利索-全球专利检索

  1. 登录
  2. 注册
发明专利
JP2021154328A 鍛造用材料、鍛造部材およびその製造方法 审中-公开

鍛造用材料、鍛造部材およびその製造方法
摘要：
【課題】焼入焼戻し処理又は高周波焼入焼戻し処理後の表層硬さ及び硬化層深さが浸炭焼入焼戻し処理材と同等以上であり、耐摩耗性に優れ、かつ、部品成形時の加工性にも優れた鍛造部材並びに、この鍛造部材の材料となる鍛造用材料、及びこの鍛造部材の製造方法を提供する。 【解決手段】本発明の鍛造用材料1は、所定の化学成分を有する外側鋼材11と内側鋼材12とを備え、鍛造用材料が、鍛造用材料の軸方向と垂直な面における外側鋼材の面積S1と内側鋼材の面積S2とが0.90≧S2/(S1+S2)を満たす箇所を有し、端面拘束圧縮試験にてひずみ速度10s −1 で得られた変形抵抗で、相当塑性ひずみ1.5における外側鋼材の変形抵抗σ’1と内側鋼材の変形抵抗σ’2とが、σ’1×S1/(S1+S2)+σ’2×S2/(S1+S2)≦750[MPa]を満たす。 【選択図】図2
摘要（英）：

To provide a forging component which has the surface layer hardness and hard layer depth after quenching/tempering treatment or induction quenching/tempering treatment equal to or more than those of a carburized quenching/tempering treatment material and is excellent in wear resistance and also superior in processability at component molding, and to provide a forging material being a material of the forging component and a method for production of the forging component.SOLUTION: A forging material 1 in this invention comprises outside and inside steel materials 11 and 12 having a prescribed chemical composition. The forging material has a place at which the area S1 of the outside steel material in the plane perpendicular to the axial direction of the forging material, and the area S2 of the inside steel material satisfy 0.90≥S2/(S1+S2). In the deformation resistance obtained at a strain rate 10 s-1 in an edge face-binding compression test, the deformation resistances σ'1 and σ'2 of the outside and inside steel materials in an equivalent plastic strain of 1.5 satisfy σ'1×S1/(S1+S2)+σ'2×S2/(S1+S2)≤750[MPa].SELECTED DRAWING: Figure 2

信息查询
Espacenet
0/0