Our CNC Mill-Turning Services

Transform your complex part production with our CNC Mill-Turning services—the ultimate multi-tasking machining solution that combines milling and turning in one setup. Using advanced mill-turning centers, we craft high-precision components (tolerances down to ±0.001mm) from metals, compósitos, and exotic materials—eliminating repositioning errors, cutting lead times, and delivering consistent results for aerospace, médico, e indústrias automotivas. Whether you need cylindrical parts with intricate milled features or custom components requiring both turning and milling, our single-setup approach boosts efficiency without compromising quality.​

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What Is CNC Mill-Turning?

CNC Mill que vira—also called multi-tasking machining—is an advanced manufacturing tecnologia that integrates both turning and milling operations into a single mill-turning center. Ao contrário da usinagem tradicional (which requires separate lathes for turning and mills for milling, plus manual part repositioning), it lets you complete complex parts in one setup—reducing errors, economizando tempo, e melhorar a consistência.

O Visão geral do processo revolves around a hybrid machine: UM mill-turning center combines a rotating spindle (for turning cylindrical features) with multi-axis tool turrets (for milling flat surfaces, furos de perfuração, or adding slots). The part is held in a chuck or collet, rotated by the spindle (virando), while tools move along linear (X, Y, Z) and rotational (UM, C) axes to add milled features—all under CNC control.​

To explain “como funciona” simply: Imagine a machine that can first turn a metal bar into a shaft (cylindrical turning), then immediately mill a slot on its side, drill cross-holes, and add threads—all without moving the part to another machine. Por exemplo, a medical bone screw (which needs a turned cylindrical body, milled flat drive, and threaded end) can be fully machined in one run. This seamless combination of turning and milling is what makes CNC Mill que vira ideal for parts with both rotational and prismatic features.

Our CNC Mill-Turning Capabilities

We offer comprehensive mill-turning capabilities tailored to complex part requirements, com foco em níveis de precisão, tolerance achievements, and multi-tasking flexibility. Below is a detailed breakdown of our key capacities:​

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Se você precisa 100 titanium aerospace shafts (with milled keyways) ou 50,000 brass electronics connectors (with turned bodies and milled slots), our mill-turning capabilities scale to match your project’s complexity.

The CNC Mill-Turning Process (Passo a passo)

Nosso processo passo a passo is optimized to leverage the multi-tasking power of mill-turning centers, ensuring efficiency and precision from design to finish:​

1. Design and CAD Modeling: We start by reviewing your CAD model (or creating one from sketches) to identify all features—turned diameters, milled slots, buracos, etc.. Our engineers optimize the design for mill-turning—e.g., ensuring milled features are accessible without spindle interference and turning diameters are compatible with chuck size. Para peças complexas, we use 3D simulation to test tool paths.​

2. Programação de came: The CAD model is imported into CAM software (Mastercam Mill-Turn, Gibbscam) to generate integrated Caminhos da ferramenta for both turning and milling. We sequence operations logically: first turning (to create the cylindrical base), then milling/drilling (to add prismatic features), and finally finishing (polishing/threading). We also program C-axis rotation (for angular milling) and live tooling activation.​

3. Setup and Calibration: The raw material (bar stock or blank) is loaded into the machine’s chuck/collet. We calibrate the spindle (for turning speed) and tool turret (for milling accuracy) using laser measuring tools. Cutting tools are loaded into the turret, e coolant systems are activated—directed to both turning and milling zones. A test part is run to verify tolerances and tool alignment.​

4. Turning Execution: The spindle rotates the part, and turning tools move along the Z (comprimento) and X (diâmetro) axes to shape cylindrical features—OD (diâmetro externo), EU IA (inner diameter), afastados, ou chamfers. For long parts, a tailstock provides additional support to prevent deflection.​

5. Milling Execution: After turning, the spindle stops rotating (or indexes to a fixed angle via C-axis), and the tool turret moves along X/Y/Z (and A/B if needed) to mill flat surfaces, slots, bolsos, or drill holes. Live tooling (rotating tools in the turret) enables drilling and tapping without repositioning.​

Post-Machining Inspection: Parts undergo rigorous controle de qualidade—we measure turning dimensions (diameter/length) with micrometers, milling features (slot depth/hole position) com cmms, and check surface finish with profilometers. Parts requiring finishing move to Deburrendo ou polimento.

Materials We Work With

CNC Mill que vira excels with a wide range of materials, though tool selection and parameters vary based on material hardness and machinability. Below is a breakdown of our supported materials, key properties, e usos ideais:​

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We test all materials to optimize spindle speeds, taxas de alimentação, and tool selection—ensuring consistent precision across every part.

