SURFACE TREATMENT METHOD

To provide a surface treatment method capable of further improving fatigue strength of a workpiece.SOLUTION: A surface treatment method includes a first step S1 for high-density transformation of the material structure of a workpiece by applying a planar wave-like shock wave to the workpiece, and a...

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Bibliographische Detailangaben
Hauptverfasser:	TSUJI TOSHIYA, MIZUNO YUTA, KUMENO FUMIAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	To provide a surface treatment method capable of further improving fatigue strength of a workpiece.SOLUTION: A surface treatment method includes a first step S1 for high-density transformation of the material structure of a workpiece by applying a planar wave-like shock wave to the workpiece, and a second step S2 for plastically deforming the workpiece by applying a spherical wave-like shock wave or pressure by physical contact to the workpiece after the first step S1.SELECTED DRAWING: Figure 1 【課題】ワークの疲労強度を更に向上可能な表面処理方法を提供する。【解決手段】表面処理方法は、ワークに平面波状の衝撃波を付与することでワークの材料組織を高密度転移させる第一工程Ｓ１と、第一工程Ｓ１後のワークに球面波状の衝撃波、又は、物理的な接触による圧力、を付与することでワークを塑性変形させる第二工程Ｓ２と、を含む。【選択図】図１