Which metals can be successfully extruded? a) Aluminum, copper, lead, and steel. b) Aluminum, copper, lead, and iron. c) Aluminum, gold, lead, an...

The answer is (a), aluminum, copper, lead, and steel.

Extrusion is a metal forming process that uses a compressive force to push a metal billet through a die. The die has a specific cross-sectional shape, and the metal is forced to take on this shape as it is extruded.

Aluminum, copper, lead, and steel are all metals that can be successfully extruded. These metals are all relatively ductile, which means that they can be easily deformed without breaking. They are also all relatively strong, which means that they can withstand the compressive forces that are used in extrusion.

Other metals that can be extruded include:

• Magnesium
• Zinc
• Tin
• Nickel
• Titanium

The choice of which metal to extrude depends on the specific application. For example, aluminum is often used for extrusion because it is lightweight and strong. Copper is often used for extrusion because it is a good conductor of electricity. Lead is often used for extrusion because it is a soft and malleable metal.

Extrusion is a versatile metal forming process that can be used to produce a wide variety of shapes and sizes. It is a cost-effective process, and it can produce high-quality parts.