(57) Abstract Objective Making use of the YAG laser device for pile foil welding, it is heavyReliability of the welding region of the metallic foil which the tatami mat is done is raised. Constitution Distribution facilities you do the metallic foil P which, is superimposed at specified intervalIt is roller in the center section of 11,12 above two and the crosswiseUnderneath possessing projection provision 22 in ke ru rim, with rollers 21Surface of insertion and metallic foil P in upper part roller 11,12From the metal which is the center section of the pushing overpowering and upper part roller 11,12The underside of foil P the pushing by overpowering with projection provision 22 the metallic foil sameThe opening of the loyal retainer the laser light 1 which is irradiated from narrow me te torch 13Although it welds with 4 the metal mist which it occurs from the welding region miIn absorbing from absorption opening 15of a strike absorption nozzle 15From because contamination of the light condensing glass lens is prevented, the metal which is superimposedReliability of the welding region of the foil being raised, in this welding region the high airYou can obtain dense Characteristic.
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