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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.

CNC machining ferrous and non-ferrous metals

Ferrous vs Non-Ferrous Metals: Differences, Examples, and Manufacturing Uses

This guide helps engineers choose between ferrous and non-ferrous metals by matching alloy grade to part performance and production needs.
CNC end mill cutting metal part

CNC Cutting Tools: Types, Design Limits, and Part Quality Risks

See how end mills, drills, taps, thread mills, and turning inserts affect CNC part design, tool access, inspection, and production risk.
Robot arm handling cast aluminum housing

Cast Aluminum vs Aluminum: Which Material Fits Your Custom Part?

This guide compares cast aluminum and machined aluminum by part shape, production volume, tolerance, finish, and sourcing risk.

Types of Aluminum: CNC Machining Grades, Uses, and Selection Guide

Learn how 6061, 7075, 2024, 5052, and 6063 aluminum compare for CNC machining, forming, finishing, and inspection needs.
Inspection of 52100 steel component

52100 Steel Machining: CNC Guide for Precision Bearing Steel Components

52100 steel is a high-carbon chromium bearing steel known for its exceptional hardness, wear resistance, and rolling contact fatigue resistance. Unlike many general alloy steels, it is typically machined in the annealed condition and finished by precision grinding after heat treatment to achieve tight tolerances. This guide covers its material
CNC machining plastic part on turning machine

CNC Machining vs Injection Molding: How to Choose for Plastic Parts

This guide compares CNC machining and injection molding for plastic parts, showing when each process fits cost, lead time, volume, tolerance, and tooling risk. Use this comparison to choose between machined prototypes, bridge parts, and molded production parts.
Urethane casting parts with silicone mold

Urethane Casting: Process, Materials, Benefits, and Buyer Guide

A practical buyer guide to urethane casting, covering process steps, resin choices, part quality checks, and when to use it for prototypes or low-volume parts.

4340 Steel Machining: CNC Machining Guide for High-Strength Alloy Steel

4340 steel combines high strength, toughness, and fatigue resistance, making it suitable for demanding machined components. This guide explains its material properties, machinability, CNC machining methods, heat-treatment considerations, and common applications. 4340 Alloy Steel: Composition, Properties, and Grades   Chemical Composition 4340 alloy steel belongs to the nickel-chromium-molybdenum family of
CNC machining using CAD model for precision manufacturing

STEP vs STL: Which CAD File Format Should You Use for Manufacturing?

STEP and STL files serve different manufacturing needs. This guide explains when to send STEP, when STL is enough, and how the wrong file can slow quotes or weaken DFM review.
Zinc plating thickness inspection on CNC steel part

Zinc Plating: Benefits, Thickness, and Design Notes for CNC Parts

Learn how zinc plating affects CNC steel parts, including coating thickness, thread fit, masking, passivation, and inspection checks before production.
First article inspection using CMM probe

First Article Inspection: FAI Report and Buyer Checklist

A buyer-focused checklist for reviewing FAI reports, CNC inspection results, traceability records, and production release risks.
Secondary CNC machining of a die cast part

Casting Shrinkage: Causes, Defects, and How to Reduce Part Risk

Casting shrinkage can create hidden voids, sink marks, and machining risk. This guide shows the DFM checks that help keep cast parts usable.
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CNC machining ferrous and non-ferrous metals

Ferrous vs Non-Ferrous Metals: Differences, Examples, and Manufacturing Uses

This guide helps engineers choose between ferrous and non-ferrous metals by matching alloy grade to part performance and production needs.
CNC end mill cutting metal part

CNC Cutting Tools: Types, Design Limits, and Part Quality Risks

See how end mills, drills, taps, thread mills, and turning inserts affect CNC part design, tool access, inspection, and production risk.
Robot arm handling cast aluminum housing

Cast Aluminum vs Aluminum: Which Material Fits Your Custom Part?

This guide compares cast aluminum and machined aluminum by part shape, production volume, tolerance, finish, and sourcing risk.

Types of Aluminum: CNC Machining Grades, Uses, and Selection Guide

Learn how 6061, 7075, 2024, 5052, and 6063 aluminum compare for CNC machining, forming, finishing, and inspection needs.
Inspection of 52100 steel component

52100 Steel Machining: CNC Guide for Precision Bearing Steel Components

52100 steel is a high-carbon chromium bearing steel known for its exceptional hardness, wear resistance, and rolling contact fatigue resistance. Unlike many general alloy steels, it is typically machined in the annealed condition and finished by precision grinding after heat treatment to achieve tight tolerances. This guide covers its material
CNC machining plastic part on turning machine

CNC Machining vs Injection Molding: How to Choose for Plastic Parts

This guide compares CNC machining and injection molding for plastic parts, showing when each process fits cost, lead time, volume, tolerance, and tooling risk. Use this comparison to choose between machined prototypes, bridge parts, and molded production parts.
Urethane casting parts with silicone mold

Urethane Casting: Process, Materials, Benefits, and Buyer Guide

A practical buyer guide to urethane casting, covering process steps, resin choices, part quality checks, and when to use it for prototypes or low-volume parts.

4340 Steel Machining: CNC Machining Guide for High-Strength Alloy Steel

4340 steel combines high strength, toughness, and fatigue resistance, making it suitable for demanding machined components. This guide explains its material properties, machinability, CNC machining methods, heat-treatment considerations, and common applications. 4340 Alloy Steel: Composition, Properties, and Grades   Chemical Composition 4340 alloy steel belongs to the nickel-chromium-molybdenum family of
CNC machining using CAD model for precision manufacturing

STEP vs STL: Which CAD File Format Should You Use for Manufacturing?

STEP and STL files serve different manufacturing needs. This guide explains when to send STEP, when STL is enough, and how the wrong file can slow quotes or weaken DFM review.
Zinc plating thickness inspection on CNC steel part

Zinc Plating: Benefits, Thickness, and Design Notes for CNC Parts

Learn how zinc plating affects CNC steel parts, including coating thickness, thread fit, masking, passivation, and inspection checks before production.
First article inspection using CMM probe

First Article Inspection: FAI Report and Buyer Checklist

A buyer-focused checklist for reviewing FAI reports, CNC inspection results, traceability records, and production release risks.
Secondary CNC machining of a die cast part

Casting Shrinkage: Causes, Defects, and How to Reduce Part Risk

Casting shrinkage can create hidden voids, sink marks, and machining risk. This guide shows the DFM checks that help keep cast parts usable.
Load More

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