Tungsten carbide boring bar is one kind of boring tool, usually round handle, also has larger workpiece use square tool pole, the most commonly used place is the inner hole processing, expanding hole, copying shape and so on. One or two cutting parts, specially designed for rough machining, semi-finishing or finishing cutting tools for existing holes. Boring tool can be used in boring machine, lathe or milling machine.

The machining process includes the machining and semi-finishing of the hole in the blind hole, which can only be solved by the inner chip deep hole boring tool. In the production site, there are the following disadvantages of the deep hole boring cutter with embedded carbide inside the carbide, which is narrow, and the chip is not smooth and easy to be blocked. The support is easy to wear, the diameter is easy to change; The size of the cutter is large and significant. Therefore, it is necessary to improve the deep hole boring tool in the series.

Whether the product structure and production feature, when processing need to follow the following principles: for processing tolerance zone, code-named H11 high strength alloy steel and high-strength aluminum alloy cylindrical deep hole parts as the main processing objects, and determine the application of deep hole boring cutter size and other main parts of the diameter size; From the existing machine tools in the factory, the size of the connecting part is unified, and the cutter bar size is reduced. The hard alloy blade adopts the general model and number of the national standard.

Chip in deep hole boring cutter is a kind of single edge cutting tool, cutting through the boring cutter and cutter bar inside the hollow out, is mainly used to expand the existing hole hole or blind hole, steps and fix its axis is not straight. Chip in deep hole boring cutter has the following characteristics: 1. cemented carbide welding blade on the blade or the knife pad, briquetting and screw compression in the blade head, welded blade not replaced, blade wear can be replaced after installation; 2. the hard alloy guide bar through cant take briquetting pressure and fixed on the boring cutter body, and the cutting plane across 90 degrees and lower differ with cutting edge installation groove, and cooling fluid pressure for lift force generated by offsetting radial and tangential cutting force, the layout and structure of single edge cutting force along the cutting edge is round shape; The tungsten carbide boring bar body is connected by single rectangle thread and cutter bar.

The welding structure of the traditional boring tool is made of cemented carbide blade. Remove the supporting part of the bakelite, adopt the lengthened hard alloy guide strip, and the guide and support function, the cutter body structure is simple, enhance the durability. Expand the chip removal channel to eliminate the blockage and remove the debris.

It is proved by repeated practice on the production site that the formation of cuttings and the effect of cuttings are directly related to the life and quality of the boring cutter. The main factors that influence the cuttings are the physical mechanical properties of the processed materials, the geometrical parameters of the tool and the cutting amount. After determining the machining object, the size of the cutting table of the boring cutter and the size of the walking knife are the main functions.

Hide Comments | Add Comment