CNC Machining Processes Guide: Milling, Turning, EDM & Multi-Axis

CNC machining is not one process but a family of them — milling, turning, drilling, grinding, electrical discharge (EDM) and multi-axis work — each suited to different part geometry, tolerances and volumes.

This guide compares the main CNC processes and shows how to match each one to your part. Every article below links to a focused walkthrough.

In this guide

CNC vs Forging: How to Choose the Right ProcessCNC Axes Explained: X, Y, Z and Rotational Motion5-Axis Workholding Strategies That Boost Productivity3+2 Machining: Positional 5-Axis CNC ExplainedCoolant in CNC Machining: Types and BenefitsCNC Tool Wear: Monitoring and ManagementUnderstanding CNC Feed and Speed: Formulas and TipsCNC vs Conventional Machining: Key DifferencesCNC Machining History: From Punched Tape to 5-AxisHow CNC Machines Work: A Simple ExplanationCNC Fixtures and Tooling: In-House Manufacturing3-Axis vs 4-Axis vs 5-Axis CNC: Full ComparisonCNC Milling vs Grinding: Surface Finish DifferencesCNC vs Waterjet Cutting: A Practical ComparisonCNC vs Manual Machining: Which Do You Need?CNC Machining vs Wire EDM: Choosing Your ProcessWhat Is CNC Machining? The Complete DefinitionCNC Machining for Beginners: A Friendly GuideCNC Machining vs 3D Printing for ProductionCNC Machining vs Injection Molding: A Practical GuideCNC Machining vs Casting: Which Process Fits?Laser Engraving for Machined Parts: Marking GuideDeep Hole Drilling: Techniques and ChallengesMachining Centers: VMC vs HMC ExplainedCNC Machining Equipment: What to Look ForWire EDM Machining: When to Use ItCNC Milling vs Laser Cutting: Which Process Wins?CNC Cutting Service: Precision Cutting ExplainedVacuum Casting vs Injection Molding: Choosing the ProcessVacuum Casting Service: A Complete GuideLarge CNC Machining: Handling Oversized PartsGantry CNC Machining: Large Format Precision5-Axis vs 3-Axis CNC Machining: Which Do You Need?5-Axis CNC Machining Benefits: Why Fewer Setups MatterCNC Turning Operations: Facing, Boring, Threading and MoreCNC Turning Process: From Setup to Finished PartFace Milling vs End Milling: What’s the Difference?CNC Milling Process: Types of Milling Operations ExplainedCNC Machining for Robotics and Automation ComponentsCNC Machining vs 3D Printing: Which Should You Choose?4-Axis CNC Machining: Capabilities and When to Use ItSwiss CNC Machining: Precision for Small Complex PartsCNC Turning Services: A Complete Guide to Lathe MachiningCNC Milling vs CNC Turning: What’s the Difference?5-Axis CNC Machining: Capabilities, Benefits, and When to Use ItTrochoidal Milling: Smarter Slotting and Deep PocketingToolholder Types: HSK, CAT, and ER Guide for CNC ShopsCNC Spindle Types: Belt, Direct-Drive, and Built-InSoft Jaws for CNC: A Complete Machining GuideSimultaneous 5-Axis Machining for Complex CNC PartsCNC Setup Cost vs Per-Piece Cost: How Quotes WorkNRE Fees Machining: What Buyers Should ExpectMultitasking Machining: Done-in-One CNC ProductionMicro Machining: Precision CNC Solutions for Tiny PartsLive Tooling Turning for Mill-Turn CNC PartsImpeller Machining: 5-Axis CNC for Bladed ComponentsHigh Speed Machining: Principles, Benefits, and Best UsesGun Drilling Services for Precision Deep-Hole CNC