Material Properties of Beryllium Bronze

Beryllium bronze is an alloy material with excellent mechanical properties and corrosion resistance, commonly used for manufacturing mechanical parts, ship components, and other applications. Its primary components are copper, tin, and a small amount of beryllium. It has high hardness but relatively poor machinability compared to other copper alloys, making processing more challenging.

Selection of Cutting Tools

Due to the high hardness of beryllium bronze, high-hardness cutting tools must be selected for processing. It is recommended to use carbide tools and PCD (polycrystalline diamond) tools to ensure processing efficiency and quality.

Recommended Cutting Speed, Feed Rate, and Cutting Depth

During the machining of beryllium bronze, the three parameters of cutting speed, feed rate, and cutting depth must be precisely controlled to ensure machining effectiveness and operational safety.

l 1. Cutting Speed

Cutting speed refers to the linear speed of the rotating tool. It is recommended to use a lower cutting speed to avoid premature tool wear. The selection of cutting speed is related to the material, hardness, and diameter of the cutting tool, generally ranging from 30 to 70 m/min.

l 2. Feed Rate

Feed rate refers to the speed at which the workpiece moves during the cutting process. When machining beryllium bronze, it is recommended to use a smaller feed rate to avoid severe tool wear and rough workpiece surfaces caused by excessive feed rates. The recommended feed rate is between 0.1 and 0.2 mm/r.

l 3. Cutting depth

Cutting depth refers to the depth cut by the tool in a single cutting operation. Due to the high hardness of beryllium bronze, the cutting depth should be controlled below 0.1 mm per pass.

Processing Precautions

1. When drilling holes, use a drill bit with good rigidity, and drill the hole first before reaming.

2. During cutting, ensure proper cooling and lubrication. Use a coolant spray method to reduce processing temperature and minimize the damaging effects of cutting heat on the tool.

3. During processing, promptly replace severely worn cutting tools to ensure processing quality and efficiency.

The above is an introduction to the processing parameters of beryllium bronze. In actual operation, operators need to make precise adjustments and controls based on specific conditions to ensure safety and processing effectiveness during processing.