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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.

Clean and rusted 4140 roller shaft illustrating rust prevention for machined steel parts

How to Prevent Rust on Machined Metal Parts: Surface Treatments, Cleaning, and Packaging

A precision-machined component can meet every dimensional requirement and still arrive unusable if corrosion starts between final inspection and receiving. For mechanical engineers and technical buyers of shafts, housings, manifolds, brackets, tooling components, medical hardware, motion-control parts, semiconductor hardware, and other precision components, “rust prevention” is not just a cosmetic
Titanium CNC turning with coolant

Why Is Titanium Machining Different From Standard CNC Machining?

Titanium machining changes toolpaths, fixturing, cost, and inspection planning. Learn what to define on the drawing before requesting a supplier quote.
CNC machining DFM review with 3D CAD model engineering drawing and machined part

Design for CNC Machining: DFM Principles for RFQ-Ready Parts

Learn how to review CNC part geometry, tool access, workholding, tolerances, materials, finishes, and inspection requirements before sending an RFQ.
Precision machined PEEK components

PEEK vs ULTEM: What’s the Difference and Which Should You Choose?

PEEK and ULTEM are high-performance thermoplastics used when standard plastics cannot provide enough heat resistance, dimensional stability, mechanical performance, or electrical reliability. PEEK is a semi-crystalline polyetheretherketone known for higher-temperature capability, broad chemical resistance, wear performance, fatigue strength, and demanding mechanical service. ULTEM is SABIC’s trade name for polyetherimide (PEI),
CNC machined natural UHMW PE flange style components

UHMW vs ULTEM: What’s the Difference and Which Should You Choose?

UHMW and ULTEM solve very different engineering problems. UHMW-PE is usually selected for low friction, abrasion resistance, impact toughness, quiet sliding, and economical wear performance. ULTEM is SABIC’s trade name for a family of polyetherimide (PEI) resins and is typically considered when stiffness, heat resistance, electrical insulation, and dimensional stability
CNC milling process for amber PEI ULTEM plastic

ULTEM Machining: CNC Guide for PEI 1000, 2300 and Glass-Filled Grades

ULTEM machining is the CNC milling, turning, drilling and finishing of polyetherimide (PEI) stock into precision functional parts. ULTEM is SABIC’s trade name for a family of amorphous PEI resins; the family includes unfilled and reinforced grades that differ substantially in stiffness, tool wear, surface behavior and dimensional response. For
CMM inspection of amber PEI precision part

What Is Ultem 1000? Properties, Machinability, and Applications

Ultem 1000 is an unreinforced, amorphous polyetherimide (PEI) engineering thermoplastic from the ULTEM™ resin family. It combines elevated-temperature performance, inherent flame resistance, electrical insulation, mechanical strength, and dimensional stability in a lightweight material. Natural stock is typically transparent to translucent amber. For engineers and buyers, ULTEM 1000 is most useful
Amber and dark PEI engineering plastic sheets for CNC machining stock

What Is Ultem? Properties, Grades, and Applications of PEI

Ultem is the best-known trade name for polyetherimide (PEI), a high-performance amorphous thermoplastic used when ordinary plastics do not provide enough heat resistance, stiffness, flame performance, electrical insulation, or dimensional stability. Natural unfilled PEI is typically translucent amber, while reinforced, pigmented, and specialty grades may look different. For engineers and
White CNC machined UHMW component installed in an automated assembly and sensor station

Machining UHMW: CNC Machining Guide for UHMW-PE Parts

UHMW-PE can be CNC milled, turned, drilled and routed successfully, but it does not behave like aluminum, steel or even a stiffer engineering plastic such as acetal. The main machining risks are elastic deflection, heat-related dimensional change, long stringy chips, burr or “fuzz” formation and post-machining movement. A reliable process
Custom CNC machined Torlon PAI parts

Torlon Machining: CNC Guide for PAI Parts and Tight-Tolerance Applications

Torlon® machining is a specialized form of high-performance polymer machining. Buyers usually reach this topic with a practical question: can a machine shop produce accurate Torlon PAI parts without creating distortion, burrs, damaged threads, dimensional drift, or avoidable material scrap? The answer is yes, but Torlon should not be treated
Threaded Insert Installation for G10 and FR4 Parts

G10 Machining and Garolite CNC Machining for Precision Composite Parts

G10 machining looks straightforward until the cutting tool actually enters the material. Unlike aluminum or conventional engineering plastics, G10 is a glass-fabric-reinforced epoxy laminate. Its combination of woven glass reinforcement and thermoset resin gives the material useful mechanical strength, electrical insulation, moisture resistance and dimensional stability, but the same glass
machining transparent polycarbonate

Machining Polycarbonate (PC): CNC Tooling, Speeds, Heat Control & Real Cases

Polycarbonate can be CNC milled, turned, drilled, routed, threaded, and polished with good results, but heat, chip evacuation, residual stress, clamping pressure, and chemical compatibility must be controlled. Sharp tools and a correct chip load are more important than copying one fixed RPM from the internet. Polycarbonate (PC) is a
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Clean and rusted 4140 roller shaft illustrating rust prevention for machined steel parts

How to Prevent Rust on Machined Metal Parts: Surface Treatments, Cleaning, and Packaging

A precision-machined component can meet every dimensional requirement and still arrive unusable if corrosion starts between final inspection and receiving. For mechanical engineers and technical buyers of shafts, housings, manifolds, brackets, tooling components, medical hardware, motion-control parts, semiconductor hardware, and other precision components, “rust prevention” is not just a cosmetic
Titanium CNC turning with coolant

Why Is Titanium Machining Different From Standard CNC Machining?

