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CNC Machining Blog

The YuanYi blog shares practical knowledge from our day-to-day experience in CNC machining and precision manufacturing. We write to help engineers, designers, and buyers better understand materials, machining methods, tolerances, surface finishes, and part design, making it easier to plan projects and make better manufacturing decisions.

Comparison of aligned and misaligned axes on a precision stepped shaft
Concentricity in GD&T: Meaning, Measurement & Alternatives

Concentricity in GD&T describes how the centers of circular features relate to a common reference axis....

Machine screw size chart showing metric screw sizes, lengths, and different head types
Machine Screw Size Chart: US & Metric Diameters, Thread Sizes and Measurement Guide

Machine screws are threaded fasteners commonly used to assemble metal components, machinery, electronics, and precision equipment....

Metal hardness illustration comparing indentation depth in softer and harder metals
Hardness of Materials: Types, Testing Methods, Charts, and Applications

Material hardness is the ability of a material to resist localized permanent deformation, such as indentation,...

Comparison of internal and external thread milling processes on CNC machined metal components
Thread Milling: Process, Types, Advantages, and Tapping Comparison

Thread milling is a CNC machining process used to produce internal and external threads with a...

Powder coating vs painting comparison on identical CNC machined aluminum housings
Powder Coating vs Painting: Which Is Better for Metal Parts?

Powder coating generally offers better durability, scratch resistance, and cost efficiency for high-volume metal parts. Painting...

Common welding defects including cracks, porosity, undercut, slag inclusion, lack of fusion, and incomplete penetration
12 Common Types of Welding Defects: Causes and Prevention

Welding defects are imperfections that can affect the strength, appearance, dimensional accuracy, or reliability of a...

Young's modulus and stress-strain curve explaining material stiffness
Stiffness of Material: Definition, Young’s Modulus, and Stiffness vs. Strength

Material stiffness describes how strongly a material resists elastic deformation when a force is applied. A...

Metal heat treatment process showing heating soaking and controlled cooling
Heat Treatment of Metals: Processes, Types & CNC Machining Guide

Heat treatment of metals is a controlled process of heating, holding, and cooling metal to change...

Thin gauge vs thick gauge sheet metal thickness comparison
Thin Gauge vs Thick Gauge Sheet Metal: Differences, Costs & How to Choose

Choosing between thin gauge and thick gauge sheet metal affects more than part strength. Thickness also...

Common casting defects including porosity, shrinkage, inclusions, cold shuts, hot tears and flash
Casting Defects: 18 Common Types, Causes and How to Prevent Them

Casting defects are unwanted irregularities that affect the appearance, dimensions, strength, or performance of a cast...

Common types of fasteners including bolts, screws, nuts, washers, studs, rivets, pins and threaded inserts
Types of Fasteners: 12 Common Types and How to Choose Them

Fasteners are mechanical components used to join, secure, locate, or retain two or more parts. Common...

CNC milling operations on a machined aluminum part
12 Types of Milling Operations: Processes, Uses, and How to Choose

Milling operations are different ways a rotating cutting tool removes material to create specific features on...

Does stainless steel rust and corrosion resistance comparison
Does Stainless Steel Rust? Stainless Steel Corrosion Explained Introduction

yes, stainless steel can rust, but it is much more resistant to corrosion than ordinary steel....

Does aluminum rust and aluminum oxidation comparison
Does Aluminum Rust? Aluminum Corrosion Explained

Aluminum does not rust in the same way as iron or steel.When aluminum comes into contact...

Does brass tarnish and brass oxidation stages
Does Brass Tarnish or Rust? Brass Oxidation Explained

Brass can tarnish over time, but it does not corrode like iron or steel.Since brass is...

