C86400 Leaded Bronze

Introduction to C86400 Leaded Bronze

C86400 Leaded Bronze is a high-performance copper alloy consisting primarily of copper, with added lead, tin, and zinc for improved machinability and strength. Known for its excellent wear resistance and outstanding machinability, this alloy is particularly suitable for applications requiring durability under heavy wear conditions. Compared to other bronze alloys, C86400 offers superior resistance to friction, making it ideal for use in components that are subject to continuous motion or stress. For precision machining, C86400 Leaded Bronze allows for the efficient production of intricate, high-quality components.

C86400 Leaded Bronze is widely used in CNC machined parts across various industries, including automotive, aerospace, and industrial equipment. Its excellent machinability and wear resistance make it a top choice for parts such as bushings, bearings, and gears, where the alloy's ability to withstand friction and provide a smooth, long-lasting finish is crucial.

Chemical, Physical, and Mechanical Properties of C86400 Leaded Bronze

Chemical Composition (Typical)

Physical Properties

Mechanical Properties (Annealed Temper)

Key Characteristics of C86400 Leaded Bronze

Excellent Machinability

C86400 Leaded Bronze is well-known for its superior machinability, thanks to the addition of lead, which reduces friction during machining. This alloy is easier to cut, drill, and shape than other bronze alloys, allowing for more efficient manufacturing processes and reducing tool wear.

High Wear Resistance

C86400 Leaded Bronze excels in applications that experience continuous friction and wear. Its combination of copper, tin, and lead results in an alloy that resists abrasion, making it ideal for components like bearings, bushings, and gears that are subjected to constant motion.

Good Strength and Durability

This bronze alloy provides an excellent balance of strength and durability, ensuring that parts remain strong and resist deformation under stress. The alloy is particularly useful for applications in harsh environments where mechanical performance is critical, such as in automotive and industrial machinery.

Superior Corrosion Resistance

While not as resistant to corrosion as some other copper alloys, C86400 Leaded Bronze offers a reasonable resistance level to atmospheric corrosion and is suitable for applications where exposure to moisture or chemicals is limited. For marine environments, additional surface treatments may be required for enhanced protection.

Non-Galling Properties

Due to its lead content, C86400 Leaded Bronze possesses excellent non-galling properties. This means that components made from this material are less likely to seize or gall, even when subjected to high-pressure and high-friction conditions.

CNC Machining Challenges and Solutions for C86400 Leaded Bronze

Machining Challenges

• Chip Formation C86400 Leaded Bronze can produce long chips during machining, which may clog the machine and reduce efficiency.

  Solution: Use chip breakers to control chip length and adjust feed rates to reduce chip buildup. Additionally, using air or coolant can help clear chips effectively.

• Tool Wear Although adding lead improves machinability, C86400 Leaded Bronze can still cause tool wear due to its hardness, especially when machining at high speeds.

  Solution: Employ carbide or ceramic cutting tools designed for wear resistance and regularly monitor tool conditions to avoid excessive wear.

• Surface Finish Achieving a smooth surface finish can be challenging, particularly due to the alloy’s tendency to form rough edges during cutting.

  Solution: Use sharp, high-quality tools, and apply sufficient lubrication to reduce friction and achieve a smooth surface. Moderate cutting speeds can also help improve surface quality.

• Work Hardening Like many copper alloys, C86400 Leaded Bronze may experience work hardening if excessive force or speed is applied during machining.

  Solution: Maintain moderate cutting speeds and use proper coolant to reduce heat buildup and prevent work hardening.

Optimized Machining Strategies

C86400 Cutting Parameters (ISO 513 Compliance)

Typical Machining Methods for C86400 Leaded Bronze

Surface Treatment for C86400 Leaded Bronze CNC Parts

• Electroplating: Enhances corrosion resistance and provides a shiny finish for parts such as connectors and valves.

• Polishing: Achieves a high-gloss finish for decorative parts and improves their functionality.

• Brushing: Creates satin or matte finishes for parts exposed to frequent handling, such as mechanical components.

• PVD Coating: Adds a durable coating that increases wear resistance and extends the life of mechanical components.

• Passivation: Improves corrosion resistance, especially for parts exposed to aggressive chemicals.

• Powder Coating: Provides a thick, protective finish ideal for parts exposed to UV light and harsh conditions.

• Teflon Coating: Adds non-stick and chemical-resistant properties, ideal for mechanical applications.

• Chrome Plating: Provides a glossy, durable coating that resists corrosion and enhances the appearance of components.

Industry Applications of C86400 Leaded Bronze

• Aerospace Industry: Used for manufacturing components such as bushings, bearings, and connectors in the aerospace sector.

• Automotive Industry: Commonly used in automotive applications such as gears, bearings, and transmission components that require high strength and wear resistance.

• Marine Industry: Ideal for marine hardware like propellers, valves, and seawater components due to its corrosion resistance.

• Industrial Equipment: Used in machinery parts like bushings and bearings, where high wear resistance is crucial.

FAQs

1. What is the typical machinability of C86400 Leaded Bronze for CNC machining?

2. How does C86400 Leaded Bronze perform in applications involving continuous motion?

3. What are the best surface treatments for C86400 Leaded Bronze to improve corrosion resistance?

4. How does C86400 Leaded Bronze compare to other alloys regarding wear resistance?

5. What industries most commonly use C86400 Leaded Bronze for CNC machining?