CNC
CNC stands for Computer Numerical Control, which is a method of controlling manufacturing machines using computers. Think of it like a very precise robot that can create parts by following computer instructions. Instead of a person manually operating the machine, a computer program tells the machine exactly how to cut, drill, or shape materials like metal, wood, or plastic. This technology is widely used in manufacturing everything from car parts to furniture. When you see CNC on a resume, it usually means the person knows how to program, set up, or operate these computerized manufacturing machines.
Examples in Resumes
Programmed and operated CNC machines to produce precision automotive parts
Managed a team of 5 CNC operators in a high-volume manufacturing facility
Reduced production time by 30% through optimized CNC programming
Set up and maintained CNC equipment for aerospace component manufacturing
Typical job title: "CNC Machinists"
Also try searching for:
Where to Find CNC Machinists
Professional Organizations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How would you improve efficiency in a CNC manufacturing operation?
Expected Answer: A senior candidate should discuss optimization strategies like improving programming efficiency, reducing setup times, implementing preventive maintenance, and training team members. They should also mention experience with lean manufacturing principles.
Q: How do you handle quality control in CNC production?
Expected Answer: Look for answers about inspection procedures, measuring tools usage, understanding technical drawings, and experience with quality management systems. They should also mention problem-solving examples from past work.
Mid Level Questions
Q: What steps do you take when setting up a new job on a CNC machine?
Expected Answer: They should describe reviewing blueprints, selecting proper tools, setting up work-holding devices, and checking the program before running production parts.
Q: How do you troubleshoot common CNC machine problems?
Expected Answer: Candidate should explain basic problem-solving steps, like checking tool wear, adjusting speeds and feeds, and basic maintenance procedures they've handled.
Junior Level Questions
Q: What safety procedures do you follow when operating CNC machines?
Expected Answer: Should mention basic safety practices like wearing proper protective equipment, emergency stop procedures, and maintaining a clean work area.
Q: Can you explain the basic steps of operating a CNC machine?
Expected Answer: Should describe basic operations like loading material, starting the program, monitoring the process, and basic quality checks.
Experience Level Indicators
Junior (0-2 years)
- Basic machine operation
- Reading simple blueprints
- Basic safety procedures
- Quality inspection basics
Mid (2-5 years)
- Program editing and optimization
- Setup and tooling selection
- Basic troubleshooting
- Understanding complex blueprints
Senior (5+ years)
- Advanced programming
- Process optimization
- Team leadership
- Complex problem solving
Red Flags to Watch For
- No hands-on machine operation experience
- Inability to read basic blueprints
- Lack of safety awareness
- No experience with measuring tools
- Poor understanding of quality control
