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

Superhard insert

A technology of superhard blades and blades, which is applied in the direction of cutting blades, forming knives, accessories of tool holders, etc. It can solve the problems of easy cracking and breaking, and achieve the effect of improving productivity and increasing tool life

Inactive Publication Date: 2012-05-16
ELEMENT SIX LTD
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although superhard materials are extremely hard, they are generally not as strong and tough as cemented carbide materials, and therefore they are more prone to cracking and shattering

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
  • Superhard insert
  • Superhard insert
  • Superhard insert

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0047] Polycrystalline diamond (PCD) compacts are formed into inserts for cutting tools. The PCD compact constitutes a PCD layer integrally bonded to a cobalt-sintered tungsten carbide support substrate, the PCD comprising a plurality of intergrown diamond particles and cobalt dispersed in interstices between the diamond particles. The diamond particles have an average size in the range of from about 0.5 microns to 2 microns in terms of equivalent circular diameter (ECD) and constitute at least 85% of the surface area of ​​any polished surface of the PCD. The transverse rupture strength of PCD is about 2,209 MPa, and its fracture toughness measured as K1C is about 13.4 MPa.m 1 / 2 , as is well known in the art. PCD has about 166W.m -1 .k -1 thermal conductivity. PCD tool inserts are characterized by the following geometric parameters:

[0048] R1=1.5mm (radius of curvature of the arcuate surface of the rake face)

[0049] R2 = 1.2mm (radius of curvature of the arcuate surf...

example 2

[0054] PCD knife inserts were made as described in Example 1, except that the PCD knife inserts were characterized by the following geometric parameters:

[0055] R1=9mm (radius of curvature of the arcuate surface of the rake face)

[0056] R2 = 5mm (radius of curvature of the arcuate surface of the side)

[0057] R3 = 0.05mm (the radius of curvature of the rounded blade)

[0058] ω=66°(wedge angle)

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

PropertyMeasurementUnit
Radius of curvatureaaaaaaaaaa
Login to View More

Abstract

A superhard insert for a machine tool, comprises a superhard cutter structure 20 defining a rake face 22, a flank 24 and a rounded cutting edge 26 formed by the transition between the rake face 22 and the flank 24; the flank 24 comprises a convex arcuate surface portion 28 extending away from the cutting edge 26, the arcuate surface portion 28 has a radius of curvature R2.

Description

technical field [0001] The present invention relates to a superhard insert for a machine tool particularly, but not exclusively, for machining objects comprising metal, and more particularly for forming grooves in objects comprising titanium or superalloys in an object, or to divide, cut or turn that object. The invention also relates to a tool comprising superhard inserts and a method for machining an object using such a tool. Background technique [0002] Cutting tools are used to form, drill or degrade a workpiece or object by removing material from the workpiece or object. Examples of cutting tools are: turning, milling or drilling tools; rock drilling tools, such as drill bits for oil and gas drilling; and percussion tools, such as jackhammers for pavement reduction and soft rock mining. Such tools typically include one or more cutting inserts, typically including at least one cutting edge. Hard or abrasive workpiece materials such as metal alloys, ceramics, cermets,...

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): B23B27/04B23B29/04
CPCB23B2200/242B23B27/04B23B2226/125B23B2200/245B23B27/145B23B2200/123B23B2226/315B23B2200/083Y10T82/10Y10T407/2268Y10T407/24B23B27/14B23B29/04
Inventor C·J·比勒陀利乌斯
Owner ELEMENT SIX LTD