Machine Tools and CNC Quiz

Machine Tools

• A machine tool is a power-driven machine used for cutting, shaping, and finishing metal or other rigid materials.
• Modern machine tools are computer numerically controlled (CNC).

Types of Machine Tools

• Machine tools can be classified into six groups: drilling and boring, grinding, turning, shaping and broaching, metal forming, and milling.

Lathe Machine

• A lathe rotates the workpiece on its axis to perform various operations.
• A lathe consists of a stand, lathe bed (horizontal beam), headstock, and tailstock.
• The headstock contains high-precision spinning bearings and a rotating horizontal axle (spindle) that is parallel to the bed.
• The spindle is powered and imparts motion to the workpiece.
• The power source is usually an integral electric motor.

Turning and Drilling

• Turning is a form of material removal process used to create rotational parts by cutting away unwanted material.
• Drilling is the process of cutting holes in a solid material using a rotating cutting tool.

CNC Machines

• A toolpath is a series of instructions that define the movement of a cutting tool on a CNC machine.

Applications of Machine Tools

• Machine tools make the working parts of various products, including telephones, television sets, radios, washing machines, refrigerators, and automobiles.