
冷镦加工是一种少切削或无切削的压力加工新工艺
金屬。它是一種利用金屬在下列因素作用下產生塑性變形的加工方法
外力作用下,在模具的幫助下,重新分配和轉移金屬的體積,以形成
所需的零件或坯料。冷镦工艺最适合生产标准的
螺栓、螺絲、螺帽、鉚釘和銷等緊固件

的 Cup Head Stepped 剪切螺栓 is a specialized fastener designed for applications where controlled shearing and secure fastening are required. Here’s an overall description of its key features:
1. Design & Structure:
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Cup Head: Features a rounded, dome-shaped head that provides a smooth finish and aesthetic appeal while allowing for tool engagement (typically a wrench or socket).
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Stepped Shank: 螺栓有一個 縮小直徑部分 (step) near the head or along the shank, which acts as a predetermined shear point. This ensures the bolt breaks at a specific load, preventing damage to other components.
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杯頭階梯剪切螺栓
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Threaded Portion: The lower part of the shank is threaded to engage with a nut or tapped hole, ensuring a secure hold.
2. Material:
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通常由 高強度鋼 (grade 5 or 8) or 不銹鋼 耐腐蝕性。
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May feature coatings like 鍍鋅 或 hot-dip galvanizing for enhanced durability.
3. Function & Applications:
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剪切功能: The stepped section is designed to 剪断 under a specific torque or load, acting as a mechanical fuse to protect machinery from overload.
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常見用途:
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汽車 (suspension systems, drivetrain components)
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杯頭階梯剪切螺栓
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航太 (engine mounts, structural assemblies)
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工業機械 (safety-critical bolted joints)
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Railway & Construction (where controlled failure is necessary)
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4. Advantages:
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受控失敗: Prevents damage to expensive components by shearing at a set load.
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Secure Fastening: The cup head provides a strong clamping force before shearing.
5. Standards & Specifications:
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可能符合 ISO, DIN, SAE, or ASTM standards depending on application.
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Available in various diameters (e.g., M6, M10, ½”) and lengths.
- 杯頭階梯剪切螺栓
6. Installation & Removal:
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Installed using standard tools (wrench/socket).






