PCBN GRADES
PCBN GRADE (IN STOCK)
PCBN GRADE (ORDER GRADE)
1. HARD TURNING
When machining hardened steel with a PCBN insert, it's crucial to check for interruptions in the process. The most suitable PCBN grade for your machining depends on your workpiece design. Refer to the picture below to see how different grades become more appropriate as the tool path transitions to a tougher configuration.
CBN vol (%)
50~55%
Wear resistance
Chemical wear resistance
Fracture toughness
Continuous
Characteristics
EB428 has excellent high temperature wear resistance and is suitable for continuous processing of heat-treated steel and high-speed processing of spherical graphite cast iron. This grade has an excellent heat resistance with multi-layer coating
Continuous -medium Interrupted
CBN vol (%)
65~70%
Wear resistance
EB419 is commonly used for continuous to intermediate heat treatment steel machining and has excellent wear resistance. This grade is characterized by excellent heat resistance, enhanced by a multi-layer coating.
Chemical wear resistance
Fracture toughness
2. POWDER METAL MACHINING
Powder metal can be categorized into high-alloyed and low-alloyed metals, each possessing distinct properties and hardness levels. The EHWA PCBN grade, renowned for its exceptional wear and impact resistance, contributes to enhanced tool life and improved surface roughness.
CBN vol(%)
70%
Wear resistance
Continuous - Light Interrupted
Characteristics
The EB54X, with its small particles and excellent impact resistance, exhibits outstanding performance in intake and exhaust valve seat processing.
Chemical wear resistance
Fracture toughness
CBN vol(%)
80-85%
Wear resistance
Chemical wear resistance
Fracture toughness
Continuous - Light Interrupted
Characteristics
EB710 is a high-content grade with fine grain that shows excellent wear resistance and impact resistance. It is well-suited for both continuous and light-interrupted machining of sintered alloys.
3. CAST IRON MACHINING
Machining Cast Iron: PCBN excels in processing grey cast iron, ductile cast iron, and high-hardness cast iron. Compared to other conventional tools on the market, EHWA's PCBN line allows for high-speed performance with excellent surface quality and tool life.
