb53ce3f9bc20b6c8b0c242ca5046554",
         "label" : "Reduction of transverse hot cracks by means of compressive \r\nstresses during laser welding of high strength aluminum alloys \r\nwith high feed rates",
         "user" : "ifsw",
         "description" : "",
         "date" : "2024-05-08 21:41:53",
         "changeDate" : "2024-05-08 21:41:53",
         "count" : 4,
         "pub-type": "presentation",
         
         "year": "2023", 
         "url": "", 
         
         "author": [ 
            "Johannes Michel","Frauke Holder","Jonas Wagner","Felix Zaiß","Christian Hagenlocher","Rudolf Weber","Thomas Graf"
         ],
         "authors": [
         	
            	{"first" : "Johannes",	"last" : "Michel"},
            	{"first" : "Frauke",	"last" : "Holder"},
            	{"first" : "Jonas",	"last" : "Wagner"},
            	{"first" : "Felix",	"last" : "Zaiß"},
            	{"first" : "Christian",	"last" : "Hagenlocher"},
            	{"first" : "Rudolf",	"last" : "Weber"},
            	{"first" : "Thomas",	"last" : "Graf"}
         ],
         "abstract": "Laser welding of high-strength aluminum alloys at high feed rates leads to transverse hot cracks. These cracks present a \r\nmajor challenge for electromobility applications, especially in the manufacturing of battery cases, as transverse hot cracks \r\ncan lead to a leaky weld seam and potential component failure. To determine suitable strategies for the avoidance of \r\ntransverse cracks, their formation was experimentally investigated and theoretically analyzed. A simulation of the \r\ntemperature field and the fluid flow in the melt pool showed a decrease of the static pressure at the liquidus isotherm at \r\nhigh feed rates. The decrease of the static pressure in the melt pool impairs the liquid feeding between the solidifying \r\ngrains and increases the risk of transverse hot cracking. To balance this pressure drop in the melt, a mechanic compressive \r\nstress was applied on the sample during welding. Such stresses are present in case of welding e.g., rollforming profiles. \r\nThe resulting welds show a significant reduction of transverse cracks which highlights the potential of applying external \r\nmechanical compressive stress to reduce the formation of transverse hot cracks.",
         "eventtitle" : "Lasers in Manufacturing",
         
         "venue" : "Munich, Germany",
         
         "language" : "english",
         
         "eventdate" : "29 June 2023",
         
         "bibtexKey": "michel2023reductiontalk"

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            "for:","ifsw","myown","CompressiveStres","LaserBeamWelding","AluminumAlloys","TransverseHotCracking","ElectromobilityApplications"
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         "interHash" : "bb53ce3f9bc20b6c8b0c242ca5046554",
         "label" : "Reduction of transverse hot cracks by means of compressive \r\nstresses during laser welding of high strength aluminum alloys \r\nwith high feed rates",
         "user" : "ifsw",
         "description" : "",
         "date" : "2024-05-08 21:28:04",
         "changeDate" : "2024-05-08 21:28:04",
         "count" : 4,
         "pub-type": "inproceedings",
         "booktitle": "Fundamentals and Process Simulation","series": "Proc. LiM",
         "year": "2023", 
         "url": "", 
         
         "author": [ 
            "Johannes Michel","Frauke Holder","Jonas Wagner","Felix Zaiß","Christian Hagenlocher","Rudolf Weber","Thomas Graf"
         ],
         "authors": [
         	
            	{"first" : "Johannes",	"last" : "Michel"},
            	{"first" : "Frauke",	"last" : "Holder"},
            	{"first" : "Jonas",	"last" : "Wagner"},
            	{"first" : "Felix",	"last" : "Zaiß"},
            	{"first" : "Christian",	"last" : "Hagenlocher"},
            	{"first" : "Rudolf",	"last" : "Weber"},
            	{"first" : "Thomas",	"last" : "Graf"}
         ],
         "abstract": "Laser welding of high-strength aluminum alloys at high feed rates leads to transverse hot cracks. These cracks present a \r\nmajor challenge for electromobility applications, especially in the manufacturing of battery cases, as transverse hot cracks \r\ncan lead to a leaky weld seam and potential component failure. To determine suitable strategies for the avoidance of \r\ntransverse cracks, their formation was experimentally investigated and theoretically analyzed. A simulation of the \r\ntemperature field and the fluid flow in the melt pool showed a decrease of the static pressure at the liquidus isotherm at \r\nhigh feed rates. The decrease of the static pressure in the melt pool impairs the liquid feeding between the solidifying \r\ngrains and increases the risk of transverse hot cracking. To balance this pressure drop in the melt, a mechanic compressive \r\nstress was applied on the sample during welding. Such stresses are present in case of welding e.g., rollforming profiles. \r\nThe resulting welds show a significant reduction of transverse cracks which highlights the potential of applying external \r\nmechanical compressive stress to reduce the formation of transverse hot cracks.",
         "venue" : "Munich, Germany",
         
         "language" : "english",
         
         "eventdate" : "June 26 - 29, 2023",
         
         "eventtitle" : "Lasers in Manufacturing",
         
         "bibtexKey": "michel2023reduction"

      }
	  
   ]
}