【特許請求の範囲】
【請求項１】 摩擦撹拌接合ツールの加工ヘッドを被接合材同士の接合線に沿って埋入状態で回転しつつ相対的に進行させて被接合材同士を接合一体化する摩擦撹拌接合方法において、
前記加工ヘッドによる接合部の下面側に、受け材の凹凸パターンを設けた表面を当接させて摩擦撹拌接合を行うことにより、該接合部の下面側に前記凹凸パターンを転写させることを特徴とする摩擦撹拌接合方法。
【請求項２】 受け材の凹凸パターンの凹凸高低差を０．１〜０．８ｍｍに設定する請求項１記載の摩擦撹拌接合方法。
【請求項３】 受け材は平板状である請求項１または２に記載の摩擦撹拌接合方法。
【請求項４】 受け材はローラーである請求項１ないし３のいずれか一項に記載の摩擦撹拌接合方法。
【請求項５】 摩擦撹拌接合ツールの加工ヘッドを被接合材同士の接合線に沿って埋入状態で回転しつつ相対的に進行させて被接合材同士を接合一体化するに際し、
前記加工ヘッドによる接合部の下面側に、受け材の凹凸パターンを設けた表面を当接させて摩擦撹拌接合を行うことにより、該接合部の下面側に前記凹凸パターンを転写させることを特徴とする、接合部表面に凹凸パターンを有する接合材の製造方法。
【請求項６】 受け材の凹凸パターンの凹凸高低差を０．１〜０．８ｍｍに設定する請求項５記載の接合材の製造方法。
【請求項７】 受け材は平板状である請求項５または６に記載の接合材の製造方法。
【請求項８】 受け材はローラーである請求項５ないし７のいずれか一項に記載の接合材の製造方法。
【請求項９】 請求項５に記載された方法によって製造された、接合部表面に凹凸パターンを有する接合材。
【請求項１０】 凹凸パターンの凹凸高低差は０．１〜０．８ｍｍである請求項９に記載の接合材。
[Claims]
1. In a friction stir welding method in which a processing head of a friction stir welding tool is relatively advanced while being embedded along a bonding line between materials to be welded to join and integrate the materials to be welded. ,
The feature is that the uneven pattern is transferred to the lower surface side of the joint portion by abutting the surface provided with the uneven pattern of the receiving material on the lower surface side of the joint portion by the processing head and performing friction stir welding. Friction stir welding method.
2. The friction stir welding method according to claim 1, wherein the uneven height difference of the uneven pattern of the receiving material is set to 0.1 to 0.8 mm.
3. The friction stir welding method according to claim 1 or 2, wherein the receiving material is in the form of a flat plate.
4. The friction stir welding method according to any one of claims 1 to 3, wherein the receiving material is a roller.
5. When the processing head of the friction stir welding tool is rotated along the joining line between the materials to be welded in an embedded state and relatively advanced to join and integrate the materials to be joined.
The feature is that the uneven pattern is transferred to the lower surface side of the joint portion by abutting the surface provided with the concave-convex pattern of the receiving material on the lower surface side of the joint portion by the processing head and performing friction stir welding. A method for manufacturing a joint material having a concavo-convex pattern on the surface of the joint.
6. The method for manufacturing a bonding material according to claim 5, wherein the unevenness height difference of the unevenness pattern of the receiving material is set to 0.1 to 0.8 mm.
7. The method for manufacturing a bonding material according to claim 5 or 6, wherein the receiving material is in the form of a flat plate.
8. The method for manufacturing a bonding material according to any one of claims 5 to 7, wherein the receiving material is a roller.
9. A joining material having an uneven pattern on the surface of the joining portion, which is produced by the method according to claim 5.
10. The joining material according to claim 9, wherein the unevenness height difference of the unevenness pattern is 0.1 to 0.8 mm.
すなわち、この摩擦撹拌接合では、加工ヘッドが接合線に沿って埋入状態で回転しつつ相対的に進行する際、接合部において塑性流動化した被接合材の素材が冷却固化するまでの間に、その下面側が受け材の凹凸パターンを有する表面に接すると、該パターンの凹部には塑性流動状態の該素材が入り込み、逆に該パターンの凸部が塑性流動状態の素材表面に食い込むことになるから、接合部の下面側に該パターンが凹凸を反転した形で刻印され、この刻印されたパターンが素材の冷却固化によって保存される。
In other words, until the friction stir joining, when the processing head is relatively advanced while rotating in Ingress state embedded along the joint line, Material of the bonding material is cooled and solidified plastically fluidized in the joint When the lower surface side of the receiving material comes into contact with the surface having the uneven pattern of the receiving material, the material in the plastic flow state enters the concave portion of the pattern, and conversely, the convex portion of the pattern bites into the surface of the material in the plastic flow state. Therefore, the pattern is engraved on the lower surface side of the joint portion in an inverted shape, and the engraved pattern is preserved by cooling and solidifying the material.