Custom Online Copper CNC Machining Service

Our custom online brass CNC machining service offers precision manufacturing of brass components to your specifications. Ideal for various applications, including electronics, automotive, and plumbing, we ensure high-quality, cost-effective parts with fast turnaround times and competitive pricing.

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Know About Brass CNC Machining

Brass CNC machining involves precision manufacturing of brass components with high machinability, offering excellent surface finishes and tight tolerances. It’s commonly used for electronics, automotive, and plumbing parts, combining durability with ease of processing for efficient, cost-effective production.

Category	Description
Machining Properties	Brass is a versatile and easy-to-machine material, offering good thermal conductivity, excellent corrosion resistance, and high machinability. It allows for smooth cutting, reduces tool wear, and ensures precision in intricate designs. Its low friction properties make it ideal for parts requiring tight tolerances and a smooth surface finish, such as fittings and connectors.
Machining Parameters	Key machining parameters for brass include spindle speeds of 2000-3000 RPM and feed rates of 0.1–0.3 mm/rev. These settings optimize material removal while reducing heat buildup. Cutting depths range from 0.1 to 0.5 mm, ensuring effective chip evacuation and surface integrity. Proper coolant use helps prevent material oxidation during the process.
Precautions	Controlling heat is essential when machining brass to prevent discoloration or work hardening. Using appropriate coolant and maintaining optimal cutting speeds can reduce tool wear. Additionally, brass tends to create small, sharp chips; chip-breaking tools and vacuum systems are recommended to improve safety and maintain part accuracy.

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Typical Brass Alloy In CNC Machining

Typical brass alloys used in CNC machining include C360, C260, C270, and C377, offering excellent machinability, corrosion resistance, and electrical conductivity. These alloys are ideal for producing components like connectors, valves, fittings, and fasteners, with a broad range of industrial applications.

Brass Alloys	Tensile Strength (MPa)	Yield Strength (MPa)	Fatigue Strength (MPa)	Elongation (%)	Hardness (HRC)	Density (g/cm³)	Applications
Brass C360	550 - 700	240 - 310	160 - 210	40 - 45	50 - 60	8.4	Plumbing fittings, electrical connectors, fasteners
Brass C377	350 - 550	130 - 220	100 - 150	20 - 30	45 - 55	8.5	Valve bodies, fittings, pumps
Brass C385	550 - 750	240 - 320	180 - 240	30 - 40	55 - 60	8.5	Electrical connectors, gears, automotive components
Brass C220	200 - 300	70 - 120	40 - 80	25 - 40	50 - 60	8.3	Jewelry, decorative components, musical instruments
Brass C270	250 - 400	100 - 160	80 - 120	20 - 30	45 - 50	8.5	Electrical contacts, hardware, plumbing
Brass C260	275 - 380	100 - 180	70 - 100	25 - 35	40 - 50	8.5	Coins, musical instruments, industrial parts
Brass C628	700 - 900	400 - 500	300 - 400	15 - 25	50 - 60	8.7	Marine hardware, automotive components
Brass C624	700 - 800	400 - 500	350 - 400	20 - 25	50 - 55	8.7	Aerospace, automotive, marine applications
Brass C174	600 - 800	250 - 300	150 - 200	30 - 40	45 - 55	8.4	Electrical components, precision instrumentation
Brass C210	200 - 300	80 - 120	50 - 100	25 - 35	45 - 50	8.3	Plumbing, fittings, electrical connectors
Brass C715	350 - 450	150 - 250	100 - 200	20 - 30	50 - 60	8.4	Marine, electrical, and plumbing components
Brass C319	400 - 500	180 - 250	120 - 200	25 - 35	45 - 55	8.5	Automotive, electrical, industrial components
Brass C486	550 - 650	250 - 350	150 - 200	30 - 40	50 - 60	8.5	Pumps, valves, fittings
Brass C521	600 - 700	250 - 350	180 - 250	30 - 40	50 - 60	8.6	Electrical connectors, valve components
Brass C655	600 - 700	300 - 400	250 - 300	20 - 30	50 - 60	8.4	Marine and electrical applications
Brass C36000	550 - 700	240 - 310	160 - 210	40 - 45	50 - 60	8.4	Plumbing fittings, electrical connectors, fasteners
Brass C726	650 - 750	350 - 450	200 - 300	25 - 35	50 - 60	8.5	Electrical connectors, automotive components
Brass C72650	650 - 800	350 - 450	250 - 300	30 - 40	50 - 60	8.6	Automotive, electrical, marine applications
Brass C28000	300 - 500	150 - 250	120 - 180	20 - 30	45 - 50	8.3	Electrical, plumbing, decorative components
Brass C23000	400 - 550	200 - 300	150 - 220	20 - 30	50 - 55	8.4	Electrical, marine, industrial components

Surface Treatment For CNC Machined Brass Components

Surface treatments for CNC machined brass components, such as electroplating, anodizing, and passivation, enhance corrosion resistance, improve aesthetics, and increase durability. These processes are essential for electronics, plumbing, automotive, and decorative applications, ensuring optimal performance and longevity.

