Types and selection skills of the most popular CNC

2022-09-19
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Types and selection skills of NC tools

tools can be divided into five categories according to the form of workpiece processing surface

tools for processing various external surfaces, including turning tools, planers, milling cutters, external surface Broaches and files; Hole processing tools, including drills, reamers, boring tools, reamers and Broaches for internal surfaces

thread processing tools, including taps, dies, automatic opening and closing thread cutting heads, thread turning tools and thread milling tools

gear processing tools, including specially designed spray nozzle hobs, gear shapers, gear shavers, bevel gear processing tools, etc

cutting tools, including toothed circular saw blade, band saw, hacksaw, cutting lathe tool and saw blade milling cutter, etc

in addition, there are combined cutters

according to the cutting motion mode and the corresponding blade shape, tools can be divided into three categories

general tools, such as turning tools, planers, milling tools (excluding formed turning tools, formed planers and formed milling tools), boring tools, drill bits, reamers, saws, etc

forming cutters. The cutting edges of these cutters have the same or nearly the same shape as the cross-section of the workpiece being processed, such as forming turning cutters, forming planers, forming milling cutters, force measuring pistons with large friction or non rotating broaches, conical reamers and various thread processing tools

generating tools are used to process the tooth surface of gears or similar workpieces, such as hobs, gear shapers, shaving cutters, bevel gear planers and bevel gear milling cutter discs

tool selection is carried out in the human-computer interaction state of NC programming. The cutting tools and tool handles should be selected correctly according to the processing capacity of the machine tool, the performance of workpiece materials, processing procedures, cutting parameters and other relevant factors. The general principle of tool selection is: convenient installation and adjustment, good rigidity, sometimes improper operation will cause problems, and high durability and precision. On the premise of meeting the processing requirements, the electronic tensile testing machine system selects a shorter tool handle for 1 closed-loop system to improve the rigidity of tool processing. When selecting a tool, the size of the tool should be compatible with the surface size of the workpiece being processed. In production, end mills are often used to process the peripheral contour of plane parts; When milling the plane, the carbide blade milling cutter should be selected; When machining bosses and grooves, choose high-speed steel end mills; When processing the rough surface or rough machining holes, the corn milling cutter with cemented carbide blade can be selected; Ball end milling cutter, ring milling cutter, conical milling cutter and disc milling cutter are often used for machining some three-dimensional surfaces and variable angle contours. (end)

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