Tratamento de superfície & Opções de acabamento

After mill-turning, Oferecemos uma variedade de tratamento de superfície e finishing options to enhance part durability, funcionalidade, e estética. Our most popular services include:​

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Por exemplo, we use anodizing for aluminum automotive trim (para resistir a arranhões) and electroplating for brass electronics connectors (to improve conductivity).

Tolerâncias & Garantia de qualidade

Tolerâncias for CNC Mill-Turning focus on both turning (diameter/length) e moagem (feature position/size) precision—critical for parts where fitment depends on multiple features. Nosso quality control processes ensure strict adherence to standards:​

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Nosso quality control processes incluir:​

• Pré-fazenda: Inspecting raw materials for defects (Por exemplo, cracks in titanium, unevenness in composites) and verifying dimensions.​

• Em processo: Real-time monitoring of spindle speed, taxa de alimentação, and tool wear via CNC software; touch probe checks (for critical features like hole position).​

Pós-formação: 100% Inspeção para peças críticas (medical/aerospace); statistical sampling (5–10%) Para ordens de alto volume. We also document every step (Parâmetros de usinagem, Resultados de inspeção) for compliance.

Key Advantages of CNC Mill-Turning

Compared to traditional separate turning/milling or single-process machining, CNC Mill que vira offers transformative benefits:​

1. Usinagem de configuração única: Completes all operations (virando, moagem, perfuração, rosqueamento) in one setup—eliminating part repositioning errors (common in traditional machining) and reducing tolerance stack-up.​

2. Alta precisão: Achieves tolerances as tight as ±0.001mm—critical for parts like medical implants (where fit directly impacts patient safety) or aerospace sensors (where precision affects performance).​

3. Consistency and Repeatability: CNC programming ensures every part is identical—even for high-volume orders (Por exemplo, 200,000 brass connectors). No variation from manual repositioning.​

4. Geometrias complexas: Handles parts with both rotational (virado) and prismatic (moído) features—e.g., a shaft with milled slots, a screw with a hex drive, or a valve with cross-holes.​
5. Tempo de configuração reduzido: One setup instead of 2–3 (usinagem tradicional) cuts setup time by 60–80%—speeding up production for prototypes and high-volume runs.

6. Increased Efficiency: High-speed machining (até 20,000 RPM for milling) and automated tool changers reduce per-part cycle time by 30–50% compared to traditional methods. Por exemplo, a brass connector that takes 5 minutes to make with separate turning/milling takes just 2 minutes with CNC mill-turning.​

7. Versatilidade: Handles almost all materials (metais, non-metals, exotics) and part types—from tiny medical screws (0.5mm diâmetro) to large aerospace shafts (150mm diâmetro). It also supports low-volume prototypes and high-volume production (200,000+ unidades/mês).​

8. Custo-efetividade: While mill-turning centers have higher upfront costs, reduced labor (one operator runs 2–3 machines), fewer setups, and lower scrap rates (due to fewer errors) cut long-term costs by 25–40%.​

9. Tolerâncias apertadas: The single-setup approach eliminates tolerance stack-up (errors from repositioning), enabling tighter tolerances (± 0,001 mm) than traditional machining (which often struggles with ±0.005mm for multi-feature parts).​

10. High-Quality Surface Finish: Integrated finishing operations (Por exemplo, polimento, rosqueamento) in one setup reduce tool marks and improve surface roughness (Ra down to 0.02μm)—eliminating the need for secondary finishing in many cases.

Aplicações do setor

CNC Mill que vira is indispensable across industries that require complex, high-precision parts with both rotational and prismatic features. Aqui estão suas aplicações mais comuns:​

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Por exemplo, in the energy industry, our CNC-mill-turned wind turbine gear shafts (aço, ±0.002mm tolerance) reduce friction and extend turbine life by 20% compared to traditionally machined shafts. In medical devices, our titanium orthopedic screws (with milled drive slots and turned threads) ensure a perfect fit for patients—reducing surgical complications.

Advanced Manufacturing Techniques in CNC Mill-Turning

To maximize the performance of CNC mill-turning, we leverage specialized Técnicas de usinagem and optimized processes tailored to complex parts:​

9.1 Core Mill-Turning Techniques​

• Live Tooling Machining:​

The cornerstone of CNC mill-turning—live tooling (rotating tools in the turret) enables milling, perfuração, and tapping while the part is held in the chuck. Por exemplo, after turning a shaft’s outer diameter, we use a live drill to add cross-holes and a live tap to create threads—all without repositioning. Nós usamos:​

• Radial Live Tools: For features perpendicular to the part’s axis (Por exemplo, cross-holes, slots).​

• Axial Live Tools: For features parallel to the part’s axis (Por exemplo, end-face holes, tópicos).​