Calculate the spindle speed for CNC turning.
CNC Turning Center Specifications: A Complete Guide

The specifications of a CNC turning center determine the types of parts it can machine, as...

polished stainless steel CNC machined parts with mirror finish
How to Polish Stainless Steel Parts: CNC Surface Finishing Guide

Stainless steel is commonly used in various industries such as aerospace, medical, automotive, food processing, and...

cobalt metal samples and engineering material overview
What Is Cobalt Metal Used For? Properties, Uses & Applications

Cobalt is a hard, silver-gray transition metal recognized for its strong structural qualities, magnetic characteristics, resistance...

rare earth metals samples and elements overview
What Are Rare Earth Metals? Properties, Types and Uses

Rare earth metals are a group of metallic elements that are known for having special magnetic,...

titanium metal material and CNC machined titanium components for precision manufacturing
What Is Titanium? Properties, Alloys & CNC Machining Guide

Titanium is a light yet strong metal that is highly resistant to corrosion and offers a...

CNC machined aluminum parts and raw aluminum material in a precision manufacturing workshop
Is Aluminum a Metal? Properties, Types and CNC Machining Applications

Aluminum is indeed a metal.It is a light metal that does not corrode easily and is...

How to Remove Rust from Metal
How to Remove Rust from Metal: DIY & Industrial Guide

Rust can be found in many places, such as kitchen knives, gardening tools, car parts, and...

Aluminum alloy comparison chart
5052 vs 6061 vs 7075 Aluminum: Which Alloy Should You Choose?

When comparing 5052, 6061, and 7075 aluminum, no single material is suitable for all applications. 5052...

Polish Aluminum
How to Polish Aluminum: Step-by-Step Guide to a Mirror Finish

Aluminum can typically be restored to its original luster and given a smooth or even mirror-like...

CNC cutting tools selection guide for precision machined parts
CNC Cutting Tools: Types, Materials, Coatings, and Selection Guide

CNC cutting tools are the tools that physically remove material during milling, turning, drilling, boring, threading,...

What is a bottoming tap
What Is a Bottoming Tap? A Guide to Blind Hole Threading

A bottoming tap is a thread-cutting tool with a very short chamfer, typically about 1–2 threads....

Types of CNC machines
Types of CNC Machines: 9 Common Types and How to Choose

The main types of CNC machines include CNC mills, lathes, Swiss machines, mill-turn centers, gantry machines,...

Counterbore vs countersink
Counterbore vs Countersink: Differences, Uses & How to Choose

A counterbore and a countersink are both recessed hole features used to seat fastener heads, but...

NPT thread size chart with dimensions TPI and tap drill sizes
NPT Thread Size Chart: Dimensions, TPI & Tap Drill Sizes

NPT (National Pipe Taper) is a 60° tapered pipe thread commonly used for fluid, pneumatic, and...

Honing process
Honing Process: How It Works, Types, Tolerances & Applications

Honing is a precision abrasive machining process mainly used to finish internal bores. A honing tool...

6 Essential Wood Lathe Turning Tools
6 Essential Wood Lathe Turning Tools and What They Are Used For

The six essential wood lathe turning tools are a spindle roughing gouge, spindle gouge, bowl gouge,...

38-16 tap drill size guide showing drill bit and threaded hole
3/8-16 Tap Drill Size: Complete CNC Machining Guide

When making a threaded hole, it is important to select the right drill size to ensure...

CNC machining engineering drawing guide
Engineering Drawing Symbols and Abbreviations: Complete Guide for CNC Machining

When you send a CNC machining project to a manufacturer, one of the first things engineers...

CNC machining software workflow showing CAD CAM programming, toolpath simulation, and CNC manufacturing process
How CNC Machining Software Improves Production Efficiency

CNC machining software improves production efficiency by helping engineers create better toolpaths, reduce programming time, prevent...

Examples of CNC machined parts made with a CNC machine including metal brackets, housings, shafts, and industrial components
What Can You Make With a CNC Machine? CNC Products & Applications

A single CNC machine is capable of producing thousands of different items, ranging from simple brackets...

CNC milling machine engraving a precision aluminum part
Can a CNC Machine Engrave Metal?

Yes. CNC machine tools can not only machine metal parts, but also engrave text, numbers, logos,...

CNC machining datum reference showing precision part positioning
What Are Datums in CNC Machining? Definition, Types, and Applications

A datum in CNC machining serves as a theoretical reference point, line, or plane that helps...

CNC machining tolerances inspection using CMM measurement
CNC Machining Tolerances: Standards and Accuracy

Modern CNC machining tolerances are influenced by several factors such as the machine’s performance, the characteristics...

