Custom Online Copper CNC Machining Service

Our Custom Online Copper CNC Machining Service offers precision machining for copper parts, ensuring high accuracy and quality. We handle complex designs with advanced CNC technology, providing fast turnaround times and custom solutions tailored to your project needs.

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Know About Copper CNC Machining

Copper CNC machining involves precision cutting and shaping of copper materials using advanced CNC technology. It offers excellent conductivity and machinability, ideal for electrical and thermal applications. Proper machining parameters and tool selection are essential for achieving high-quality, precise copper parts.

Category	Description
Machining Properties	Copper is highly conductive and ductile, ideal for electrical and thermal applications. It’s soft and relatively easy to machine, but its high thermal conductivity can lead to tool wear. Copper alloys, such as bronze and brass, are often used for enhanced strength, corrosion resistance, and machinability. Surface finish can vary depending on the alloy used.
Machining Parameters	Optimal cutting speeds are essential when machining copper to minimize tool wear and achieve smooth finishes. For CNC milling, a speed of 100-200 SFM (surface feet per minute) is typical. Feed rates should be moderate to prevent tool deflection. Sharp tools, typically carbide or coated high-speed steel, handle copper's softness and prevent material buildup on the tool.
Precautions	Copper’s high thermal conductivity can cause rapid heat buildup, leading to tool wear. To combat this, use adequate coolant or lubrication to maintain tool life and surface finish. Prevent material work-hardening by avoiding excessive cutting forces and using proper feeds. Additionally, copper can be prone to tearing, so sharp tools and stable machining setups are crucial for quality results.

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Typical CNC Machining Copper Alloys

Typical CNC machining copper alloys include Copper C101, C110, Beryllium Copper, and Brass. These alloys are chosen for their excellent electrical conductivity, corrosion resistance, and machinability. Common applications include electrical connectors, heat exchangers, industrial machinery, and aerospace components.

Copper Alloys	Tensile Strength (MPa)	Yield Strength (MPa)	Fatigue Strength (MPa)	Elongation (%)	Hardness (HRC)	Density (g/cm³)	Applications
Copper C101 (T2)	210–250	35–70	40–55	30–50	40–45	8.92	Electrical connectors, heat exchangers, electronic components
Copper C103 (T1)	230–280	45–90	50–65	30–45	45–50	8.96	Electrical conductors, power generation, bus bars
Copper C103 (TU2)	220–270	50–90	45–60	25–40	45–50	8.96	Conductors, heat exchangers, brazing
Copper C110 (TU0)	210–270	40–70	50–60	30–45	45–50	8.96	Electrical wiring, power generation, telecommunication
Beryllium Copper	690–1000	450–650	350–500	2–10	30–35	8.3	Aerospace, electrical contacts, tooling
Copper C102 (Oxygen-Free Copper)	250–300	60–90	50–65	25–45	45–50	8.96	High-end electronics, semiconductor manufacturing, welding
Copper C260 (Brass)	300–550	150–300	150–250	25–40	55–70	8.47	Plumbing fittings, electrical components, decorative hardware
Copper C194 (Alloy 194)	700–900	350–500	200–300	5–10	25–30	8.92	Electrical connectors, springs, high-performance components
Copper C175 (Chromium Copper)	550–700	250–400	300–400	5–10	35–40	8.9	Electrical contacts, tooling, aerospace components
Copper C330 (Leaded Copper)	250–350	70–150	100–150	25–40	40–55	8.55	Plumbing fittings, gears, electrical parts
Copper C151 (Tellurium Copper)	340–460	130–230	150–200	20–30	35–45	8.9	Electrical contacts, precision components, aerospace
Copper C172 (Beryllium Copper – High Strength)	1000–1200	700–900	500–700	3–6	35–45	8.3	Aerospace, electrical connectors, high-strength springs
Copper C194 (High Strength Copper)	800–1000	350–550	250–350	5–10	25–30	8.92	Electrical connectors, power distribution, military applications
Copper C510 (Phosphor Bronze)	600–800	250–400	200–300	10–25	35–50	8.8	Electrical contacts, springs, bearings
Copper C521 (Leaded Phosphor Bronze)	600–750	250–400	200–300	5–10	40–55	8.8	Electrical connectors, bearings, industrial components
Copper C120 (Electrolytic Tough Pitch Copper)	210–270	60–90	50–60	30–45	40–45	8.96	Power generation, electrical wiring, telecommunications
Copper C630 (Aluminum Bronze)	800–1000	400–600	300–450	10–15	40–50	8.9	Marine hardware, aerospace, industrial machinery
Copper C905 (Silicon Bronze)	600–800	250–400	200–300	10–25	40–50	8.8	Marine applications, turbine blades, industrial components
Copper C706 (Nickel Silver)	400–600	150–300	150–200	20–35	35–45	8.7	Musical instruments, jewelry, decorative hardware
Copper C482 (Copper Nickel)	550–750	250–400	200–300	15–25	35–45	8.9	Marine applications, heat exchangers, desalination plants

Surface Treatment For CNC Machined Copper Parts

Surface treatment for CNC machined copper parts includes processes like electroplating, anodizing, passivation, and polishing. These treatments enhance corrosion resistance, improve durability, and provide a smooth finish. They are commonly used in electronics, aerospace, and automotive applications to ensure optimal performance.