• C-Axis Indexing/Rotation:​

The C-axis (rotational axis of the spindle) lets us position the part at precise angles (indexing) or rotate it continuously (for circular milling). Por exemplo:​

• Indexing: Rotating the part 90° to mill a slot on its side, then 180° for another slot—ensuring perfect symmetry.​

• Continuous Rotation: Rotating the part while milling to create helical features (Por exemplo, spiral grooves on a turbine shaft).​

• Y-Axis Machining:​

The Y-axis (linear axis perpendicular to both X and Z) enables off-center milling—critical for parts with features not aligned to the spindle axis (Por exemplo, an eccentric slot on a camshaft). It eliminates the need for specialized fixtures to offset the part.​

• Bar Feeding & Unattended Operation:​

Para produção de alto volume (Por exemplo, 200,000 brass connectors), nós usamos automatic bar feeders (3–6 meter capacity) to load raw material into the machine. This enables unattended operation for 8–12 hours, reducing labor costs and increasing efficiency.​

9.2 Supporting Technologies​

• Otimização do caminho da ferramenta:​

CAM software generates integrated Caminhos da ferramenta that minimize tool travel and prioritize operations by material removal:​

1. Rough turning (removes most material quickly).​

2. Rough milling (shapes prismatic features).​

3. Finish turning (refines cylindrical surfaces).​

4. Finish milling (polishes slots/holes).​

5. Operações secundárias (rosqueamento, Deburrendo).​

For hard materials like titanium, nós usamos trochoidal milling (circular tool paths) to reduce cutting force and extend tool life.​

• Cutting Tool Selection:​

We match tools to material and operation:​

• Turning Tools: Carbide inserts (TiAlN-coated for heat resistance) para metais; diamond tools for plastics.​

• Ferramentas de moagem: Solid carbide end mills (para precisão) para metais; Aço de alta velocidade (HSS) Mills finais (econômico) for plastics.​

• Drills/Taps: Cobalt drills for hard metals (titânio, inconel); HSS taps for soft metals (latão, alumínio).​

• Sistemas de líquido de arrefecimento:​

Directed coolant ensures optimal performance:​

• Flood Coolant: For metal machining—high-pressure (50–80 bar) coolant directed to the cutting zone reduces heat and flushes chips.​

• Mist Coolant: For plastics/exotics—atomized coolant prevents melting/warping without residue buildup.​

• Through-Spindle Coolant: For deep-hole drilling—coolant flows through the drill’s center to reach the cutting tip, improving chip evacuation.​

• Projeto de luminária:​

Custom fixtures enhance stability and precision:​

• Collets: Para peças de pequeno diâmetro (≤20mm) to ensure concentricity (± 0,001 mm).​

• Chucks: For large-diameter parts (20–150mm)—3-jaw chucks for round parts, 4-jaw chucks for irregular shapes.​

Tailstocks: For long parts (≥300mm) to prevent deflection during turning/milling.

Estudos de caso: CNC Mill-Turning Success Stories

Nosso CNC Mill-Turning services have solved complex part challenges for clients across aerospace and medical industries. Abaixo estão dois projetos de sucesso showcasing our expertise:​

Estudo de caso 1: Aerospace Turbine Shaft Manufacturer (Titanium Shafts)​

• Desafio: O cliente precisava 500 titanium turbine shafts (80mm diâmetro, 600mm de comprimento) for jet engines—each requiring a turned outer diameter, 4 milled keyways (120° apart), 6 cross-holes (0.8mm diâmetro), and a threaded end. Tolerances were ±0.002mm (critical for engine balance), and the client’s previous supplier used separate turning/milling (3 setups), causando 10% of shafts to fail due to misaligned keyways. Lead time was 5 semanas, delaying engine production.​

• Solução: Usamos um 5 eixo mill-turning center with live tooling and C-axis rotation. We machined each shaft in one setup: first turning the outer diameter and threading the end, then using C-axis indexing to mill the 4 keyways (120° apart) and radial live tools to drill the cross-holes. We used carbide turning inserts (Revestido de Tialn) e refrigerante de alta pressão (80 bar) to handle titanium’s low machinability. Our in-line touch probe checked keyway alignment mid-production, rejecting out-of-tolerance parts immediately.​

• Resultados:​

• Misalignment rate dropped from 10% to 0.5%—only 3 shafts failed per batch (vs.. 50 previously).​

• Lead time shortened from 5 semanas para 2 weeks—helping the client meet their engine launch deadline.​

• Production cost per shaft decreased by 35% (reduced labor from 3 setups to 1).​

• Depoimento do cliente: “The single-setup mill-turning eliminated our biggest pain—misaligned keyways. The shafts balance perfectly, and the fast delivery saved our production line. We’ve made them our exclusive supplier for turbine shafts.” — Raj P., Aerospace Engineering Director.​

