Easy-to-cut titanium alloy

A cutting and titanium alloy technology, which is applied in the field of titanium alloy in the field of metal material technology, can solve the problems of large tool tip stress, high cutting temperature, and small deformation coefficient of titanium alloy, so as to improve plasticity and structure stability, and improve cutting efficiency. Processability, effect of improving metal properties

Inactive Publication Date: 2017-05-10
ANHUI YINLONG PUMP VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the microstructure characteristics after annealing, titanium alloys can be divided into three categories: α, (α+β) and β-type titanium alloys. Among them, α-type titanium alloys have a stable structure, higher wear resistance than pure titanium, and strong oxidation resistance. α +β-type titanium alloy has good structural stability, good toughness, plasticity and high-temperature deformation properties. β-type titanium alloy can be strengthened by heat treatment, and has good welding performance and pressure processing performance. The sharp stress is large and the work hardening is serious, which causes the tool to be easily worn and chipped during cutting, which makes it difficult to guarantee the cutting quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A titanium alloy that is easy to cut and process described in this embodiment, the weight percentage content of each component is: 78.5% of first-grade sponge titanium, 4.5% of chromium, 2% of manganese, 6.7% of aluminum, 0.8% of silicon, 5.5% of magnesium, Lead 2%.

[0020] A kind of preparation method of the titanium alloy that is easy to machining described in this embodiment, comprises the following steps:

[0021] (1) Weigh 78.5% of titanium, 4.5% of chromium, 2% of manganese, 6.7% of aluminum, 0.8% of silicon, 5.5% of magnesium, and 2% of lead by mass percentage, and then mix them to form a mixed raw material;

[0022] (2) Press the mixed raw materials into an electrode plate, and then place it in a consumable electrode melting furnace. An electric arc is formed between the bottom of the consumable electrode and the bottom of the crucible in the furnace, and then a molten metal pool is rapidly generated, and the electrode plate is in the wherein smelting is carri...

Embodiment 2

[0035] This embodiment adopts the preferred technical solution. The titanium alloy that is easy to cut has the weight percentage content of each component: 76.8% of first-grade sponge titanium, 4.8% of chromium, 2.6% of manganese, 7.1% of aluminum, and 0.9% of silicon %, magnesium 5.7%, lead 1.8%.

[0036] A kind of preparation method of the titanium alloy that is easy to machining described in this embodiment, comprises the following steps:

[0037] (1) Weigh 76.8% of titanium, 4.8% of chromium, 2.6% of manganese, 7.1% of aluminum, 0.9% of silicon, 5.7% of magnesium, and 1.8% of lead by mass percentage, and then mix them to form a mixed raw material;

[0038] (2) Press the mixed raw materials into an electrode plate, and then place it in a consumable electrode melting furnace. An electric arc is formed between the bottom of the consumable electrode and the bottom of the crucible in the furnace, and then a molten metal pool is rapidly generated, and the electrode plate is in t...

Embodiment 3

[0051] A titanium alloy that is easy to cut and process described in this embodiment, the weight percentage content of each component is: 85.5% of first-grade sponge titanium, 3% of chromium, 1% of manganese, 5.1% of aluminum, 0.4% of silicon, 3.7% of magnesium, Lead 1.3%.

[0052] A kind of preparation method of the titanium alloy that is easy to machining described in this embodiment, comprises the following steps:

[0053](1) Weigh 85.5% of titanium, 3% of chromium, 1% of manganese, 5.1% of aluminum, 0.4% of silicon, 3.7% of magnesium, and 1.3% of lead by mass percentage, and then mix them to form a mixed raw material;

[0054] (2) Press the mixed raw materials into an electrode plate, and then place it in a consumable electrode melting furnace. An electric arc is formed between the bottom of the consumable electrode and the bottom of the crucible in the furnace, and then a molten metal pool is rapidly generated, and the electrode plate is in the wherein smelting is carrie...

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Abstract

The invention discloses easy-to-cut titanium alloy, which comprises the following components in percentage by weight: 3 percent to 6.1 percent of chromium, 1 percent to 4 percent of manganese, 5.1 percent to 8 percent of aluminum, 0.4 percent to 1.3 percent of silicon, 3.7 percent to 7 percent of magnesium, 1.3 percent to 2.7 percent of lead, and the balance titanium. According to the easy-to-cut titanium alloy provided by the invention, the manganese, the aluminum, a small amount of lead and other metals are added, a vacuum consumable-electrode arc melting technology is adopted for melting for three times repeatedly, and degassing, deoxidizing and impurity removing processes are better realized for the metal materials, so that a pure metal material billet is acquired; due to high melting rate and the accurate control of an electric arc heating area, the consistency of a melting metal solidification direction is ensured, a metal performance of the material is greatly improved, and the titanium alloy can be easily cut; and later, double annealing is carried out, so that recrystallization is fully carried out without increasing crystal particles in the titanium alloy, the plasticity and the structure stability of the titanium alloy are improved, the machinability of the titanium alloy is improved, and meanwhile, the high strength and the stability of the titanium alloy are further maintained.

Description

technical field [0001] The invention relates to a titanium alloy in the technical field of metal materials, in particular to a titanium alloy which is easy to cut. Background technique [0002] As a metal material, although titanium appeared later than copper, iron, and aluminum, it has excellent comprehensive properties such as low density, high strength, high temperature resistance, corrosion resistance, non-magnetism, and good biocompatibility. It is widely used in various fields. [0003] According to the microstructure characteristics after annealing, titanium alloys can be divided into three categories: α, (α+β) and β-type titanium alloys. Among them, α-type titanium alloys have a stable structure, higher wear resistance than pure titanium, and strong oxidation resistance. α +β-type titanium alloy has good structural stability, good toughness, plasticity and high-temperature deformation properties. β-type titanium alloy can be strengthened by heat treatment, and has g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/02C22F1/18C22B9/20
CPCC22C14/00C22B9/20C22C1/02C22F1/183
Inventor 吴辉孟金华王清龙徐俊东王文汇唐宗清
Owner ANHUI YINLONG PUMP VALVE
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