Alloy for precision machining lathe tool and preparation method thereof

A technology of precision machining and lathe, applied in the field of alloys, it can solve the problem that alloys cannot be taken into account, and achieve the effects of no macrosegregation, good tensile strength and hardness, and good mechanical properties.

Active Publication Date: 2018-06-01
舒城久联精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alloys in the prior art cannot take into account the above technical indicators

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the embodiment of the present invention, an alloy for precision machining lathe tool is composed of the following raw materials according to mass percentage: Mo12%, Nb8.6%, Zr10%, Hf5.6%, Ta2.8%, Si0.1% , Fe0.9%, the balance is Ti.

[0026] When preparing, include the following steps:

[0027] 1) Batching: batching is carried out according to the raw material composition and mass percentage ratio of the alloy used for precision machining lathe turning tools;

[0028] 2) Melting: Put the raw materials into a muffle furnace for melting, and control the temperature at 1250°C for 3 hours to obtain a molten alloy;

[0029] 3) Atomization: use argon as the injection medium to crush the molten alloy, and solidify into alloy powder in the cooling medium;

[0030] 4) Pressing: use ultra-high hydraulic tube expander to press the alloy powder, and the pressure parameter is 150MPa;

[0031] 5) Sintering: add a binder into the pressed alloy, put it into a muffle furnace for si...

Embodiment 2

[0033] In the embodiment of the present invention, an alloy for precision machining lathe tool is composed of the following raw materials according to mass percentage: Mo18%, Nb14.7%, Zr17%, Hf7.2%, Ta4.9%, Si0.5% , Fe2.1%, the balance is Ti.

[0034] When preparing, include the following steps:

[0035] 1) Batching: batching is carried out according to the raw material composition and mass percentage ratio of the alloy used for precision machining lathe turning tools;

[0036] 2) Melting: Put the raw materials into a muffle furnace for melting, and control the temperature at 1250°C for 3 hours to obtain a molten alloy;

[0037] 3) Atomization: use argon as the injection medium to crush the molten alloy, and solidify into alloy powder in the cooling medium;

[0038] 4) Pressing: use ultra-high hydraulic tube expander to press the alloy powder, and the pressure parameter is 150MPa;

[0039] 5) Sintering: add a binder into the pressed alloy, put it into a muffle furnace for s...

Embodiment 3

[0041] In the embodiment of the present invention, an alloy for precision machining lathe tool is composed of the following raw materials according to mass percentage: Mo15%, Nb12.3%, Zr13%, Hf6.4%, Ta3.8%, Si0.29% , Fe1.6%, the balance is Ti.

[0042] When preparing, include the following steps:

[0043] 1) Batching: batching is carried out according to the raw material composition and mass percentage ratio of the alloy used for precision machining lathe turning tools;

[0044] 2) Melting: Put the raw materials into a muffle furnace for melting, and control the temperature at 1250°C for 3 hours to obtain a molten alloy;

[0045] 3) Atomization: use argon as the injection medium to crush the molten alloy, and solidify into alloy powder in the cooling medium;

[0046] 4) Pressing: use ultra-high hydraulic tube expander to press the alloy powder, and the pressure parameter is 150MPa;

[0047] 5) Sintering: add a binder into the pressed alloy, put it into a muffle furnace for ...

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Abstract

The invention discloses an alloy for a turning tool of a precision machining lathe and a preparation method thereof. The alloy for the turning tool of the precision machining lathe comprises the following raw materials in mass percent: 12% to 18% of Mo, 8.6% to 14.7% of Nb, 10% to 17% of Zr, 5.6% to 7.2% of Hf, 2.8% to 4.9% of Ta, 0.1% to 0.5% of Si and 0.9% to 2.1% of Fe, and the balance being Ti. The preparation method comprises the steps of after batching, putting the raw materials into a muffle furnace to be smelted for 3 h with the temperature controlled to be 1250 DEG C, so as to obtain a molten alloy; then, carrying out atomization treatment, adopting argon as an injection medium to crush the molten alloy, and solidifying the crushed molten alloy into alloy powder in a cooling medium; carrying out compression moulding on the alloy powder through an ultrahigh hydraulic pipe expander, wherein the pressure parameter is 100 MPa to 200 MPa; and finally, adding a binder into the pressed alloy, and putting the alloy into the muffle furnace to be sintered for 2 h to 4 h at the temperature of 1000 DEG C to 1200 DEG C. The alloy for the turning tool of the precision machining lathe has good mechanical property, particularly has relatively good tensile strength and hardness, and further has good thermal intensity, corrosion resistance and heat-conducting property.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to an alloy for precision machining lathe tools and a preparation method thereof. Background technique [0002] CNC lathe is a precision machining lathe. It is a high-precision, high-efficiency automatic machine tool. It is equipped with a multi-station turret or a power turret. The machine tool has a wide range of processing performance, and can process straight cylinders, oblique cylinders and Various complex workpieces such as threads and grooves have various compensation functions such as linear interpolation and circular interpolation, and have played a good economic effect in the mass production of complex parts. [0003] The precision machining lathe mainly uses the turning tool to turn the rotating workpiece. The turning tool directly contacts the workpiece during cutting, bears a large cutting pressure and impact, and is subjected to severe friction of the workpiece, resulti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C30/00C22C1/04
CPCC22C1/045C22C1/0458C22C14/00C22C30/00
Inventor 蒋能新
Owner 舒城久联精密机械有限公司
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