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Preparation process for nanometer modified Ti(C&N)-based metal ceramic cutting tool

A nano-modified, ceramic tool technology, used in mechanical equipment, other manufacturing equipment/tools, turbines, etc., can solve problems such as poor toughness and poor chipping resistance, and achieve improved workability, reduced friction, and inhibited long-term growth. big effect

Inactive Publication Date: 2015-06-10
QINGDAO PINGDU JIUDIAN GOLD MINE
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Problems solved by technology

Although Ti(C&N)-based cermet tools have high hardness, wear resistance, high temperature softening resistance and oxidation resistance, they also have problems such as plastic deformation resistance, poor chipping resistance and toughness.

Method used

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Embodiment Construction

[0008] A preparation process for nano-modified Ti(C&N)-based cermet cutting tools, which is characterized in that: nano-modified Ti(&N)-based cermet materials are prepared by optimizing the dispersion process and nano-addition amount, and adopt liquid phase sintering method to prepare knives. The basic composition of nano-TiN modified TiC-based cermet tools: 54%TiC, 10%TiN (nm), 15%Mo, 20%Ni, 1%C.

[0009] Specific process: Use an ultrasonic instrument to disperse TiN nano powder, weigh the initial raw materials TiC, WC, C, Ni, Mo, and C powder according to the experimental formula, and add the dispersed nano TiN powder slurry to the wet medium and mix evenly . Pour the uniformly mixed powder into a nylon ball mill jar, then put in a WC-C cemented carbide ball (YG8) with a diameter of 10mm, and then add an appropriate amount of absolute ethanol, and use a QM-IF planetary ball mill. The mixed powder was ball milled. After 24 hours of mixing, the mixed powder was dried in an ...

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Abstract

The invention discloses a preparation process for a nanometer modified Ti(C&N)-based metal ceramic cutting tool. According to the technical scheme, a nanometer modified Ti(C&N)-based metal ceramic material is prepared by an optimized dispersion process and optimized nanometer addition, and the cutting tool is prepared by a liquid sintering method. A nanometer TiN modified TiC-based metal ceramic cutting tool consists of the following basic components: 54 percent of TiC, 10 percent of TiN(nm), 15 percent of Mo, 20 percent of Ni and 1 percent of C. The preparation process has the characteristics that TiC, TiN and WC form a hard phase of the metal ceramic cutting tool, and Ni forms a main adhesive phase; Co has higher toughness and hardness than Ni, and is well wetted with the hard phase, so that alloy porosity is reduced; by Mo, the wettability of liquid metal for the hard phase can be remarkably improved.

Description

technical field [0001] The invention discloses a preparation process of a nano-modified Ti(C&N)-based cermet cutter. Background technique [0002] The quality of the tool material is the basic factor affecting the quality of the machined surface, cutting efficiency and tool life. The emergence of new tool materials can often double the productivity and solve the processing of some difficult-to-machine materials. At the same time, with the continuous development of cutting technology, people have put forward higher and higher requirements for the performance of cutting tool materials. Although Ti(C&N)-based cermet tools have high hardness, wear resistance, high temperature softening resistance and oxidation resistance, they also have problems such as plastic deformation resistance, poor chipping resistance and toughness. [0003] In order to overcome the above problems, the present invention designs the preparation process of nano-modified Ti(C&N)-based cermet cutters, and ...

Claims

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Application Information

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IPC IPC(8): B22F5/00B22F3/16C22C29/02
Inventor 马文超
Owner QINGDAO PINGDU JIUDIAN GOLD MINE
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