The quality of the tool mainly refers to the dimensional accuracy of the blade, the isolation sleeve and the gasket, the surface condition, the edge condition and the specification. The dimensional accuracy is not high and the specifications are not matched, and the gap of the matching knife can not be controlled, thereby affecting the product width accuracy. Produces burrs, skirts, knife marks, scratches and other quality defects. The edge of the blade is not in good condition, and there are damages and burrs, which will cause quality defects such as burrs and uneven edges in the product.
The process assigned to the process mainly refers to the current and coordination of the tool to achieve horizontal clearance, vertical clearance, and product width control.
Horizontal gap control. The horizontal gap is suitable, and the cross-sectional condition of the cut product is that the smooth and straight shear plane is straight with the line of the matte tearing plane, and the boundary between the shear plane and the matte tearing plane is straight and flush with the surface of the material.
The horizontal gap is too small, and the cross-sectional area of the cut product is curved with the smooth quality of the shear plane and the matte tear plane, and the outer edge quality of the shear plane and the matte tear plane is flush with the material surface. When the machine is cut, the load is large and it is easy to damage the blade.
The horizontal gap is too large, and the cross-sectional condition of the cut product is smooth and straight, and the outer wire is bent. The edge boundary of the light-free tearing plane is curved, and the burr is generated in the plane of no light tearing.
Surface quality: mainly refers to the fact that due to the depressions and bulges on the surface of Kun, there are foreign objects adhered to the surface of the Kun, which causes print scratches and oil stains on the surface of the product; due to improper selection of the tension pad and improper production process Scratches on the surface of aluminum and accumulation of oil and aluminum powder; scratches caused by improper tension between the uncoiler and the unwinder.
Main keywords: aluminum alloy sheet