CNC Knowledge

Explain the basic operation of a CNC machine.

• A CNC machine operates by using telekinesis to move the cutting tool or workpiece.

• A CNC machine operates by using voice commands to move the cutting tool or workpiece.

• A CNC machine operates by using manual control to move the cutting tool or workpiece.

• A CNC machine operates by using computer numerical control to move the cutting tool or workpiece to perform various machining operations.

What is G-code and how is it used in CNC programming?

• G-code is a software used to design 3D models for CNC machines

• G-code is a language used to control the movement and operation of CNC machines.

• G-code is a type of barcode used in CNC programming

• G-code is a type of tool used to measure the accuracy of CNC machines

What are the different types of CNC tooling and their applications?

• Pliers, screwdrivers, wrenches, and hammers, each used for different types of woodworking

• The different types of CNC tooling include end mills, drills, reamers, and taps, each with specific applications in cutting, drilling, and shaping materials.

• Screwdrivers, hammers, wrenches, and pliers, each used for different types of welding

• Saws, sanders, planers, and routers, each used for different types of painting

List three safety procedures to be followed while operating a CNC machine.

• Ignoring lockout/tagout procedures

• Wearing appropriate personal protective equipment (PPE), following lockout/tagout procedures, and being trained in machine operation.

• Operating the machine without any training

• Not wearing any protective equipment

What are the key maintenance tasks for keeping a CNC machine in good working condition?

• Replacing the electrical components every few months

• Regular cleaning, lubrication, calibration of tools, and inspection of electrical components

• Never cleaning or lubricating the machine

• Using the machine at maximum speed at all times

Provide three examples of industries or applications where CNC machines are commonly used.

• Construction, education, and entertainment

• Automotive, aerospace, and medical device manufacturing

• Textile, tourism, and telecommunications

• Agriculture, fashion, and food processing

What are the main components of a CNC machine and their functions?

• Keyboard, mouse, monitor, printer, and scanner

• Oven, microwave, refrigerator, dishwasher, and blender

• Control panel, spindle, tool holder, worktable, and axis movement system

• Engine, wheels, steering wheel, seats, and windows

Explain the difference between CNC milling and CNC turning.

• CNC milling involves cutting and drilling materials using a rotating cylindrical cutting tool, while CNC turning involves shaping materials using a cutting tool that moves in a linear fashion.

• CNC milling and CNC turning are the same process with different names

• CNC milling and CNC turning both use rotating cylindrical cutting tools to shape materials

• CNC milling involves shaping materials using a cutting tool that moves in a linear fashion, while CNC turning involves cutting and drilling materials using a rotating cylindrical cutting tool

What are the potential hazards associated with CNC machining and how can they be mitigated?

• Encouraging reckless behavior in the workplace

• Not providing any safety measures

• Using proper personal protective equipment, implementing machine guarding, and providing adequate training for operators.

• Leaving the machines unattended

Describe the process of setting up a CNC machine for a new job.

• Painting the workpiece, adjusting the lighting, and taking a coffee break

• Securing the workpiece, setting the work offsets, loading the CNC program, and running a test to ensure everything is set up correctly.

• Sweeping the floor, organizing the tools, and checking emails

• Asking a colleague for help, reading the manual, and guessing the settings