Trevor Denny Engineering Ltd (T.D.E) 

CNC & Manual Turning

CNC (Computer Numerical Control) and manual turning are both machining processes used in the manufacturing industry.

CNC Turning:

Definition: CNC turning is a machining process where a computer controls the movement of the cutting tool to produce precise and complex shapes on a workpiece.

Process: In CNC turning, the workpiece is mounted on a spindle, and a cutting tool is guided by a computer program to remove material and shape the workpiece according to the design specifications.

Advantages:

High precision and repeatability.

Ability to produce complex geometries.

Automation leads to increased efficiency and productivity.

Manual Turning:

Definition: Manual turning, on the other hand, involves the use of a manually operated lathe to shape the workpiece. The machinist controls the movement of the cutting tool and makes adjustments based on their skill and experience.

Process: In manual turning, the machinist manually adjusts the speed of the lathe, feeds the cutting tool, and monitors the process to ensure accurate results.

Advantages:

Skill-dependent – experienced machinists can achieve high precision.

Well-suited for small-scale production and prototyping.