In the actual cutting process, only the use of advanced numerical control cutting and optimization of nesting technology, can not guarantee the product cutting quality and welding quality, but also easy to cause serious waste of steel, this phenomenon is particularly prominent in the mechanical cutting.
Mechanical cutting refers to the use of automatic cutting machines such as car cutters, straight bars, shears, and saws to cut steel. Mechanical cutting is widely used due to its simple operation, low labor cost, labor intensity that is greatly reduced compared to manual cutting, and mechanical cutting quality and cutting efficiency are greatly improved compared to manual cutting. However, mechanical cutting is generally limited to the cutting of rectangular parts and one-dimensional profiles and bars, etc. It is not possible to cut shaped parts; cutting is performed according to the order of the parts, and the operator has no time to consider and calculate the optimized sets, resulting in the waste of steel. serious.
Mechanical cutting is currently dominant in the production of steel cutting stock in China, and the equipment has a large amount of possession and application is very common. At the same time, it also caused serious waste of steel. The following analysis from the specific equipment:
1. Types of cutting shears The cutting shears include manual or pedal-type shears, CNC shears, and manual and automatic shears for cutting coils. Cutting with a shear simply cuts in order of the size and number of rectangular parts, leaving no room for waste. The shearing machine has a large number of blanks and there are too many possibilities for optimizing the discharge of rectangular parts. The optimization of nesting calculations is very complicated.
2. Saw Cutting Sawing As the cutting tool, the oldest equipment has the largest amount of equipment, ranging from simple civil hand saws, electric saws, industrial general sawing machines, to advanced CNC sawing machines. Saw cutting has long been accustomed to simply cutting in order of parts, so that excess material is often handled as industrial waste, resulting in an endless waste. Using optimized nesting software at this time, you can increase the utilization of steel for sawing.
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