We make important materials using Messing. Brass is a metal made from copper and zinc — It’s an alloy that works well for tons of things, like electrical parts and cars. Our mill equipment cuts brass into really important parts you need.
Yijin Hardware uses a CNC machine to carve brass metal. We cut it, drill it, and smooth it over according to your needs. Our machining space creates machined brass parts that fit just the right way. Customers use our brass parts in many ways, and we ship these parts all over from our factory.
Wichtigste Erkenntnisse
- Brass is one of the easiest materials to machine, the tools last longer
- We make parts from different brass alloys (C360, C260) for different needs
- Our CNC machining creates brass with exact sizes (±0.005 in)
- Brass parts work great in pipes, wires, cars, and other items
- Yijin Hardware has ISO 9001:2015 for quality machining services
Was ist CNC-Bearbeitung von Messing?
Messing CNC-Bearbeitung cuts brass into useful parts. A computer tells the machine where to cut. The machine follows these instructions exactly. The CNC machine follows digital Entwürfe to take away metal from brass workpieces. This makes complicated parts with tons of accuracy. The process works well because of brass metal composition. That makes it super easy to machine.
Brass machining uses CAD/CAM software. This is to create toolpaths for the cutting tools. The machine then takes the time to follow these paths to make holes, threads, and other features. Brass is used in this process because it’s got a high machinability rating.
Free machining brass allows higher cutting speeds and causes less tool wear than other metals. This makes brass CNC machining service more efficient and cost-effective for precision brass components.
CNC Process Parameters for Brass
| Parameter | Typical Values for Brass | Comparison to Steel |
|---|---|---|
| Schnittgeschwindigkeit | 100-200 m/min | 2-3× faster |
| Vorschubgeschwindigkeit | 0.1-0.5 mm/rev | 1.5-2× higher |
| Schnitttiefe | 0.5-5 mm | Ähnlich |
| Lebensdauer der Werkzeuge | Extended | 2-3× longer |
What are the Different Brass Grades Used in CNC Machining?
Different brass alloys provide specific properties for various machining projects. C360 brass contains approximately 61.5% copper, 35.5% zinc, and 3% lead, offering exceptional machinability. This free-cutting brass creates perfect chips during the material removal rate process, making it ideal for screw machine products and high-volume production.
C260, also known as cartridge brass, provides tensile strength of 345 MPa and excellent ductility. With 70% copper and 30% zinc, it balances strength and formability for components that need both properties. Brass C360 contains lead, which improves machinability, while brass material without lead meets regulations for drinking water applications.
The properties of brass vary between different brass grades. Naval brass contains additional tin for superior corrosion resistance in marine environments, while free-cutting brass offers high precision in complex machined parts. The amount of lead in the alloy significantly impacts the manufacturing parts process.
Mechanical Properties of Common Brass Alloys
| Eigentum | C360 | C260 | C220 | C464 |
|---|---|---|---|---|
| Zugfestigkeit | 320 MPa | 345 MPa | 310 MPa | 380 MPa |
| Streckgrenze | 170 MPa | 140 MPa | 125 MPa | 165 MPa |
| Härte (Brinell) | 90 HB | 110 HB | 60 HB | 115 HB |
| Bearbeitbarkeit | Ausgezeichnet | Gut | Messe | Gut |
Why is Brass Ideal for CNC Machining?
Brass offers excellent machinability that enables 5-20% faster machining speeds compared to other metals. The material’s structure creates chips that break cleanly, reducing built-up edges on cutting tools and extending tool life substantially. This makes brass one of the easiest materials to machine in high precision applications.
The thermal conductivity of brass (115 W/m-K) dissipates heat quickly during machining processes, requiring minimal cooling fluids. Low friction characteristics of brass reduce power requirements and create smoother finishes, often achieving surface roughness values as low as 0.8 µm without additional finishing operations.
Brass provides natural corrosion resistance, particularly to atmospheric conditions, with its copper and zinc composition offering antimicrobial properties for specific applications. The combination of easy machining, design for manufacturing flexibility, and durability makes brass ideal for custom brass parts across numerous industries.
