Correct option is D
The
lathe bed is typically made of
cast iron because of its excellent properties, such as high compressive strength, good damping capacity, and wear resistance. These properties make cast iron ideal for supporting the heavy loads and vibrations generated during machining operations on a lathe.
The lathe bed is the component of a lathe machine that supports the carriage, headstock, and tailstock. It is made of
cast iron because:
· Cast iron has high compressive strength, which allows it to bear heavy loads.
· Its excellent vibration-damping capacity ensures stable machining operations.
· It is resistant to wear, ensuring a long service life of the machine.
The lathe chuck is usually made of hardened steel or alloy steel to withstand high wear and tear, as it directly grips and holds the rotating workpiece. Cast iron is not suitable for this purpose due to its brittleness.
The spindle of a drill machine is made of high-strength alloy steel, as it requires toughness, fatigue resistance, and the ability to handle high rotational speeds. Cast iron cannot meet these demands.
Anvils are traditionally made of forged steel because of its superior hardness, toughness, and impact resistance. While some anvils may have cast iron bases, the working surface is never made from cast iron, as it would break under heavy hammering.
