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Cutting tool

A technology of cutting elements and milling cutters, which is used in wood turning tools, manufacturing tools, wood drilling tools, etc., can solve the problems of expensive, abrasive and thinning of cutting elements carbide, and achieve the effect of long service life

Inactive Publication Date: 2010-12-22
BOEHLERIT GMBH & CO KG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although in the PIM method the cutting elements can also be produced in particular from wear-resistant cemented carbide, this method also has the disadvantages of being relatively expensive on the one hand and on the other hand often being carried out during manufacture, especially on the blank (Gruenling). Distortion of cutting element blanks in case of necessary handling
In the known cutting elements, it is not taken into account that in use, due to the need for regular regrinding or sharpening of the main cutting edge, it will inevitably cause abrasion of the cutting element carbide, and irreparable thinning occurs. Due to this shortcoming , the cutting element can no longer withstand the highest cutting load after several regrinding treatments

Method used

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Experimental program
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Embodiment Construction

[0024] specific implementation plan

[0025] figure 1 A top view of a cutting element 1 according to the invention is shown in detail. The cutting element 1 has a central, substantially circular central part 2 in plan view, on which two wings at an angle of 180° are integrally formed. The cutting element 1 consists entirely of cemented carbide, produced by pressing and sintering the original component in powder form.

[0026] The middle part 2 has two ends, wherein at one end of the middle part 2 on the central axis X there is arranged a knife tip 3 and at the opposite end a welding tip 4 ( figure 2 ). As mentioned, two wings 5 ​​are integrally formed on the central part 2 , which have a so-called front cutting edge 6 and a main cutting edge 7 on the end face 51 facing the knife tip 3 . During cutting work, for example when cutting wood, the front cutting edge 6 is responsible for cutting the fibres. Clear or the main blade 7 plays a crushing role. Correspondingly, by m...

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PUM

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Abstract

The cutting element (1) has a cylindrical central part (2), on which an end of a cutting tip (3) is provided and on another end a soldering tip (4) is provided. Blades are formed rotation-symmetric to an axis of central part and radially extend from the central part towards outer. The blades are formed at a front side (51) with a tapered ridge (8) connected to a main cutting edge. The blades are formed on a fastening side (52) in an area corresponding to the ridge in a same contour in a reinforced manner. The cutting element is formed in a single piece from pressed and sintered hard metal.

Description

technical field [0001] The invention relates to a cutting element for a cutting tool such as a drill bit or a milling cutter, having a generally cylindrical middle part with a cutting point at one end, a welding point at the other end, and radially extending from The central part extends outwards, preferably wings formed rotationally symmetrically to the central part axis, which each have an end face facing the tip, a front cutting edge arranged transversely on the outside and a main cutting edge extending outwards from the central part, and a The opposite fixed side facing the welding tip, wherein the wings form a downwardly sloping back adjoining the main cutting edge on the end face. [0002] Furthermore, the invention relates to a cutting tool with such a cutting element. technical background [0003] According to the state of the art, cutting elements of the type mentioned above are used, for example, for end mills or assembly drills, and are preferably produced by pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B51/00B23C5/02
CPCB27G15/00B23B51/00B23B2251/02B23B2251/50B23B2251/14B23B2240/08A61K8/9711A61K8/9717A61K8/9722A61K8/9728
Inventor A·基塞尔巴赫H·哈默W·巴恩塞勒S·费斯特里泽
Owner BOEHLERIT GMBH & CO KG