O processo de encabeçamento a frio é um dos novos processos para a maquinagem sob pressão com menos ou nenhum corte
metal. É um método de processamento que utiliza a deformação plástica do metal sob a ação de
forças externas e, com a ajuda de moldes, redistribui e transfere o volume de metal para formar
as peças ou os espaços em branco necessários. O processo de encabeçamento a frio é o mais adequado para a produção de
elementos de fixação, tais como cavilhas, parafusos, porcas, rebites, cavilhas, etc.
A Hexagon Safety Wire Bolt is a specialized fastener designed to remain secure in high-vibration or high-torque environments, commonly used in aerospace, automotive, and industrial applications. Here’s a detailed description:
Caraterísticas principais:
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Hexagon Head – Features a standard six-sided (hex) head for easy tightening and loosening with a wrench or socket.
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Safety Wire Holes – Includes pre-drilled holes (usually two) in the head or shank to allow safety wire (lock wire) to be threaded through, preventing loosening due to vibration.
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Material – Typically made from high-strength materials like:
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Aço inoxidável (e.g., AISI 304, 316) for corrosion resistance.
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Alloy Steel (e.g., Grade 8, 10.9) for high tensile strength.
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Titanium (e.g., Grade 5) for lightweight, high-strength applications.
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Tipo de rosca – May have fine or coarse threads depending on the application (e.g., metric or SAE).
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Surface Finish – Often coated with corrosion-resistant treatments like zinc plating, cadmium, or anodizing (for aluminum variants).
Aplicações comuns:
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Aircraft & Aerospace – Securing critical components like engine parts, landing gear, and control surfaces.
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Motorsports – Used in engines, exhaust systems, and suspension to prevent bolt failure.
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Military & Defense – Ensures reliability in firearms, vehicles, and machinery.
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Máquinas industriais – Prevents loosening in vibrating equipment like turbines and pumps.
Safety Wire Method:
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The bolt is tightened to the correct torque, and then a stainless steel wire is threaded through the holes and twisted tightly, connecting it to another secured bolt or fixed point. This prevents rotation in either direction.
Vantagens:
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Resistência à vibração – Prevents self-loosening in dynamic environments.
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Fiabilidade – Provides a fail-safe mechanical lock where threadlockers may fail.
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Reusable – Unlike chemical adhesives, safety wire can be replaced.
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