To improve the strength of a component having a shrink flange.SOLUTION: A component comprises: a surface 2 in which a portion of an outer peripheral edge is curved outward; a flange 3 which extends in a direction intersecting the surface 2 in the curved portion of the surface 2; and a ridge line 4 which connects the surface 2 and the flange 3. When the 1/3 position of the length L of the flange 3 starting from an end 4a on the flange 3 side of the ridge line 4 is defined as a boundary point P1 and a region to the boundary point P1 from an end 4b on the surface 2 side of the ridge line 4 is defined as a first region A1 on a cross section cut along the curvature radius direction of the flange 3 in a plan view from a direction vertical to the surface 2, the average Vickers hardness of the first region A1 is equal to or greater than 90% of the Vickers hardness of a tip 3a of the flange 3.SELECTED DRAWING: Figure 6
【課題】縮みフランジを有する部品の強度を向上させる。【解決手段】外周縁の一部が外方に湾曲した面2と、面2の湾曲した部分において該面2と交差する方向に延在したフランジ3と、面2とフランジ3とを接続する稜線4とを有し、面2に垂直な方向から見た平面視におけるフランジ3の曲率半径方向に沿って切断された断面において、稜線4のフランジ3側の端部4aを起点とするフランジ3の長さLの1/3の位置を境界点P1と定義し、稜線4の面2側の端部4bから境界点P1までの領域を第1の領域A1と定義したときに、第1の領域A1の平均ビッカース硬さが、フランジ3の先端3aのビッカース硬さの90%以上である部品を構成する。【選択図】図6
COMPONENT HAVING SHRINK FLANGE
縮みフランジを有する部品
2021-06-24
Patent
Electronic Resource
Japanese
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