• Before and After: Traditionally machined shafts had uneven keyway spacing; mill-turned shafts featured perfectly aligned keyways and cross-holes that met engine balance requirements.​

Estudo de caso 2: Medical Device Company (Titanium Orthopedic Screws)​

• Desafio: O cliente precisava 10,000 titanium orthopedic screws monthly (5mm diâmetro, 30mm de comprimento)—each with a turned cylindrical body, milled hex drive (para ferramentas cirúrgicas), and threaded end. Tolerances were ±0.001mm (to ensure compatibility with bone plates), and the screws required a smooth surface finish (Ra ≤ 0.1μm) Para reduzir a irritação do tecido. The client’s previous supplier used separate turning/milling, levando a 8% of screws having mismatched hex drives and threads.​

• Solução: We used a compact mill-turning center with live tooling and C-axis indexing. We loaded titanium bar stock into an automatic bar feeder (for unattended operation) and programmed the machine to: 1) turn the screw’s body and threads; 2) index the C-axis to 60° increments to mill the hex drive; 3) polish the surface with a fine-grit live tool. We used diamond-coated milling tools for the hex drive (to ensure sharp edges) and mist coolant to prevent titanium oxidation. Pós-formação, we inspected 100% of screws with a CMM and profilometer.​

• Resultados:​

• A taxa de defeito caiu de 8% to 0.2%—only 20 screws failed per month (vs.. 800 previously).​

• Surgeons reported a 40% reduction in screw insertion time (due to precise hex drive/thread alignment).​

• The client’s patient satisfaction score increased by 25% (thanks to the smooth surface finish).​

• Challenge Overcome: Separate turning/milling caused hex drives to be off-center relative to threads; CNC mill-turning’s single setup ensured perfect alignment.​

Depoimento do cliente: “These screws fit better than any we’ve used—no more struggling with misaligned hex drives. The smooth finish also means less post-surgery irritation for patients. We’ve doubled our order.” — Dr. Lisa M., Orthopedic Surgeon.

Why Choose Our CNC Mill-Turning Services?

With numerous CNC mill-turning providers, here’s what sets us apart as a trusted partner for complex part production:​

• Expertise in CNC Mill-Turning: Nossa equipe tem 22+ years of specialized experience—we master advanced techniques like live tooling, C-axis rotation, and Y-axis machining. Our engineers are certified in AS9100 (Aeroespacial) e ISO 13485 (médico) and can solve complex challenges (Por exemplo, ±0.001mm tolerances in titanium, multi-feature small parts) that other providers struggle with.​

• Experience in Various Industries: Nós servimos 750+ clientes de outro lado 10 industries—from aerospace giants to medical startups. This cross-industry experience means we understand sector-specific requirements: FAA compliance for turbine shafts, FDA regulations for orthopedic screws, and ISO/TS 16949 for automotive parts.​

• High-Quality Equipment: Investimos em última geração mill-turning centers—15 systems (5-axis and 3-axis) with live tooling, automatic bar feeders, and in-line inspection (laser micrometers, touch probes). All machines are calibrated weekly (using laser interferometers) to maintain ±0.001mm precision.​

• Excelente atendimento ao cliente: Nossa equipe está disponível 24/7 to support your project—from design consultation (optimizing parts for mill-turning) para acompanhar pós-entrega. We offer free CAD reviews (identifying features that can be consolidated into one setup) and free samples (so you can verify quality before placing large orders). Para projetos urgentes (Por exemplo, medical supply shortages), we assign a dedicated project manager.​

• Tempos rápidos de resposta: Our optimized processes deliver industry-leading lead times:​

• Protótipos (1–50 unidades): 1–3 dias

• Low-volume orders (50–1.000 unidades): 3–7 dias

• High-volume orders (1,000+ unidades): 7–14 dias

Por ordens apressadas (Por exemplo, aerospace emergency replacements), we can deliver parts in 48 horas (Para pequenos lotes) by running machines 24/7.​

• Soluções econômicas: We help you save money through:​

• Single-setup machining: Eliminates 2–3 setups, reducing labor costs by 40–50%.​

• Unattended operation: Automatic bar feeders let us run machines overnight, lowering per-part labor costs.​

• Volume discounts: 10% off orders over 10,000 units and 15% off orders over 50,000 units—ideal for automotive/electronics high-volume parts.​

Commitment to Quality: Nós somos ISO 9001, AS9100, e ISO 13485 certified—our quality control processes garantir 99.9% of parts meet your specifications. We also offer full traceability (each part is labeled with a unique ID linked to machining logs and inspection data) for compliance.

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