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Tangential cutting insert and milling cutter

A technology for cutting blades and cutting edges, applied in the direction of milling cutting blades, milling cutters, forming knives, etc., can solve the adverse effects of chip formation and discharge, the value limitation of the blade axial rake angle, the increase of "vertical" range, etc. question

Active Publication Date: 2013-11-06
ISCAR LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Be aware that the magnitude of the insert axial rake angle is limited for practical reasons
Any increase in blade axial rake will result in an increase in the "vertical" extent of the incident angle surface (see US 5,333,972 image 3 ), which will adversely affect chip formation and evacuation

Method used

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  • Tangential cutting insert and milling cutter
  • Tangential cutting insert and milling cutter
  • Tangential cutting insert and milling cutter

Examples

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Embodiment Construction

[0035] In the following description, various aspects of the invention will be described. For purposes of explanation, specific arrangements and details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details given herein. Furthermore, well-known features may be omitted or simplified in order not to obscure the present invention.

[0036] First, refer to Figures 1 to 3 , shows a tangential cutting insert 10 according to an embodiment of the invention. The cutting insert 10 has two opposing side surfaces 12 and a peripheral surface 14 extending therebetween. The cutting insert 10 has a through bore 16 extending between the side surfaces 12 . The through bore 16 has a bore axis B about which the cutting insert 10 has 90° rotational symmetry. The peripheral surface 14 has four identical end surfaces 18 . Each end surface 18 ex...

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PUM

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Abstract

A tangential cutting insert has two opposing side surfaces and a peripheral surface extending between the side surfaces. The peripheral surface has four identical end surfaces. The intersections of the end and side surfaces include major cutting edges. The intersection of end surfaces and adjacent end surfaces include minor cutting edges. Each of the major and minor cutting edges has a rake surface extending in an inward direction of the cutting insert. In a side view of the cutting insert the major cutting edges are concave.

Description

technical field [0001] The invention relates to a tangential cutting insert for use in milling operations and a milling tool for a tangential cutting insert. Background technique [0002] The tangential cutting insert is oriented in the insert holder such that during a cutting operation on a workpiece, cutting forces are oriented along the main (thicker) dimension of the cutting insert. An advantage of this arrangement is that the cutting insert can withstand higher cutting forces than when oriented such that the cutting force is directed along a secondary (thinner) dimension of the cutting insert. [0003] In EP 0 769 341 a face milling tool is disclosed which employs a double-sided indexable tangential cutting insert having a prismatic shape, with two opposing substantially rectangular rakes ( rake) surface. The cutting insert has a substantially "negative" geometry and thus provides the necessary clearance between the cutting insert and the workpiece when installed in a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/06B23C5/22
CPCB23C2200/367B23C2200/0466B23C2200/085B23C2200/208B23C2200/286B23C5/2221B23C2200/203B23C2200/125B23C2210/168B23C5/06B23C5/2213B23C2200/287Y10T407/235Y10T407/1924Y10T407/192Y10T407/23
Inventor A.萨特兰A.滋本伯格D.陈
Owner ISCAR LTD