The command for drilling is represented by which G code?

The command for drilling is represented by which G code?

• A. G80
• B. G81
• C. G90
• D. G70

Answer: (B)

The command for drilling is represented by G81, which is a standard G code used in CNC programming to initiate a drilling cycle. This command instructs the CNC machine to move the tool down to a specified depth in a linear manner for drilling operations. It sets up a simple drilling cycle that makes it easy to repeat the process without needing to re-enter all parameters for every single hole, improving efficiency in production. In practical application, when you use G81, you would typically follow it with other parameters specifying the position, depth of the hole, and the feed rate. This standardization is crucial in manufacturing environments where precision and speed are necessary. Other G codes mentioned in the choices have different functions. For example, G80 cancels a canned cycle, while G90 sets the machine to absolute positioning mode. G70 relates to turning operations and not milling or drilling. Knowing these distinctions is vital for effective CNC programming and operation.

The command for drilling is represented by G81, which is a standard G code used in CNC programming to initiate a drilling cycle. This command instructs the CNC machine to move the tool down to a specified depth in a linear manner for drilling operations. It sets up a simple drilling cycle that makes it easy to repeat the process without needing to re-enter all parameters for every single hole, improving efficiency in production.

In practical application, when you use G81, you would typically follow it with other parameters specifying the position, depth of the hole, and the feed rate. This standardization is crucial in manufacturing environments where precision and speed are necessary.

Other G codes mentioned in the choices have different functions. For example, G80 cancels a canned cycle, while G90 sets the machine to absolute positioning mode. G70 relates to turning operations and not milling or drilling. Knowing these distinctions is vital for effective CNC programming and operation.