Tube expanding is a method of

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Multiple Choice

Tube expanding is a method of

Explanation:
Tube expanding creates a tight mechanical connection between a tube and its support, such as a tube sheet, by enlarging the tube end so it grips the hole or a collar. This forms an interference fit that seals and holds the tube in place under pressure and thermal cycling. In boiler work, expanding the tube end ensures a strong, leak-tight joint without welds, allowing the tube to withstand operating conditions while accommodating slight movements. The aim is to join the tube securely to its support, rather than disconnect, measure, or align parts.

Tube expanding creates a tight mechanical connection between a tube and its support, such as a tube sheet, by enlarging the tube end so it grips the hole or a collar. This forms an interference fit that seals and holds the tube in place under pressure and thermal cycling. In boiler work, expanding the tube end ensures a strong, leak-tight joint without welds, allowing the tube to withstand operating conditions while accommodating slight movements. The aim is to join the tube securely to its support, rather than disconnect, measure, or align parts.

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