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

Hard alloy or metal ceramic indexable blade and preparation method thereof

A technology of indexing blades and cermets, applied in metal processing equipment, manufacturing tools, turning equipment, etc., can solve problems such as short service life, low welding strength, low melting point of welding layer and high temperature resistance, and achieve diffusion and compatibility The effect of good performance, reliable performance and excellent performance

Pending Publication Date: 2022-07-22
ZHUZHOU KINGTAL CEMENTED CARBIDE
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the welding strength is low, generally only about 300MPa; the welding layer has a low melting point and cannot withstand high temperatures, and it will melt at about 800°C
Therefore, the high temperature resistance is poor, the performance is unstable, and the service life is short
[0004] CN104874797A discloses a cemented carbide that mixes additives with different alloy raw materials to obtain different mixtures; the overall cemented carbide is set in a gradient by pressing the mixture. This alloy does not take into account the processing method of the cutting blade, and does not Suitable for multi-directional machining of indexable inserts with complex shapes
This structure is not suitable for indexable inserts, and does not consider the problem of forming at different angles

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
  • Hard alloy or metal ceramic indexable blade and preparation method thereof
  • Hard alloy or metal ceramic indexable blade and preparation method thereof
  • Hard alloy or metal ceramic indexable blade and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like Figure 1-Figure 3 As shown, the indexable insert is divided into three parts along the middle position, and is divided into an upper indexable insert cutting layer segment 1 , a lower indexable insert cutting layer 2 and an adhesive layer 3 . Among them, the upper and lower indexable insert cutting layers are divided into cemented carbide. Since cemented carbide generally uses cobalt as the bonding phase component, the bonding layer is composed of cobalt alloy, and the alloy elements are preferably the components contained in the upper and lower layers. The thickness of the adhesive layer is 1-5 mm, and in this implementation, it is preferably 3 mm.

[0042] The upper and lower sintered indexable insert cutting layer blanks and the bonding layer are respectively produced according to the traditional powder metallurgy production method. The specific components and production methods are known in the art. For example, the components of YG8 are 8wt% cobalt and 92wt%...

Embodiment 2

[0047] In this embodiment, the upper and lower indexable blades are divided into cermets. Since cermets generally use nickel as the bonding phase component, and the bonding layer component is nickel alloy, the alloy elements are preferably the components contained in the upper and lower layers.

[0048] Example 2 adopted substantially the same method as Example 1. The difference is that the sintering temperature is 1500°C-1600°C, and the sintering time is 1.5-2.5 hours. Specific components and production methods are known in the art.

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
thicknessaaaaaaaaaa
strengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of indexable blades, and particularly relates to a hard alloy or metal ceramic indexable blade which is formed by bonding a plurality of layers of structures. The indexable blade at least comprises an upper indexable blade cutting layer, a lower indexable blade cutting layer and a middle bonding layer, the upper indexable blade cutting layer and the lower indexable blade cutting layer are the same in component and are made of hard alloy or metal ceramic. The upper indexable blade cutting layer and the lower indexable blade cutting layer are bonded through a bonding layer, so that the upper layer and the lower layer are integrated; the bonding layer is made of cobalt, nickel and iron alloy. Preferably, the cutting layer is obtained by proportioning alloy elements containing components contained in the alloy components of the upper and lower cutting layers. According to the hard alloy, the structure of the indexable blade is adjusted, the upper indexable blade cutting layer and the lower indexable blade cutting layer are bonded through the bonding layer, the upper layer and the lower layer are integrated, the bonding strength between the upper layer and the bonding layer and between the lower layer and the bonding layer is large through component adjustment of the bonding layer, the high-temperature performance is good, the use performance is reliable, and the production cost is low.

Description

technical field [0001] The invention relates to the field of cutting tool materials, and more particularly, to a cemented carbide or cermet indexable insert and a preparation method thereof. Background technique [0002] The production of traditional carbide or cermet indexable inserts is generally formed by a bidirectional press to form a blank, and after sintering, the blank is ground to achieve the final shape and accuracy required; but for some grooves and assemblies The holes are not in the same direction, and the indexable inserts with complex shapes can often only be formed into rough blanks by the press. lead to a substantial increase in processing costs. Or use a multi-directional electronically controlled press with complex structure and control program to form, but the equipment is complex and expensive, the mold cost is high, and the production efficiency is low. [0003] In order to solve the above problems, the indexable blade can also be designed into two up...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/00B23B27/14B22F3/10B22F3/14B22F5/00B22F7/06
CPCB23B27/00B23B27/14B22F7/064B22F5/00B22F3/14B22F3/1035B22F2005/001B23B2222/28B23B2222/16
Inventor 刘靖忠刘灿军窦明见
Owner ZHUZHOU KINGTAL CEMENTED CARBIDE