As a CNC machining center programmer, you must first be very familiar with the CNC machining process, and an understanding of CNC cutting tools and components is essential. Before programming, you should first analyze the model, such as what equipment is needed for mold processing, what size knife should be used for roughing, what size knife should be used for fine milling, whether the length or rigidity of the tool is consistent. the standard, etc. This requires a complete understanding of cutting tool performance and selection.
CNC machining tools must adapt to the high speed, high efficiency and high degree of automation of CNC machine tools. They should generally include universal tools, universal connection tool holders and a small number of special tool holders. The tool holder is connected to the tool and mounted on the power head of the machine tool, so it has been gradually standardized and serialized. The classification of CNC tools is mainly based on the following basis.
Depending on the structure of the tool, it can be divided into:
Integral cutter: the cutter is integrated and made of a single piece without separation;
Welded cutter: If the welding method is used to connect the welded cutter, the cutting head and cutting rod are divided into welded knives;
Special cutting tools: such as compound cutting tools, shock absorber cutting tools, etc.
Tool selection:
In CNC machining, the choice of cutting tools is directly related to the machining precision, the quality of the machined surface and the machining efficiency. Selecting the appropriate tool and setting reasonable cutting parameters will enable CNC machining to achieve the best processing quality at the lowest cost and in the shortest time.
In short, the general principles of tool selection are: easy installation and adjustment, good rigidity, durability and high precision. In order to meet the processing requirements, try to choose a shorter tool holder to improve the processing rigidity of the tool.
CNC milling cutters are mainly divided into flat bottom cutters (end mills), round nose cutters and ball nose cutters in terms of shape.
Alloy tool parameters
In actual processing, end mills are often chosen to process the contour periphery of flat workpieces, high-speed steel end mills (white steel milling cutters) are often chosen to process straight bosses and grooves, and mills corn blades inlaid with carbide blades are often chosen. to process the blanks. For the surface, choose ball cutter, annular cutter, cone cutter and disc cutter to process some variable three-dimensional profiles and bevel contours. The alloy knife has good rigidity and is not prone to stabbing, so it has the best effect when used for mold finishing. Alloy knives have side edges like white steel knives, and their side edges are often used when precision milling straight copper walls.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
