IRPWM CH 3 |Flash Butt Welding | Complete Class |

Flash Butt Welding | Complete Class |CHAPTER 3 | IRPWM 2024 |#ertrivendrakumar| IN HINDI AND ENGLISH
Flash Butt Welding of Rails: Overview and Process
Flash butt welding (FBW) is a technique used to join rail ends by generating controlled heat and pressure through electric resistance. The process involves aligning the rail ends, initiating a flash to remove impurities, and then forging the metals together. Here’s a breakdown of the key steps:
Preparation and Cleaning: Rail ends are pre-straightened and cleaned thoroughly to ensure good electrical contact and to prevent defects like oxide inclusions and arcing.
Welding Sequence: The sequence begins with preheating and controlled flashing, followed by the critical step of forging where intense pressure is applied to fuse the rail ends.
Cooling and Finishing: Post-weld controlled cooling is essential to avoid microstructural changes and cracks in high-strength rails. The weld is then ground to match the rail profile, ensuring a smooth, durable joint.
Quality Assurance: Each weld is inspected for geometrical tolerances, ultrasonic flaws, and hardness, following strict guidelines to meet Indian Railways' standards for safety and durability.
Whether you’re preparing for an upcoming promotion exam or looking to brush up on your knowledge, this video will be a valuable resource.
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[@tamannabegum2251]

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[@trackengineer]

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[@ChandanKumarNirala-yr5ug]

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[@tamannabegum2251]

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[@trackengineer]

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[@trackengineer]

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