Custom Online Bronze CNC Machining Service

Our custom online bronze CNC machining service offers precision machining for various bronze alloys, including phosphor bronze and aluminum bronze. With fast turnaround times and expert craftsmanship, we create high-quality, custom parts tailored to your specifications and industry needs.

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Know About Bronze CNC Machining

Learn about bronze CNC machining, including its properties, machining parameters, and best practices. Bronze alloys, known for wear and corrosion resistance, require specific spindle speeds, feed rates, and coolants for optimal results, ensuring precision in parts like bearings and bushings.

Category	Description
Machining Properties	Bronze alloys are known for their excellent wear resistance, corrosion resistance, and machinability. They are softer than steel, making them easier to machine, but their relatively high tendency to work hard can pose challenges. Suitable cutting tools and coolants are needed to prevent overheating and achieve smooth finishes. Bronze alloys are ideal for components requiring strength and durability.
Machining Parameters	When machining bronze, optimal spindle speeds range from 800 to 2500 RPM, with cutting speeds of 150-300 m/min. The feed rate is generally kept at 0.05-0.2 mm/tooth. For precision, shallow cutting depths (0.1-0.5 mm) and a 0.2-1.0 mm pitch are recommended. Tool materials like carbide and high-speed steel (HSS) work best for efficient material removal.
Precautions	Bronze machining requires attention to tool wear due to its abrasive nature. Ensure consistent coolant application to prevent overheating and material distortion. Avoid excessive cutting depths that may cause excessive tool wear. Pay attention to chip removal, as bronze produces long, stringy chips that can clog machinery. Proper tool geometry and sharp tools help maintain part quality.

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Typical Bronze Alloy In CNC Machining

Typical titanium alloys used in CNC machining include Ti-3Al-2.5V, Ti-6Al-2Sn-4Zr-6Mo, Ti-15V-3Cr-3Sn-3Al, and Ti-7Al. These alloys offer excellent strength, corrosion resistance, and heat tolerance, making them ideal for aerospace, medical, and industrial applications requiring precision machining.

Bronze Alloys	Tensile Strength (MPa)	Yield Strength (MPa)	Fatigue Strength (MPa)	Elongation (%)	Hardness (HRC)	Density (g/cm³)	Applications
C51000 Phosphor Bronze	500-800	300-450	250-300	15-20	30-35	8.8	Electrical connectors, springs, musical instruments
C52100 Phosphor Bronze	550-800	400-600	300-350	10-15	35-40	8.8	Bearings, bushings, high-performance springs
C60800 Phosphor Bronze	480-650	300-450	250-300	12-18	30-35	8.8	Marine hardware, bearings, bushings
C63200 Leaded Phosphor Bronze	500-700	350-500	250-300	12-18	30-35	8.9	Pump components, gears, valve stems, electrical connectors
C63000 Aluminum Bronze	620-830	380-690	280-340	15-25	30-45	7.6	Heavy-duty applications, pump parts, gears, marine hardware
C95400 Aluminum Bronze	690-880	450-650	300-350	10-20	35-45	7.6	Marine components, pumps, heavy-duty machinery
C86300 Manganese Bronze	600-800	400-600	250-300	15-20	30-35	8.3	Bearings, bushings, gears
C83600 Leaded Red Brass	210-300	140-220	100-160	10-15	35-40	8.4	Plumbing fittings, faucets, bushings
C90500 Manganese Bronze	600-900	400-700	300-350	15-20	30-40	8.5	Marine hardware, automotive parts, pump shafts
C90700 Aluminum Bronze	620-850	400-650	280-340	12-20	30-45	7.7	Aircraft components, marine components, valves
C67600 Tin Bronze	450-650	300-450	200-250	10-15	30-35	8.8	Bearings, bushings, valve components
C17000 Silicon Bronze	450-620	280-500	200-300	15-25	35-40	8.9	Marine hardware, electrical components, architectural applications
C46400 Naval Brass	450-600	250-400	150-200	20-30	40-45	8.7	Marine components, propeller shafts, fittings, bushings
C67200 Copper-Nickel-Tin Bronze	500-700	300-500	250-300	15-20	35-40	8.8	Automotive components, valves, and pump parts
C86400 Leaded Bronze	300-400	180-300	150-200	10-20	35-40	8.6	Bearings, bushings, low-load mechanical components
C84800 Nickel Bronze	700-900	400-700	250-350	12-20	35-40	8.8	Marine components, valves, pump parts
C92200 Leaded Tin Bronze	300-400	180-300	150-200	15-25	35-40	8.5	Bearings, bushings, electrical connectors
C90700 Aluminum Bronze	620-850	400-650	280-340	12-20	30-45	7.7	High-stress industrial parts, valves, pump components

Surface Treatment for Bronze CNC Machined Parts

Surface treatment for bronze CNC machined parts enhances durability, corrosion resistance, and appearance. Techniques like polishing, plating, anodizing, and coating improve wear resistance, reduce friction, and ensure optimal performance in harsh environments, making them ideal for industrial and marine applications.

