FRICTION STIR PROCESSING APPARATUS AND FRICTION STIR PROCESSING METHOD

PROBLEM TO BE SOLVED: To provide a friction stir processing apparatus that can deal with wear of a tool caused by repeated processing operation and that suppresses occurrence of defects to enable satisfactory processing, and to provide a friction stir processing method.SOLUTION: The friction stir ap...

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Bibliographische Detailangaben
Hauptverfasser:	HIRATA TOMOTAKE, KONNO YASUYUKI, KUBO KEIJI, TAKASUGI TAKAYUKI, MOCHIZUKI NOBORU, OKI YUKIO
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINE TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS POLISHING SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a friction stir processing apparatus that can deal with wear of a tool caused by repeated processing operation and that suppresses occurrence of defects to enable satisfactory processing, and to provide a friction stir processing method.SOLUTION: The friction stir apparatus 1 is equipped with an elevation driving means 32 that vertically moves a tool 20 to set a tool height for pressing a workpiece from above. The apparatus 1 is also equipped with a tool height adjusting means 88 for controlling the elevation driving means 32 so that the tool height, when workpieces of the same material are friction-stir-processed successively several times with the same tool 20, uses the tool height set to a workpiece to be machined first as a reference tool height and that, for workpieces to be machined second time and thereafter, the tool height is set lower than the reference tool height by a prescribed lowering width for the purpose of securing a contact area necessary between the shoulder face of the tool 20 and the workpiece, correspondingly to the wear of the tool 20 by the processing operation.