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From the business, for the world: News about Rollyu

What's happening in the CNC industry and Rollyu? What trends and innovations shouldn’t be missed? Learn more and check out rollyu's news.

High-temperature steel pour into a sand mold, showing risers and molten flow

Types of Casting: Which One Should You Choose

According to a 2023 China Foundry Association report, factories produced nearly 52 million tons of metal castings. U.S. steelmakers used over 41 million tons of scrap just to keep up. Demand is high because metal components need to be strong and cost effective to make. But with the global market
Boring vs drilling overview a drill creating a hole and a boring tool refining an existing bore

Boring vs Drilling: Differences, Benefits, and Applications

Drilling gets the hole started, but a rigid boring tool is what actually corrects tool wander and locks in your final dimensions.
deep hole drilling on a machine showing guided drill making a long straight bore

Deep Hole Drilling: Definition, Types and Applications

Standard drills struggle with long bores, so use this guide to match your hole diameter with the exact drilling method you need.
precision ball bearing with CNC-machined races

Types of Bearings: Materials, Differences and Custom Manufacturing

Stop bearing failures. Learn to match types and materials, and see why CNC machining guarantees tight tolerances.
gear manufacturing

Types of Gears: Differences, Applications and Custom Manufacturing Guide

Learn how to select the right gear design and material for your specific application, and see why CNC machining outperforms traditional manufacturing methods.
split image showing a chamfered metal edge labeled “Chamfer” and a rounded edge labeled “Fillet”

Chamfer vs Fillet: What Are They and How to Choose

Learn the difference between chamfers and fillets to see how your choice affects machining costs and part strength.
side-by-side comparison: riveted aircraft skin and smooth weld bead illustrating riveting vs welding

Riveting vs Welding: What’s the Difference and How to Choose?

Compare the pros and cons of riveting and welding to help you choose the right joining method for your engineering needs.
CNC lathe performing precision turning on a metal shaft — example of automated machining process

CNC Turning: Definition, Process and Application

A comprehensive guide to the CNC turning process, covering machine types, material selection, and strategies for manufacturing precise cylindrical components.
CNC milling machine cutting aluminum block with high-speed spindle and coolant, representing precision manufacturing

What Is Milling? Types, Uses, and Applications

Learn how CNC milling turns digital designs into physical parts with this guide on machine types, material properties, and industrial uses.
tack welding close-up showing small temporary weld bead aligning two metal plates

Tack Welding: Types, Pros and Cons, and When to Use It

Tack welding is the foundation of a structural joint. Learn to select the correct type, manage heat, and distinguish it from spot welding.
miniature rivets securing electronic circuit board inside compact housing

What Is a Rivet? Types, Uses, and How It Works

Rivets provide permanent, vibration-resistant joints for high-stress builds. This article covers common types and the precision needed for a secure fit.
cast iron parts

Cast Iron vs Steel: Key Differences and How to Choose

Cast iron is great for heavy, stationary parts that need stiffness and vibration control. Steel is the better pick when strength, shock loads, and safety margins matter.
Load More
High-temperature steel pour into a sand mold, showing risers and molten flow

Types of Casting: Which One Should You Choose

According to a 2023 China Foundry Association report, factories produced nearly 52 million tons of metal castings. U.S. steelmakers used over 41 million tons of scrap just to keep up. Demand is high because metal components need to be strong and cost effective to make. But with the global market
Boring vs drilling overview a drill creating a hole and a boring tool refining an existing bore

Boring vs Drilling: Differences, Benefits, and Applications

Drilling gets the hole started, but a rigid boring tool is what actually corrects tool wander and locks in your final dimensions.
deep hole drilling on a machine showing guided drill making a long straight bore

Deep Hole Drilling: Definition, Types and Applications

Standard drills struggle with long bores, so use this guide to match your hole diameter with the exact drilling method you need.
precision ball bearing with CNC-machined races

Types of Bearings: Materials, Differences and Custom Manufacturing

Stop bearing failures. Learn to match types and materials, and see why CNC machining guarantees tight tolerances.
gear manufacturing

Types of Gears: Differences, Applications and Custom Manufacturing Guide

Learn how to select the right gear design and material for your specific application, and see why CNC machining outperforms traditional manufacturing methods.
split image showing a chamfered metal edge labeled “Chamfer” and a rounded edge labeled “Fillet”

Chamfer vs Fillet: What Are They and How to Choose

Learn the difference between chamfers and fillets to see how your choice affects machining costs and part strength.
side-by-side comparison: riveted aircraft skin and smooth weld bead illustrating riveting vs welding

Riveting vs Welding: What’s the Difference and How to Choose?

Compare the pros and cons of riveting and welding to help you choose the right joining method for your engineering needs.
CNC lathe performing precision turning on a metal shaft — example of automated machining process

CNC Turning: Definition, Process and Application

A comprehensive guide to the CNC turning process, covering machine types, material selection, and strategies for manufacturing precise cylindrical components.
CNC milling machine cutting aluminum block with high-speed spindle and coolant, representing precision manufacturing

What Is Milling? Types, Uses, and Applications

Learn how CNC milling turns digital designs into physical parts with this guide on machine types, material properties, and industrial uses.
tack welding close-up showing small temporary weld bead aligning two metal plates

Tack Welding: Types, Pros and Cons, and When to Use It

Tack welding is the foundation of a structural joint. Learn to select the correct type, manage heat, and distinguish it from spot welding.
miniature rivets securing electronic circuit board inside compact housing

What Is a Rivet? Types, Uses, and How It Works

Rivets provide permanent, vibration-resistant joints for high-stress builds. This article covers common types and the precision needed for a secure fit.
cast iron parts

Cast Iron vs Steel: Key Differences and How to Choose

Cast iron is great for heavy, stationary parts that need stiffness and vibration control. Steel is the better pick when strength, shock loads, and safety margins matter.
Load More

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