BN2000 是针对淬火钢通用加工开发的 CBN 材质，适用于模具钢、轴承钢、渗碳钢等淬火钢（硬度 HRC 50 以上）的连续切削、轻载及中载断续切削。该牌号通过高纯度陶瓷粘结剂技术，大幅提高了耐磨损性和抗崩刃性，覆盖从连续切削到中断续切削的广泛加工范围通用性强的无涂层 CBN 牌号。
核心定位
BN2000 是淬火钢一般加工的推荐材质，适用于 H 类（淬火钢） 的连续切削、轻载到中载断续切削，覆盖从精加工到半精加工的广泛应用。其核心优势在于高纯度陶瓷粘结剂技术——通过提高 CBN 烧结体中含有的陶瓷粘合材料的纯度，实现了耐热性的大幅提高，成功抑制了因切削加工中的高热导致的材料老化，同时减少了因刀头的磨损和周边磨损而导致的刀头缺陷，高水平发挥了耐磨损性和抗缺陷性这两种性能。尤其适合汽车部件、轴承、模具等行业淬火钢零部件的小批量、多品种生产。
适用工艺：车削（Turning），包括外圆车削、端面车削、仿形车削、内孔车削等
适用材料：淬火钢（模具钢 SKD11/SKD61、轴承钢 SUJ2、渗碳钢 SCM415H 等，硬度 HRC 50 以上）、高硬度铸铁
适用工况：连续切削 → 轻载断续切削 → 中载断续切削；精加工、半精加工
核心定位关键词：淬火钢通用加工、CBN 烧结体、无涂层、高纯度陶瓷粘结剂、高耐磨性、高抗崩刃性
涂层技术与基体特点
BN2000 采用了住友电工先进的 CBN 烧结体技术，以下为核心技术要点：
| 技术维度 | 详细说明 |
|---|---|
| 材料类型 | 无涂层 CBN（立方氮化硼）烧结体 |
| 核心技术 | 高纯度陶瓷粘结剂技术：通过提高 CBN 烧结体中含有的陶瓷粘合材料的纯度，实现了耐热性的大幅提高；成功抑制了因切削加工中的高热导致的材料老化，同时减少了因刀头的磨损和周边磨损而导致的刀头缺陷 |
| 材料特性 | CBN 的硬度仅次于金刚石，与铁的反应活性比金刚石更低，适合加工铁系金属；通过高纯度陶瓷粘结剂技术，耐磨损性和抗崩刃性同时得到了大幅提升 |
| 性能表现 | 在淬火钢从连续切削到弱～中的间歇切削等广泛用途中均可发挥稳定的性能 |
| 通用性 | 适用于所有淬火钢加工的通用材质，通过 CBN 烧结体组成的最佳化，努力取得耐磨损性和抗缺陷性的平衡 |
| 刀片阵容 | 和BN250，大幅扩充了重视锋利度的“LT”型、强化刀头的“HS”型等种类 |
应用领域
该牌号适用于以下高硬度材料的车削加工场景：
| 材料类别 | ISO 组别 | 材料举例 | 硬度范围 | 应用说明 |
|---|---|---|---|---|
| 淬火钢（主要应用） | H 类 | 模具钢（SKD11、SKD61）、轴承钢（SUJ2）、渗碳钢（SCM415H）、高速钢（HSS） | HRC 50 以上 | 连续切削 → 中载断续切削，通用加工 |
| 高硬度铸铁（次要应用） | H 类 | 冷硬铸铁、高铬铸铁 | — | 精加工、半精加工 |
典型应用场景：
轴承制造：轴承套圈、滚子等高硬度轴承钢的车削加工（HRC 50 以上）
模具制造：淬火模具钢（SKD11、SKD61）的精加工和半精加工
汽车工业：传动系统高硬度零部件（齿轮、轴类）的通用车削
齿轮制造：渗碳淬火齿轮的精加工（替代磨削）
小批量、多品种生产：由于是无涂层材料，能够很容易地适用于除 ISO 刀片以外的特型工具，在小径加工和开槽加工中促进了从研磨到干式切削的转换，削减了研磨废液、缩短了加工时间
典型行业：轴承工业、模具制造、汽车工业、齿轮制造、通用机械
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