Unlock instant, AI-driven research and patent intelligence for your innovation.

Cutting insert, and cutting method

A technology of cutting inserts and cutting methods, applied in cutting inserts, forming knives, turning equipment, etc., can solve the problems of reduction of finishing precision and quality of machined surfaces, joint marks, and step difference of connecting lines, etc., to achieve precision and quality improvement, The effect of suppressing wear length and suppressing increase

Active Publication Date: 2010-03-03
MITSUBISHI MATERIALS CORP
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, cutting is not performed while the insert body is retracted temporarily, and as a result, machining efficiency is affected
[0012] In addition, in such a cutting method, the finishing cutting of the bottom surface of the groove is carried out by a process of feeding the insert main body twice in two directions opposite to directions intersecting with the longitudinal direction by retreating the insert main body at intervals. Therefore, due to these two processes, steps and seams are likely to occur on the connecting line between the processed surfaces, and the finishing accuracy and quality of the processed surfaces are reduced.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cutting insert, and cutting method
  • Cutting insert, and cutting method
  • Cutting insert, and cutting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0121] Figure 1 to Figure 8 The first embodiment of the cutting insert of the present invention is shown. The insert body 1 of this embodiment is formed: formed of a hard material such as cemented carbide, and has a substantially square shaft shape (square column shape) extending along the axis L; The axis L is vertical and located in the length direction of the blade main body 1 (axis L direction. Figure 2 to Figure 4 in the center of the left-right direction); it is a symmetrical shape with respect to the plane N, which is perpendicular to the plane M and is located in the width direction of the blade main body 1 ( figure 2 as well as Figure 4 in the up and down direction. Figure 5 in the left-right direction) center, and including the axis L along the thickness direction of the blade main body 1 ( image 3 as well as Figure 5 in the up and down direction) extend.

[0122] Cutting edge portions 2 are formed at longitudinal ends (both ends) of the insert body 1 . ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A cutting insert, wherein: a cutting edge part having a quadrangular shaped cutting face, which is provided with a pair of side cutting edges extending in a longitudinal direction of an insert body, and a front cutting edge between ends of the side cutting edges that extends in a direction that intersects the longitudinal direction, is formed at an end of the insert body having a bar-shape; and viewed from a direction facing the cutting face perpendicularly to the longitudinal direction, at least one of a pair of corner edges where the side cutting edge and the front cutting edge intersect isformed in a convex shape such that it has a point of inflection at which, after a tangent line that makes contact with the corner edge rotates in a direction extending in the longitudinal direction along the corner edge from the front cutting edge, its direction of rotation changes, and it joins the side cutting edge.

Description

technical field [0001] The present invention relates to a cutting insert for grooving and parting off a workpiece in turning, and a cutting method based on such a cutting insert. This application is based on Japanese Patent Application No. 2007-111638, and uses the content thereof. Background technique [0002] As such a cutting insert for grooving and parting, for example, the following patent document 1 proposes a cutting insert in which a side cutting edge (side cutting edge) and a main cutting edge (face cutting edge) are formed on one side. The corner cutting edges are included between them; each corner cutting edge includes a primary curved cutting edge extending from the main cutting edge; the curved wiper edge extends from the primary curved cutting edge to the side cutting edge; the primary curved cutting edge has a ratio of curved The wiper edge has a smaller radius of curvature; furthermore, the side edges (cutting edges) also have a smaller radius of curvature t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23B27/14B23B27/04B23B27/00
CPCB23B2270/54B23B2220/12B23B27/04B23B2200/204Y10T407/23Y10T407/235Y10T407/24Y10T407/25Y10T408/03B23B27/02B23B27/14
Inventor 长屋秀彦麻生典夫今井康晴
Owner MITSUBISHI MATERIALS CORP