| "WE ARE PERFORMING A LINEAR (CONE SHAPED) WELD IN COPPER WITH AN ALUMINUM SHELL USING A CIRCLE BEAM PATTERN GENERATOR HOWEVER WE ARE FACING SOME PROBLEMS. AFTER THE WELD WE NEED THE RUN-OUT OF ALUMINUM CONE TO BE NEAR 150 MICRONS BUT DUE TO HEAT WE ARE NOT ABLE TO MAINTAIN IT. CAN YOU KINDLY SUGGEST WHAT WE DO? WE HAVE ALREADY PUT COPPER AROUND THE ALUMINUM SHELL TO ACT AS A HEAT SINK BUT SOMETIMES IT WORKS, AND SOME TIMES IT DOES NOT." |
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| You can minimize heat input by welding at a faster speed, or even by turning this from a single weld task, into multiple welds- weld, allow to cool, weld some more, allow to cool, etc. Another thing to consider is your part fixturing, tack welding your parts prior to EBW might help to better stabilize the part. Also, as you mentioned you can utilize a heat sink, but you will need to make sure that it is making good contact in order to effectively work. |