I. Dimensional Accuracy Issues
1. Dimensional Deviation Exceeds Requirements: The actual cutting size deviates significantly from the set size. This is mainly caused by wear and loosening of the feed screw/coupling, failure to update tool compensation parameters in a timely manner, and decreased accuracy of the feed motor.
2. Accuracy Drifts Over Time: Accuracy gradually decreases after the equipment has been running for a period of time. This is common in models without temperature compensation, where thermal expansion of metal parts causes tool holder position displacement.
3. Inconsistent Dimensions: Poor dimensional consistency between batches is generally caused by inaccurate positioning of the feed device or unstable air pressure leading to material displacement.
II. Shape Accuracy Issues
1. Cutting Surface Perpendicularity Failure: The cutting end face is tilted. This is mainly caused by the saw blade not being perpendicular to the cutting table, an uneven sawing table, and wear on the verticality of the support plate.
2. Material Deviation and Skew Cutting: The side plate of the feed device and the side plate of the sawing table are not on the same horizontal plane, causing material feeding deviation.
3. Obvious defects in the cut surface: Fish-scale patterns, saw marks, and step marks are often caused by poor saw blade quality, inconsistent tooth height, inadequate grinding, excessive feed speed, or insufficient lubrication.
III. Operational Stability Issues
1. Excessive spindle runout: Out-of-tolerance spindle precision causes saw blade wobbling, resulting in inconsistent cut sizes.
2. Material displacement deviation: Insufficient material clamping by the clamping device or difficulty in securing irregularly shaped aluminum foil leads to material displacement during cutting, resulting in substandard precision.
3. Feeding mismatch: A mismatch between cutting speed and feeding speed, especially with heavier/ultra-thin aluminum foil, easily leads to abnormal precision.