Custom Bronze CNC Machining Case Study

A custom bronze CNC machining case study showcases tailored solutions for specific client needs, demonstrating how precision machining of bronze parts improves performance, durability, and efficiency. It highlights the challenges, techniques used, and successful outcomes in industries like aerospace and marine.

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Bronze CNC Machining Parameter Suggestion

Bronze CNC machining parameters are critical for optimizing performance, tool life, and part quality. Proper spindle speed, feed rate, cutting depth, and coolant use prevent excessive wear, heat buildup, and material deformation, ensuring efficient machining of bronze alloys in various applications.

Parameters	Recommended Range/Value	Explanation
Spindle Power	3-10 kW	Ensures sufficient power for heavy-duty cutting and maintains consistent machining speeds without overheating.
Spindle Speed	1500-4000 RPM	Balances cutting efficiency and tool wear, ensuring smooth machining of bronze alloys, which can be prone to chip formation at higher speeds.
Feed Rate	100-400 mm/min	Optimized for bronze to ensure clean cuts and prevent excessive heat buildup, which can cause tool wear.
Cutting Depth	1-3 mm	Provides a balance between material removal rate and tool longevity, preventing the cutter from binding or deflecting.
Tool Type	Carbide or Cobalt	Bronze alloys are soft but abrasive, requiring tools that resist wear and maintain sharp edges for precision cutting.
Tool Coating	TiN, TiAlN, DLC	Coatings reduce friction, enhance wear resistance, and improve tool life, especially when machining bronze materials.
Cutting Fluid	Water-based or Synthetic Coolant	Reduces heat buildup, removes chips, and improves surface finish. Bronze machining can generate significant heat.
Depth of Cut	0.2-0.5 mm per pass	Shallow cuts reduce thermal stress on the material and ensure a smoother surface finish without tool overloading.
Chip Load	0.05-0.15 mm/tooth	Prevents excessive chip formation and heat generation while ensuring effective material removal and a high-quality finish.
Tool Path Strategy	Climb Milling	Reduces heat buildup and prevents excessive wear by allowing the tool to cut in the optimal direction relative to the material.
Pitch (Tool Engagement)	0.2-0.5 mm	Ensures consistent chip removal and reduces the likelihood of vibration or chatter during machining of softer bronze alloys.
Coolant Pressure	20-50 bar	Adequate coolant pressure helps in chip evacuation and cooling, especially for deep cuts in bronze, preventing thermal damage.
Machine Rigidity	High Rigidity	High machine rigidity reduces vibrations during machining, improving surface finish and part accuracy when machining tough bronze alloys.
Surface Finish	Ra 0.8-1.6 μm	Ensures a smooth, high-quality surface finish suitable for applications in marine, aerospace, and industrial settings.

Tolerance Suggestions for Bronze CNC Machining

Tolerance suggestions for bronze CNC machining ensure optimal part quality and functionality. By selecting appropriate general and precision tolerances, wall thickness, and minimum drill sizes, manufacturers balance machining efficiency, material strength, and cost-effectiveness for both low and high-volume production.

Tolerance Type	Recommended Range/Value	Explanation
General Tolerances	±0.1 to ±0.5 mm	Ensures reasonable accuracy for standard machining tasks, balancing cost-effectiveness and part functionality for most bronze applications.
Precision Tolerances	±0.01 to ±0.1 mm	For high-precision parts like aerospace or medical components, where tight tolerances are essential for proper fit and function.
Min Wall Thickness	1-2 mm	Thin walls below 1 mm may cause difficulties in machining and structural integrity, while maintaining strength and durability in thin-walled parts.
Min Drill Size	0.5-1 mm	Smaller drill sizes below 0.5 mm are difficult to machine in bronze alloys due to chip removal and heat generation; 1 mm provides a good balance.
Maximum Part Size	500 x 500 x 500 mm	Larger parts require greater machine stability and power; dimensions over this range may need special machines or setups.
Minimum Part Size	5 x 5 x 5 mm	Parts smaller than 5 mm can be difficult to handle and machine, requiring fine equipment, tooling, and setups to avoid inaccuracies.
Production Volume (Prototyping)	Low volume (1-10 parts)	Ideal for testing designs or small production runs, using flexible setups with quick lead times and moderate tolerance variations for proof of concept.
Production Volume (Low Volume)	10-100 parts	Allows for more detailed inspection and quality control, balancing cost and speed for small runs where moderate precision and quick turnaround are needed.
Production Volume (High Volume)	1000+ parts	High volume production can utilize automated systems, reducing part costs, maintaining tighter tolerances, and increasing throughput for mass production.
Lead Time (Prototyping)	5-10 days	Prototyping typically requires faster lead times to validate designs, with a focus on quick turnaround rather than extreme precision.
Lead Time (Low Volume)	10-20 days	For small production runs, lead time increases to accommodate setup, tooling, and quality control, while still ensuring moderate precision and acceptable costs.
Lead Time (High Volume)	20-40 days	High-volume machining requires extended lead times for tooling, setup, and part inspections to ensure consistency and high-quality production at scale.