CNC Turning Basics

What are the common types of tooling used in CNC turning?

• turning tools, boring bars, drills, grooving tools

• milling cutters

• lathe chucks

• end mills

Explain the concept of speeds and feeds in CNC turning.

• Speeds and feeds in CNC turning refer to the rate at which the cutting tool moves (speed) and the rate at which the material is removed (feed). Speed is measured in RPM (revolutions per minute) and feed is measured in inches per minute (IPM). Optimizing speeds and feeds is crucial for achieving efficient and accurate machining.

• Speeds and feeds in CNC turning are only important for manual machining

• Speeds and feeds in CNC turning are related to the temperature of the machine

• Speeds and feeds in CNC turning refer to the color of the material being machined

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

• G-Code programming is a method of manual operation in CNC turning machines

• G-Code programming is a type of software used for designing CNC turning tools

• G-Code programming is a language used to control CNC machines by providing instructions for tool movement, speed, and other parameters. In CNC turning, G-Code is used to specify the toolpath and operations for the lathe to follow.

• G-Code programming is only used for CNC milling, not turning operations

Discuss some workholding techniques used in CNC turning.

• Vices, soft jaws, lathe dogs

• Chucking, collet systems, faceplates, and mandrels

• Jigs, fixtures, steady rests

• Clamping, indexing heads, tailstocks

How would you troubleshoot common issues in CNC turning?

• Singing a song to the CNC machine

• Consulting a psychic for advice

• Checking the weather forecast

• Troubleshooting common issues in CNC turning involves checking tooling, workpiece, cutting parameters, alignment, and programming errors.

What are CNC canned cycles and how do they improve efficiency in turning operations?

• CNC canned cycles are commands that increase errors and slow down turning operations.

• CNC canned cycles are only suitable for complex machining operations, making them inefficient for simple tasks.

• CNC canned cycles are pre-programmed commands that automate common machining operations in turning, improving efficiency by reducing programming time, minimizing errors, and optimizing tool paths.

• CNC canned cycles are manual operations that require constant supervision in turning, leading to inefficiencies.

Describe the different CNC turning operations.

• Boring, reaming, counterboring

• Facing, roughing, finishing, threading, grooving, and parting.

• Drilling, chamfering, knurling

• Milling, grinding, broaching

What is the purpose of a lathe tool in CNC turning?

• To remove material from a workpiece and create the desired shape or finish.

• To play music

• To cook dinner

• To water the plants

How does the choice of cutting tool material impact CNC turning operations?

• The choice of cutting tool material has no impact on CNC turning operations.

• Using any cutting tool material results in the same machining efficiency.

• Cutting tool material affects the color of the final product in CNC turning operations.

• The choice of cutting tool material affects cutting speed, tool life, surface finish, and machining efficiency.

Explain the importance of chip control in CNC turning.

• Chip control helps in managing the size, shape, and evacuation of chips during the turning process, reducing the risk of chip entanglement, tool wear, and surface defects.

• Chip control is not necessary in CNC turning

• Chip control only affects the aesthetics of the final product

• Chip control increases the risk of tool breakage