FRICTION STIR WELDING TOOL

• Main Authors: UCHIUMI YOSHIHARU, AOYAMA HIROKA, MATSUKAWA RINKO, TSUDA KEIICHI
• Format: Patent
• Language: English; Japanese
• Published: 10.05.2018
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide a friction stir welding tool having long life.SOLUTION: A friction stir welding tool includes base material and a coating film for covering a surface of the base material. The coating film includes a compound layer consisting of a composition of TiMCN(where M is one or more elements (however, Ti is excluded) selected from a group consisting of a 4-group element, a 5-group element, a 6-group element in a periodic table, Al, Si, and B, and x and y satisfy 0.2≤x≤1, and 0≤y≤1), and the compound layer has an elastic recovery rate of 52% or more.SELECTED DRAWING: Figure 1 【課題】長寿命を有する摩擦撹拌接合用ツールを提供する。【解決手段】基材と、基材の表面を被覆する被膜とを備える摩擦撹拌接合用ツールであって、被膜は、ＴｉxＭ1-xＣyＮ1-y（Ｍは、周期表の４族元素、５族元素、６族元素、Ａｌ、ＳｉおよびＢからなる群より選ばれる１種以上の元素（ただしＴｉは除く）であり、０．２≦ｘ≦１、および０≦ｙ≦１を満たす）の組成からなる化合物層を含み、化合物層は５２％以上の弾性回復率を有する。【選択図】図１