Parafuso de cisalhamento de cauda plana

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.

Flat tail parafusos de cisalhamento are specialized fasteners designed to shear off at a predetermined torque or load, protecting machinery from damage by preventing overload. Here’s a detailed description:

Caraterísticas principais:

1. Flat Tail Design

   • The bolt has a flat or slightly rounded end (as opposed to a pointed tip), making it suitable for applications where a smooth finish is needed after shearing.

   • The flat tail ensures the bolt sits flush or breaks cleanly without protruding.

   • Parafuso de cisalhamento de cauda plana

2. Shear Groove (Weak Point)

   • Contains a pre-machined notch or groove near the head or along the shank, which is the weakest point.

   • This ensures the bolt breaks predictably under excessive force, protecting sensitive components.

3. Material & Strength

   • Typically made from medium-carbon steel, stainless steel, or alloy steel for durability.

   • Heat-treated to precise hardness levels to ensure consistent shear strength.

4. Tipos de cabeça

   • Common heads include hex, flange, or countersunk to fit different applications.

   • Some have a smooth, rounded head to minimize damage if the bolt shears.

5. Tipo de rosca

   • Fully or partially threaded, depending on the application (e.g., securing shear plates in agricultural or industrial equipment).

Aplicações comuns:

• Agricultural Equipment (e.g., mowers, tillers, balers)

• Máquinas industriais (e.g., conveyor systems, gearboxes)

• Indústria automóvel e aeroespacial (safety-critical shear points)

• Construction Equipment (shear pins in augers, crushers)

Shear Bolt vs. Standard Bolt:

• Parafusos de cisalhamento are engineered to fail at a specific torque, acting as a mechanical fuse.