Titanium machining changes toolpaths, fixturing, cost, and inspection planning. Learn what to define on the drawing before requesting a supplier quote.
CNC machining DFM review with 3D CAD model engineering drawing and machined part

Design for CNC Machining: DFM Principles for RFQ-Ready Parts

Learn how to review CNC part geometry, tool access, workholding, tolerances, materials, finishes, and inspection requirements before sending an RFQ.
Precision machined PEEK components

PEEK vs ULTEM: What’s the Difference and Which Should You Choose?

PEEK and ULTEM are high-performance thermoplastics used when standard plastics cannot provide enough heat resistance, dimensional stability, mechanical performance, or electrical reliability. PEEK is a semi-crystalline polyetheretherketone known for higher-temperature capability, broad chemical resistance, wear performance, fatigue strength, and demanding mechanical service. ULTEM is SABIC’s trade name for polyetherimide (PEI),
CNC machined natural UHMW PE flange style components

UHMW vs ULTEM: What’s the Difference and Which Should You Choose?

UHMW and ULTEM solve very different engineering problems. UHMW-PE is usually selected for low friction, abrasion resistance, impact toughness, quiet sliding, and economical wear performance. ULTEM is SABIC’s trade name for a family of polyetherimide (PEI) resins and is typically considered when stiffness, heat resistance, electrical insulation, and dimensional stability
CNC milling process for amber PEI ULTEM plastic

ULTEM Machining: CNC Guide for PEI 1000, 2300 and Glass-Filled Grades

ULTEM machining is the CNC milling, turning, drilling and finishing of polyetherimide (PEI) stock into precision functional parts. ULTEM is SABIC’s trade name for a family of amorphous PEI resins; the family includes unfilled and reinforced grades that differ substantially in stiffness, tool wear, surface behavior and dimensional response. For
CMM inspection of amber PEI precision part

What Is Ultem 1000? Properties, Machinability, and Applications

Ultem 1000 is an unreinforced, amorphous polyetherimide (PEI) engineering thermoplastic from the ULTEM™ resin family. It combines elevated-temperature performance, inherent flame resistance, electrical insulation, mechanical strength, and dimensional stability in a lightweight material. Natural stock is typically transparent to translucent amber. For engineers and buyers, ULTEM 1000 is most useful
Amber and dark PEI engineering plastic sheets for CNC machining stock

What Is Ultem? Properties, Grades, and Applications of PEI

Ultem is the best-known trade name for polyetherimide (PEI), a high-performance amorphous thermoplastic used when ordinary plastics do not provide enough heat resistance, stiffness, flame performance, electrical insulation, or dimensional stability. Natural unfilled PEI is typically translucent amber, while reinforced, pigmented, and specialty grades may look different. For engineers and
White CNC machined UHMW component installed in an automated assembly and sensor station

Machining UHMW: CNC Machining Guide for UHMW-PE Parts

UHMW-PE can be CNC milled, turned, drilled and routed successfully, but it does not behave like aluminum, steel or even a stiffer engineering plastic such as acetal. The main machining risks are elastic deflection, heat-related dimensional change, long stringy chips, burr or “fuzz” formation and post-machining movement. A reliable process
Custom CNC machined Torlon PAI parts

Torlon Machining: CNC Guide for PAI Parts and Tight-Tolerance Applications

Torlon® machining is a specialized form of high-performance polymer machining. Buyers usually reach this topic with a practical question: can a machine shop produce accurate Torlon PAI parts without creating distortion, burrs, damaged threads, dimensional drift, or avoidable material scrap? The answer is yes, but Torlon should not be treated
Threaded Insert Installation for G10 and FR4 Parts

G10 Machining and Garolite CNC Machining for Precision Composite Parts

G10 machining looks straightforward until the cutting tool actually enters the material. Unlike aluminum or conventional engineering plastics, G10 is a glass-fabric-reinforced epoxy laminate. Its combination of woven glass reinforcement and thermoset resin gives the material useful mechanical strength, electrical insulation, moisture resistance and dimensional stability, but the same glass
machining transparent polycarbonate

Machining Polycarbonate (PC): CNC Tooling, Speeds, Heat Control & Real Cases

Polycarbonate can be CNC milled, turned, drilled, routed, threaded, and polished with good results, but heat, chip evacuation, residual stress, clamping pressure, and chemical compatibility must be controlled. Sharp tools and a correct chip load are more important than copying one fixed RPM from the internet. Polycarbonate (PC) is a
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