JP2021124201A - 接合要素、接合要素との接続構造、接合要素の製造方法、および対応する接続方法 - Google Patents
接合要素、接合要素との接続構造、接合要素の製造方法、および対応する接続方法 Download PDFInfo
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Abstract
【解決手段】本発明は、少なくとも2つの構成要素間の接続部を製造するための接合要素に関し、軸方向第1端部の頭部と、軸方向第1端部とは反対の軸方向第2端部の端部と、前記端部と前記頭部との間に配置されるシャフトとを備え、前記シャフトは前記軸方向第1端部と前記軸方向第2端部との間に前記接合要素の長手方向軸線を規定する。本発明では、少なくとも接合要素のシャフトおよび端部が硬化されたエッジ層を含み、これによりシャフトおよび端部の材料が、エッジ層の表面と比較して、エッジ層に隣接する内部に低い硬度を有する。
【選択図】図4
Description
10 頭部
12 上側
14 下面
16 環状溝
20 端部
22 塑性変形端部
24 硬化エッジ層
26 コア
30 シャフト
32 表面プロファイリング
40 破片
A 構成要素
L 長手方向軸線。
Claims (15)
- 軸方向第1端部における頭部と、
軸方向第1端部とは反対の軸方向第2端部における端部と、
前記端部と前記頭部との間に配置され、前記軸方向第1端部と前記軸方向第2端部との間で接合要素の長手方向軸線を規定するシャフトとを備え、少なくとも2つの構成要素間の接続部を製造するための前記接合要素において、
前記接合要素のうち少なくとも前記シャフトおよび前記端部は硬化エッジ層を含み、前記シャフトおよび前記端部の材料は、前記エッジ層の表面と比較して、前記エッジ層に隣接する内部が低い硬度を有することを特徴とする、接合要素。 - 少なくとも前記シャフトおよび前記端部の前記材料は、焼入れおよび焼戻される、請求項1に記載の接合要素。
- セッティングボルト、半中空自己穿孔リベット、中実自己穿孔リベット、ブラインドリベットおよびねじからなる群から選択される、請求項1または2に記載の接合要素。
- 前記エッジ層の硬化は、窒化、高周波による硬化、火炎による硬化、レーザ光による硬化、電子ビームによる硬化又は浸炭によって達成される、請求項1〜3のいずれかに記載の接合要素。
- 前記接合要素の少なくとも前記シャフトおよび前記端部は、前記シャフトおよび前記端部の前記材料よりも硬度が大きい材料のコーティングを含む、請求項1〜3のいずれかに記載の接合要素。
- 請求項1〜5のいずれかに記載の接合要素によって接続される少なくとも第1の構成要素および第2の構成要素を備える、接続構造。
- 前記第1の構成要素が前記頭部に隣接して配置され、前記第2の構成要素が前記接合要素の前記端部に隣接して配置され、前記第2の構成要素は鋼、特に熱間成形鋼から構成され、少なくとも800MPaの引張強度、特に800MPa〜2,000MPaの引張強度、または少なくとも800MPa〜1,500MPaの引張強度を有する、請求項6に記載の接続構造。
- 請求項1〜5のいずれかに記載の接合要素の製造方法であって、
特に冷間成形又は旋削によって、軸方向第1端部に頭部、軸方向第1端部とは反対の軸方向第2端部の端部、並びに前記端部と前記頭部との間に配置されたシャフトを有し、前記頭部は、前記軸方向第1端部と前記軸方向第2端部との間に前記接合要素の長手方向軸線を規定する、前記接合要素を供給するaステップと、
前記シャフトおよび前記端部が硬化エッジ層を含むよう前記接合要素の少なくとも前記シャフトおよび前記端部を硬化させ、それによって前記シャフトおよび前記端部の材料は、表面と比較して、半径方向に隣接する内部で低い硬度を有するbステップを含む、接合要素の製造方法。 - 前記接合要素を硬化させる前記bステップの前に、
前記接合要素の少なくとも前記シャフトおよび前記端部を焼入れ焼戻しするcステップをさらに含む、請求項8に記載の製造方法: - 前記bステップは、
窒化、高周波による硬化、火炎による硬化、レーザ光による硬化、電子ビームによる硬化又は浸炭、を含み、あるいは、
少なくとも前記接合要素の前記シャフトと前記端部に被覆を施す、請求項8または9に記載の製造方法。 - 前記接合要素が、セッティングボルト、半中空自己穿孔リベット、中実自己穿孔リベット、ブラインドリベットおよびねじから成る群から選択される、請求項8〜10のいずれかに記載の製造方法。
- 前記接合要素の材料は、冷間成形可能な鋼を含む、請求項8〜11のいずれかに記載の製造方法。
- 請求項1〜5のいずれかに記載の接合要素によって、少なくとも第1の構成要素を第2の構成要素に接続する方法であって、
前記第1および第2の構成要素を上下に配置するステップと、
上下に配置された前記第1および第2の構成要素の前記配置に、前記接合要素をセッティングし、前記接合要素のセッティングは、本質的に無回転で行われることを特徴とする、接続方法。 - 前記第1の構成要素が前記頭部に隣接して配置され、前記第2の構成要素が前記接合要素の前記端部に隣接して配置され、前記第2の構成要素は、少なくとも800MPaの引張強度、特に800MPa〜2,000MPaの引張強度、または少なくとも800MPa〜1,500MPaの引張強度を有する鋼、特に熱間成形鋼から構成される、請求項13に記載の方法。
- 前記第1の構成要素が前記頭部に隣接して配置され、前記第2の構成要素が前記接合要素の前記端部に隣接して配置され、前記第2の構成要素の貫通がパンチによる破片の分離なしに行われる、請求項13または14に記載の方法。
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