Key Brass Properties for Machining
- Die Dichte: 8.5 g/cm³ (heavier than aluminum, lighter than steel)
- Modulus of Elasticity: 97 GPa (stiffer than aluminum, more flexible than steel)
- Wärmeleitfähigkeit: 115 W/m-K (excellent heat dissipation)
- Electrical Resistivity: 6.3×10⁻⁸ Ω·m (good conductivity for electrical components)
- Schmelzpunkt: 885-890 °C (maintains structural integrity at moderate temperatures)
What Industries Use Brass CNC Machined Parts?
The plumbing industry uses brass fittings, valves, and fixtures because brass is machinable and resists corrosion. These components maintain integrity in water systems while preventing bacterial growth, with specialized alloys used for potable water applications that meet health standards.
Electrical manufacturers depend on brass components because of the material’s conductivity combined with mechanical strength. Brass provides better durability than pure copper while maintaining sufficient electrical performance for terminals, connectors, and switchgear components designed to industry standards.
Die Automobil sector incorporates brass CNC machined parts in radiators, sensors, fuel systems, and electrical connectors where reliability under vibration and temperature variations is essential. Additional applications include aerospace fittings, HVAC systems, musical instruments, and ornamental applications in architectural hardware.
Application-Specific Brass Components
- Plumbing: Ball valves, compression fittings, faucet bodies
- Electrical: Terminal blocks, battery terminals, switch components
- Automobilindustrie: Radiator fittings, sensor housings, electrical connectors
- Luft- und Raumfahrt: Hydraulic fittings, threaded inserts, bulkhead connectors
- Industrielle Ausrüstung: Gears, bushings, pressure fittings
How does the Brass CNC Machining Process Work?
The machining processes begin with design translation, converting 3D models into machine-readable code through CAM software. This programming optimizes toolpaths specifically for brass, setting appropriate cutting speeds and feeds to leverage the material’s exceptional machinability while maintaining extreme precision. For companies looking for reliable CNC milling China und CNC turning services, Yijin Hardware delivers high-quality brass components with exceptional accuracy.
Material preparation follows, with brass stock secured in the CNC machine using appropriate workholding devices that minimize distortion. The setup includes tool selection (typically carbide for brass machining), calibration, and parameter adjustment based on the specific alloy of copper and zinc being machined.
The CNC brass machining operations proceed with turning operations for cylindrical components, milling for complex geometries, and drilling/tapping for threaded features. Throughout the process, inspections verify dimensional accuracy and surface finish quality using precision measuring instruments to ensure precision and accuracy in the final product.
Typical Machining Operations for Brass
- Facing: Creating flat surfaces perpendicular to the rotational axis
- Turning: Producing cylindrical features with precise diameters.
- Milling: Generating complex geometries, pockets, and profiles
- Bohren: Creating precise holes to specified depths
- Tapping: Forming internal threads for fastening applications
- Reaming: Finishing holes to precise diameters with smooth finishes
What Surface Finishes Can Be Applied to Brass CNC Parts?
Polishing creates a mirror-like surface on brass machined parts through progressive abrasion with increasingly fine media. This process achieves surface roughness values as low as Ra 0.1 µm while enhancing both aesthetics and functionality by reducing friction and improving corrosion. Buffing compounds with tripoli or rouge are commonly used for final polishing stages.
Electroplating deposits a thin layer of metal like chrome, nickel, or gold onto the brass surface using an electrolytic process. This treatment enhances corrosion resistance, wear properties, and appearance while maintaining dimensional accuracy, with layer thicknesses typically ranging from 5-25 µm depending on application requirements.
Powder coating applies a protective polymer layer through electrostatic application followed by heat curing. This finish provides excellent durability, protection, and color options for finishes for CNC machined brass, though the thermal curing process must be carefully controlled to prevent dimensional changes in precision components.
