Pump components are predominantly produced as castings, with machining allowances varying according to part size. Larger workpieces often require increased allowances during casting to ensure the successful completion of final machining operations.
When selecting cutting tools for pump parts with significant allowances and high hardness, it is essential to consider both the performance and hardness of the tool material.
For such applications, carbide tools may lack sufficient hardness.
When machining pump components with irregular surfaces,
carbide tools are prone to accelerated wear, casting defect-related issues, and high cost per part.
Ceramic tools, while hard, are brittle and suitable only for finishing or light machining operations with minimal allowance.
Moresuperhard’s
CBN (Cubic Boron Nitride) inserts offer enhanced impact resistance compared to traditional CBN tools, enabling efficient turning of components with large machining allowances.
These inserts eliminate common problems such as poor wear resistance and chipping, delivering a machining performance that exceeds carbide tools by more than ten times and ceramic tools by several times. The result is significantly improved efficiency and greatly reduced tooling costs.
Application Case
- Insert Model: RNGN120400
- Workpiece: Pump Parts
- Material: High-Hardness Cast Iron
- Hardness: 60–63 HRC
Machining Parameters:
Milling:
- Cutting Diameter: 63 mm
- RPM: 1200
- Cutting Speed: 230 m/min
- Feed per Tooth: 0.13 mm
- Cutting Depth: 1.5 mm
Turning:
- Speed: 12–20 RPM
- Workpiece Diameter: 2.0–2.5 m
- Feed Rate: 0.5 mm/rev
- Cutting Depth: 2 mm
Conclusion
Moresuperhard’s CBN inserts provide a reliable and cost-efficient solution for machining high-hardness cast iron pump components.
With superior wear resistance, impact toughness, and significantly longer tool life, these inserts are ideal for heavy-duty turning and milling operations—helping manufacturers increase productivity and reduce machining costs.