CNC Machined Copper Parts Gallery

Explore our CNC machined copper parts gallery, showcasing high-precision components made from top-grade copper alloys. From electrical connectors to aerospace parts, our gallery highlights the versatility and quality of our custom copper machining solutions for diverse industries.

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Copper Alloy CNC Machining Parameter Suggestion

Copper alloy CNC machining requires optimized parameters for efficiency and quality. Key factors include spindle speed, cutting depth, feed rate, coolant type, and tool material. Proper adjustments ensure smooth machining, minimize tool wear, and achieve precise, high-quality copper components.

Parameters	Recommended Range/Value	Explanation
Spindle Power	3-7 kW	High spindle power ensures smooth cutting, minimizes tool wear, and maintains consistency when machining copper alloys, which are prone to galling and heat buildup.
Spindle Speed	800-2500 RPM	Copper alloys require high spindle speeds to efficiently remove material while preventing overheating and oxidation, ensuring a clean, smooth finish.
Cutting Speed	150-300 m/min	Copper alloys have good thermal conductivity, requiring high cutting speeds to minimize heat accumulation and prevent material deformation.
Feed Rate	0.05-0.2 mm/tooth	Higher feed rates help achieve faster material removal while maintaining surface finish quality and reducing tool wear.
Deep Cut	1-5 mm	Shallow cuts are recommended for copper alloys to avoid heat buildup and tool damage. However, deeper cuts may be used when appropriate for specific features.
Cutting Depth	0.1-0.5 mm	Shallow cuts are ideal for better control, precision, and to avoid the risk of workpiece deformation or tool wear.
Pitch	0.2-1.0 mm	Using a consistent pitch helps maintain an even cutting process, ensuring uniform material removal while preventing tool clogging.
Coolant Type	Flood coolant or air	Copper alloys are sensitive to overheating, so using flood coolant or compressed air helps to dissipate heat, reduce tool wear, and improve surface finish.
Tool Material	Carbide, High-Speed Steel	Carbide tools are ideal for copper alloys due to their high wear resistance and ability to maintain sharp edges during high-speed machining.
Tool Geometry	Sharp tools with a low rake angle	A low rake angle helps to prevent material adhesion (galling) and ensures better control during the cutting process, as copper is a sticky material.
Tool Wear Monitoring	Essential	Copper alloys can cause rapid tool wear due to their high thermal conductivity, so monitoring tool wear is important to maintain part quality and consistency.
Cutting Fluid Pressure	40-60 bar	High-pressure coolant ensures effective chip removal, cooling, and lubrication, reducing the risk of clogging or material buildup, improving surface finish.
Chip Removal Rate	0.5-2 mm³/min	A high chip removal rate helps clear material quickly and reduces the chance of tool damage or part deformation.
Surface Finish	Ra 0.8-1.6 µm	Achieving a fine surface finish is essential in copper machining, especially for electrical or high-precision components, to reduce friction and enhance performance.
Tool Path Strategy	Adaptive, Contour	Adaptive tool paths allow efficient material removal, while contour paths help achieve smooth, accurate contours, crucial for copper alloy parts requiring tight tolerances.

Tolerance Suggestions for Copper CNC Machining

Tolerance suggestions for copper CNC machining ensure precision and functionality in parts. General tolerances like ±0.1 mm are standard, while tighter precision tolerances, wall thickness, and part size considerations ensure quality. These guidelines optimize machining, reducing tool wear and enhancing product consistency.

Tolerance Type	Recommended Range/Value	Explanation
General Tolerances	±0.1 mm	Standard machining tolerance for copper allows for typical part fits without requiring advanced precision.
Precision Tolerances	±0.05 mm	Precision tolerances ensure high-quality parts, necessary for critical applications such as electrical components.
Min Wall Thickness	0.5-1.0 mm	Thin walls risk deformation and may cause difficulty in machining, so a minimum thickness ensures stability.
Min Drill Size	0.5 mm	Copper alloys are soft and can deform, so small drill sizes (down to 0.5mm) are achievable without excessive tool wear.
Maximum Part Size	500 mm x 500 mm	Larger parts may experience tool flexing or machining inaccuracies, limiting size for precision.
Minimum Part Size	5 mm x 5 mm	Parts below this size may be difficult to handle during machining due to rigidity and tool engagement limitations.
Production Volume (Low)	50-500 units	Low-volume runs require less specialized tooling and shorter lead times, ideal for initial tests and prototypes.
Production Volume (High)	500-10,000+ units	High-volume production allows for optimized machining time, reduced costs, and efficient tool usage.
Prototyping Lead Time	2-5 days	Prototyping of copper parts can be completed quickly with standard machining processes to verify design.
Low Volume Lead Time	5-10 days	Low-volume copper machining requires some setup time but remains relatively quick for custom orders.
High Volume Lead Time	10-30 days	High-volume production requires optimized planning and may need additional tooling and setup time for consistency.
Surface Finish (Ra)	Ra 0.8-1.6 µm	Achieving fine surface finishes is critical for copper components used in electrical, automotive, and aerospace industries.