Surface Treatment Comparison
| Ausführung Typ | Corrosion Protection | Erscheinungsbild | Dauerhaftigkeit | Dimensional Impact |
|---|---|---|---|---|
| Wie bearbeitet | Minimal | Natural Brass | Mäßig | Keine |
| Poliert | Low-Moderate | High Shine | Mäßig | Minimal |
| Electroplated | Hoch | Metallic | Hoch | Minimal |
| Powder Coated | Sehr hoch | Custom Colors | Sehr hoch | Mäßig |
What are the Cost Considerations for Brass CNC Machining?
Material costs form a significant portion of machining expenses, with prices varying by grade and market conditions. Geprüfte Marktberichte note that the global brass market was at around $6.2 billion in 2024 and is likely going to hit $8.9 billion by 2033.
C360 brass typically costs less than specialized grades, while the copper content directly affects pricing due to commodity market fluctuations. The choice between different brass alloys must balance performance requirements with budget constraints.
Design complexity directly impacts machining time and tool wear, with features like tight tolerances, intricate geometries, and thin walls increasing production costs. Designs optimized for manufacturability through standardized features, appropriate angles, and minimal setups can reduce expenses without compromising functionality in brass components.
Production volume offers economies of scale through distributed setup costs, optimized material usage, and process refinement over longer runs. Quantities above 500 units typically see significant per-unit cost reductions, while surface finishes for CNC machined parts add to overall expenses depending on the processes required and their complexity.
How to Choose the Right Brass Grade for Your Application?
Environmental factors determine the appropriate brass grade, with marine environments requiring alloys with enhanced corrosion resistance like naval brass containing tin. Standard grades offer adequate corrosion resistance for indoor applications, while specialized alloys provide exceptional resistance to saltwater environments for marine applications.
Mechanical requirements establish necessary strength, hardness, and wear resistance properties based on operational conditions. Applications requiring high tensile strength benefit from stronger grades, while those needing superior wear resistance may require specialized alloys. Components subject to vibration should utilize grades with appropriate damping characteristics.
Regulatory compliance considerations include lead content restrictions for drinking water applications (requiring health standard compliance), environmental regulations for electronic components, and specific industry standards. The lead content in brass is regulated in many applications, requiring careful selection of the appropriate grade for your specific use case.
Yijin Hardware | Top Brass Machining
Brass CNC machining delivers exceptional precision, efficiency, and versatility for creating high-quality custom brass parts across diverse industries. The material’s superior machinability, corrosion resistance, and conductivity make brass an ideal choice for applications ranging from plumbing fixtures to electrical components and ornamental pieces. Understanding the different brass grades, machining processes, and finishing options helps optimize your component design for both performance and cost-effectiveness.
At Yijin Hardware, our ISO-certified machining services and metallurgical expertise ensure your brass components meet the highest quality standards. We provide comprehensive support from material selection through design optimization and quality control. Contact our engineering team today to discuss your brass CNC machining requirements and discover how our services can enhance your next project.
Brass CNC Machining FAQs
How does brass compare to other metals for CNC machining?
Brass requires approximately 20-30% less cutting force than stainless steel while allowing 30-50% higher cutting speeds due to its superior machinability rating. Unlike aluminum, brass provides better thread strength and greater resistance to galling, making it ideal for threaded components and friction-fit assemblies. The natural lubricity of brass results in smoother operation for moving parts and extends component lifespan in applications with metal-to-metal contact.
What quality control measures ensure precision in brass CNC machining?
Coordinate Measuring Machines (CMMs) verify dimensional accuracy to ±0.001 mm while optical comparators and vision systems inspect critical features against programmed parameters. Material composition analysis through X-ray fluorescence or spectrographic testing confirms the exact brass alloy composition, ensuring compliance with specified grades and standards. Statistical Process Control (SPC) methodologies track key quality indicators throughout production, identifying trends and preventing potential issues before they affect final component quality.
What design considerations are specific to brass CNC machining?
Wall thickness should maintain minimum values of 0.5 mm for structural integrity, with uniform thickness preferred to prevent distortion during machining. Thread designs should account for brass’s properties, with thread depths typically 75-80% of theoretical maximum and coarse threads generally preferred over fine threads for optimal strength and durability. Internal corners should include radii of at least 0.5 mm to reduce stress concentrations and improve tool life, while avoiding features that require unnecessarily small cutting tools.
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