Custom Brass CNC Machining Case Study

This custom brass CNC machining case study showcases the precision and versatility of brass components for specialized applications. The project highlights optimized machining processes, cost-effective solutions, and successful outcomes for industries like electronics, automotive, and plumbing, delivering high-quality parts.

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Brass CNC Machining Parameter Suggestion

Brass CNC machining parameters optimize efficiency, tool life, and part quality. Key considerations include spindle power, feed rate, cutting depth, tool material, and coolant type. Adjusting these parameters ensures smooth machining, precise finishes, and consistent results for brass alloy parts.

Parameters	Recommended Range/Value	Explanation
Spindle Power	5-10 kW	Brass is a relatively soft material, requiring moderate spindle power for efficient cutting while preventing tool wear.
Spindle Speed	1500-3000 RPM	Brass alloys respond well to high spindle speeds, offering better surface finishes and reducing cutting forces.
Cutting Feed Rate	0.05-0.2 mm/tooth	A balanced feed rate ensures smooth machining without excessive tool wear, providing both efficiency and precision.
Depth of Cut (DOC)	0.5-2 mm	Shallow cuts are recommended for better surface finish and tool life, while deeper cuts require more power and stability.
Cutting Tool Material	Carbide or Cobalt Carbide	Carbide tools maintain their sharpness longer, reducing tool wear and improving cutting accuracy.
Pitch	0.2-0.5 mm	A moderate pitch ensures optimal chip removal while preventing material buildup on the tool and minimizing heat.
Tool Path Strategy	Zig-Zag or Contour Milling	These tool paths allow for efficient material removal, especially for complex shapes, while minimizing tool deflection.
Coolant Type	Flood coolant or mist	Coolant reduces heat buildup, prolonging tool life and improving the surface finish of brass parts.
Tool Diameter	3-10 mm	Tool diameter impacts machining efficiency, with smaller tools providing finer details and larger tools improving material removal rates.
Chip Load	0.01-0.2 mm/tooth	Chip load ensures optimal cutting conditions, balancing feed rates and tool life, while preventing excessive heat generation.
Tool Wear Monitoring	Use of tool wear sensors (if available)	Monitoring tool wear prevents premature failure and ensures consistent part quality throughout the machining process.
Machine Rigidity	High rigidity required	Brass, while soft, can lead to chatter if the machine setup is not rigid, affecting surface finish and dimensional accuracy.
Machining Environment	Stable temperature and humidity control	Brass machining is sensitive to temperature fluctuations, which can impact tool performance and part consistency.

Tolerance Suggestions for Brass CNC Machining

Tolerance suggestions for brass CNC machining ensure precision, efficiency, and part integrity. Recommended tolerances range from ±0.1 mm for general applications to tighter limits for high-precision components. Considerations include wall thickness, drill size, part dimensions, and production volume for optimal results.

Tolerance Type	Recommended Range/Value	Explanation
General Tolerances	±0.1 mm	Suitable for most standard CNC machining applications, ensuring functionality while maintaining reasonable cost.
Precision Tolerances	±0.02 to ±0.05 mm	For high-precision components that require tighter fits, e.g., threaded holes or high-performance parts.
Min Wall Thickness	0.8 mm	Brass is relatively easy to machine, but thinner walls may lead to reduced strength or warping.
Min Drill Size	0.3 mm	Small drill sizes are achievable with high-quality tooling, but smaller sizes can affect drill life and precision.
Maximum Part Size	500 mm x 500 mm	Standard CNC machines can accommodate larger brass parts within this size. Larger parts may require custom machining equipment.
Minimum Part Size	2 mm x 2 mm	Parts smaller than this can become difficult to handle and machine, impacting precision and efficiency.
Production Volume (Prototyping)	Low volume (1-100 units)	Prototyping often involves more intricate setups, and low volumes are cost-effective for testing designs.
Production Volume (Low Volume)	100-1000 units	Lower tooling and setup costs than high volume, suitable for batch production with manageable costs.
Production Volume (High Volume)	1000+ units	Higher volumes justify investment in dedicated tooling, which leads to lower per-unit costs for large production runs.
Lead Time (Prototyping)	1-3 weeks	Prototypes often require custom machining, which impacts lead time based on part complexity.
Lead Time (Low Volume)	2-4 weeks	Lead time increases due to custom setups, tool changes, and tighter tolerances for batch sizes.
Lead Time (High Volume)	4-8 weeks (depending on complexity)	Large volumes may require additional production capacity, tooling, and quality control processes.