Rollyu Blog | Custom Machining & Services

Blog

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.

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.
performing bead blasting on CNC machined metal parts for a uniform satin finish

Bead Blasting: What It Is and How to Design CNC Parts for It

Bead blasting delivers a clean, satin-matte look while keeping CNC dimensions stable. This article covers media selection and design rules to avoid warping, trapped beads, and tolerance risk.
acetal vs delrin

Acetal vs. Delrin: Key Machining and Performance Differences

Delrin offers raw strength, while Acetal provides chemical stability. This guide breaks down the performance differences to help you avoid part failure and unnecessary costs.
Close-up of 4130 and 4140 steel bars side by side representing alloy comparison

4140 vs 4130 Steel: Which Alloy is Best for Your Project?

Choosing between 4130 and 4140 affects strength, wear life, and manufacturing risk across machining, heat treat, and welding. 4130 suits welded or formed structures for toughness and fabrication ease, while 4140 is preferred for higher strength and wear resistance after heat treat.
Load More
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.
performing bead blasting on CNC machined metal parts for a uniform satin finish

Bead Blasting: What It Is and How to Design CNC Parts for It

Bead blasting delivers a clean, satin-matte look while keeping CNC dimensions stable. This article covers media selection and design rules to avoid warping, trapped beads, and tolerance risk.
acetal vs delrin

Acetal vs. Delrin: Key Machining and Performance Differences

Delrin offers raw strength, while Acetal provides chemical stability. This guide breaks down the performance differences to help you avoid part failure and unnecessary costs.
Close-up of 4130 and 4140 steel bars side by side representing alloy comparison

4140 vs 4130 Steel: Which Alloy is Best for Your Project?

Choosing between 4130 and 4140 affects strength, wear life, and manufacturing risk across machining, heat treat, and welding. 4130 suits welded or formed structures for toughness and fabrication ease, while 4140 is preferred for higher strength and wear resistance after heat treat.
Load More

Outstanding Achievements and Partnerships

We take pride in our outstanding achievements and strong partnerships. Our commitment to great communication, service, and integrity has led to excellent results.
Join us as a valued partner, and together, we can make a positive impact on CNC.
GET FREE QUOTE

Contact Us