Common Grinding Defects and Solutions
In high-speed CNC precision grinding, maintaining surface integrity is critical. Below are common defects like grinding burn and chatter marks, along with professional troubleshooting solutions.
1. Grinding Burn
Phenomenon: Discoloration (blue/brown) on the workpiece surface, indicating thermal damage and reduced hardness.
Causes & Solutions:
- Excessive feed rate: Reduce the depth of cut ($).
- Wheel is too hard or glazed: Use a softer grade wheel or dress the wheel more frequently.
- Insufficient coolant: Increase coolant flow, optimize nozzle position, and ensure the coolant is clean.
2. Chatter Marks (Vibration Marks)
Phenomenon: Regular wave-like patterns on the ground surface.
Causes & Solutions:
- Wheel out of balance: Re-balance the grinding wheel dynamically.
- Machine vibration: Check spindle bearings, machine mounts, and surrounding environmental vibrations.
- Incorrect dressing: Ensure the diamond dresser is sharp and the dressing traverse rate is consistent.
Zhengzhou Zhongxin Grinding Wheel Co., Ltd.
We provide advanced Ceramic Bond and CBN grinding wheels designed to minimize thermal damage and maximize precision.
Contact Us:
- Phone/WhatsApp: +86 15538050608
- Email: root@shalun.net
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