Question

A tooth paste tube can be produced by

• A. Hollow backward extrusion
• B. Solid backward extrusion
• C. Hollow forward extrusion
• D. Solid forward extrusion

Hint:

Backward extrusion is preferred for hollow components, especially when seamless construction is essential, like in tubes and containers.

Answer 1

The Correct Option is A

Toothpaste tubes are typically hollow, cylindrical shapes with a closed end, which are efficiently manufactured using the hollow backward extrusion process. In this process, a punch forces the metal to flow backward around the punch and out through the annular space between the punch and die, forming a seamless hollow product. This method ensures: - Uniform wall thickness - High dimensional accuracy - No welding or joining required Thus, it is ideal for manufacturing collapsible tubes like those used for toothpaste.