CNC wire EDM machine cutting a metal workpiece in a precision machining workshop
What Is a CNC Wire Cut Machine? Wire EDM Process Explained

Wire EDM is like slowly cutting through a metal material with a “live wire.” Its cutting...

CNC milling center
What Is a CNC Machine Shop?

A CNC machine shop is a manufacturing facility that uses CNC machine tools to produce custom...

Engineer reviewing a CAD model for 5-axis CNC machining design and DFM analysis
How to Design Parts for 5 Axis CNC Machining: Practical DFM Tips

Five-Axis Machining does indeed allow access to parts from multiple angles and reduces the number of...

5-axis CNC programming with CAM toolpaths for complex aluminum part
What Is 5-Axis CNC Programming? Toolpaths, CAM & Simulation

5-axis CNC programming is the process of creating toolpaths for a 5-axis CNC machine. The programmer...

What is Rapid Prototyping
What Is Rapid Prototyping? Methods & CNC Applications

Rapid prototyping plays an important role in the development of products.It allows for the fast production...

What is broaching machining
What Is Broaching Machining? How It Works, Types & Common Applications

In modern mechanical manufacturing, CNC milling and CNC turning are widely known, while broaching machining is...

What Is a CNC Router Machine
What Is a CNC Router Machine? Everything You Need to Know

A CNC router is a machining device that uses computer programs to automatically control the movement...

What Is Electron Beam Machining
What Is Electron Beam Machining? Process, Advantages & Applications

Electron Beam Machining is a high-precision, non-traditional machining process that utilizes the high energy generated by...

What Is Runout in Machining
What Is Runout in Machining? Causes, Effects & How to Reduce It

In CNC machining, even if the machine tool has very high precision, runout in the cutting...

How to Program a CNC Machine
How to Program a CNC Machine: A Beginner’s Guide

CNC programming typically involves creating a CAD model, generating toolpaths in CAM software, outputting G-code, and...

grizzly g8689
Grizzly G8689 Ultimate Guide: Master Your Drill Mill for Precision Workshop Projects

Explore the complete guide to Grizzly G8689 drill mill. Learn about key features, industry applications and...

5 axis cnc
5 Axis CNC Explained: Your Complete Guide to Multi-Side Precision Machining

Master 5 axis cnc machining with our complete guide. Explore best practices, technical specs, and solutions...

5 axis mills
5 Axis Mills Explained: Your Desktop Guide to Professional Multi-Sided Machining

Master 5 axis mills with our complete guide to desktop CNC milling. Unlock best practices, key...

what is cnc
What is CNC? The Friend’s Guide to the Brains Behind Modern Manufacturing

Explore the ultimate guide to CNC systems. Learn what CNC (Computer Numerical Control) is, its core...

cnc ma
CNC Machine Buying Guide: What You Need to Know Before Making a Purchase

Explore the ultimate guide to purchasing CNC machines. Learn about key specifications, industry applications, and best...

cnc kopen
The Ultimate Guide to CNC Kopen: Key Features and Considerations

Thinking about buying a CNC machine? You’ve come to the right place! This guide will help...

cnc router
Complete Guide to CNC Router Machines: A Beginner’s Handbook

Unlock the full potential of CNC router technology. Our complete guide covers best practices, key features,...

commercial cnc
How to Choose the Right Commercial CNC Machine for Your Business

Looking to enhance your manufacturing process with a reliable CNC router supplier? Our complete guide walks...

x carve cnc
How to Choose the Best X Carve CNC for Your Workshop

Master your projects with our Complete Guide to X Carve CNC. Discover best practices, key features,...

x carve cnc machine
The Complete Guide to X Carve CNC Machine for Beginners

Learn everything you need to know about X Carve CNC routers. Explore their performance, features, and...

cnc machine business
How to Start Your Own CNC Machine Business: A Complete Guide

Discover the essentials of running a CNC machine side hustle. Learn best practices, technical specifications, and...

lathes made in usa
Why Choose Lathes Made in the USA? Benefits for Your Workshop

Learn everything you need to know about American-made metal lathes. Discover key features, best practices, and...

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