CNC加工では, 表面精度は部品の品質を示す最も重要な指標の 1 つです, 組立精度に直接影響する, 耐摩耗性, そして全体的な製品パフォーマンス. しかし, due to machining parameters, tool conditions, and operational errors, poor surface accuracy often occurs. Below is an analysis of the common causes and corresponding improvement methods to help optimize machining quality.
Causes of Poor Surface Accuracy:
- Improper cutting parameters, resulting in rough workpiece surfaces
- Blurred tool edges
- Tool clamping too long, with excessive tool clearance
- Improper chip removal, air blowing, and oil flushing
- Programming tool feed method (consider down milling if possible)
- Burrs on precision CNC machined workpieces
Improvement Methods:
- Ensure proper settings for cutting parameters, tolerances, stock allowances, and speed and feedrates
- Operators should regularly inspect and replace tools
- When clamping tools, operators should ensure they are as short as possible, with minimal tool clearances
- Ensure proper speed and feedrate settings for downcuts with flat, round, and round nose tools
- Workpiece burrs: This is directly related to the machine tool, 道具, and tool feed method. Understanding the machine tool’s performance is crucial for correcting burred edges.
