CN106567023A - A heavy-deformation grain refinement method for a titanium alloy ring blank - Google Patents

A heavy-deformation grain refinement method for a titanium alloy ring blank Download PDF

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Publication number
CN106567023A
CN106567023A CN201610789596.7A CN201610789596A CN106567023A CN 106567023 A CN106567023 A CN 106567023A CN 201610789596 A CN201610789596 A CN 201610789596A CN 106567023 A CN106567023 A CN 106567023A
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CN
China
Prior art keywords
melts
titanium alloy
hot
ring billet
grain
Prior art date
Application number
CN201610789596.7A
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Chinese (zh)
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CN106567023B (en
Inventor
陈翠
刘其源
刘智
许亮
王骏
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无锡派克新材料科技股份有限公司
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Priority to CN201610789596.7A priority Critical patent/CN106567023B/en
Publication of CN106567023A publication Critical patent/CN106567023A/en
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Publication of CN106567023B publication Critical patent/CN106567023B/en

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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18High-melting or refractory metals or alloys based thereon
    • C22F1/183High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon

Abstract

The invention relates to a heavy-deformation grain refinement method for a titanium alloy ring blank. A heavy deformation manner including ring shrinking, mandrel lengthening, axial upsetting, frame broaching and end face flattening is adopted to allow coarse and large crystal grains to be refined during repeated upsetting and heavy deformation, thus eliminating or improving a problem that titanium alloy crystals are coarse.

Description

A kind of titanium alloy ring billet weight grain refinement and grain deformation method

Technical field

The present invention relates to deformation method for grain refinement, especially a kind of titanium alloy ring billet weight grain refinement and grain deformation method.

Background technology

Titanium alloy causes forging in process of production due to the interference of the various extraneous factors such as personnel, equipment, environment Cheng Zhong, it is easy to crystalline substance occur slightly, it is general to only have selection to scrap especially when finding brilliant thick after base punching terminates, waste time and energy, And cause material waste.

The content of the invention

The applicant is directed to disadvantage mentioned above, has carried out Improvement, there is provided a kind of titanium alloy ring billet weight grain refinement and grain deformation Method.

The technical solution adopted in the present invention is as follows:

A kind of titanium alloy ring billet weight grain refinement and grain deformation method, comprises the following steps:

(1) heat:After the titanium alloy ring billet of coarse-grain is heated to into 950~970 DEG C, 60min~90min is incubated;

(2) contracting ring:The titanium alloy ring billet of coarse-grain is put in upper and lower V-shape anvil, contracting ring is carried out, reduces internal-and external diameter, wall thickness Increase, it is highly constant;

(3) hot material melts down:Hot material melts down heating 40min~60min;

(4) fullering with the core bar:The ring billet that 2nd step is obtained is carried out into fullering with the core bar, reduces external diameter, internal diameter is constant, height increases Greatly;

(5) hot material melts down:Hot material melts down heating 30min~50min;

(6) jumping-up:The ring billet that 4th step is obtained is carried out into jumping-up, ring billet height when jumping-up height to the 1st step is heated;

(7) hot material melts down:Hot material melts down heating 40min~60min;

(8) saddle support reaming:The ring billet that 6th step is obtained is carried out into saddle support reaming, the internal-and external diameter for making ring billet increases, and wall thickness subtracts It is thin, it is highly constant;

(9) cool down:Room temperature is air cooled to, grain size, competent collection product, unqualified repeat step (1)~(9) are checked.

Beneficial effects of the present invention are as follows:The titanium alloy ring billet weight grain refinement and grain deformation method, using contracting ring, mandrel is pulled out Long, axial jumping-up, saddle support reaming, the heavy deformation method of planar end surface makes coarse grain repeat jumping-up, and crystal grain is obtained in large deformation Refinement, eliminates or improves the brilliant thick problem of titanium alloy.

Description of the drawings

The process chart that Fig. 1 is provided for the present invention.

Specific embodiment

Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is illustrated.

The titanium alloy ring billet weight grain refinement and grain deformation method, comprises the following steps:

(1) heat:After the titanium alloy ring billet of coarse-grain is heated to into 950~970 DEG C, 60min~90min is incubated;

(2) contracting ring:The titanium alloy ring billet of coarse-grain is put in upper and lower V-shape anvil, contracting ring is carried out, reduces internal-and external diameter, wall thickness Increase, it is highly constant;

(3) hot material melts down:Hot material melts down heating 40min~60min;

(4) fullering with the core bar:The ring billet that 2nd step is obtained is carried out into fullering with the core bar, reduces external diameter, internal diameter is constant, height increases Greatly;

(5) hot material melts down:Hot material melts down heating 30min~50min;

(6) jumping-up:The ring billet that 4th step is obtained is carried out into jumping-up, ring billet height when jumping-up height to the 1st step is heated;

(7) hot material melts down:Hot material melts down heating 40min~60min;

(8) saddle support reaming:The ring billet that 6th step is obtained is carried out into saddle support reaming, the internal-and external diameter for making ring billet increases, and wall thickness subtracts It is thin, it is highly constant;

(9) cool down:Room temperature is air cooled to, grain size, competent collection product, unqualified repeat step (1)~(9) are checked.

Make coarse grain repeat jumping-up, crystal grain refinement is obtained in large deformation, eliminate or improve the brilliant thick problem of titanium alloy.

Above description is explanation of the invention, is not the restriction to inventing, and limited range of the present invention is referring to right Require, in the case of the basic structure without prejudice to the present invention, the present invention can make any type of modification.

Claims (1)

1. a kind of titanium alloy ring billet deformation deformation method for grain refinement again, comprises the following steps:
(1) heat:After the titanium alloy ring billet of coarse-grain is heated to into 950~970 DEG C, 60min~90min is incubated;
(2) contracting ring:The titanium alloy ring billet of coarse-grain is put in upper and lower V-shape anvil, contracting ring is carried out, reduces internal-and external diameter, wall thickness increase, It is highly constant;
(3) hot material melts down:Hot material melts down heating 40min~60min;
(4) fullering with the core bar:The ring billet that 2nd step is obtained is carried out into fullering with the core bar, reduces external diameter, internal diameter is constant, height increases;
(5) hot material melts down:Hot material melts down heating 30min~50min;
(6) jumping-up:The ring billet that 4th step is obtained is carried out into jumping-up, ring billet height when jumping-up height to the 1st step is heated;
(7) hot material melts down:Hot material melts down heating 40min~60min;
(8) saddle support reaming:The ring billet that 6th step is obtained is carried out into saddle support reaming, the internal-and external diameter for making ring billet increases, wall thickness reduction, it is high Degree is constant;
(9) cool down:Room temperature is air cooled to, grain size, competent collection product, unqualified repeat step (1)~(9) are checked.
CN201610789596.7A 2016-08-31 2016-08-31 A kind of titanium alloy ring billet weight grain refinement and grain deformation method CN106567023B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610789596.7A CN106567023B (en) 2016-08-31 2016-08-31 A kind of titanium alloy ring billet weight grain refinement and grain deformation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610789596.7A CN106567023B (en) 2016-08-31 2016-08-31 A kind of titanium alloy ring billet weight grain refinement and grain deformation method

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CN106567023A true CN106567023A (en) 2017-04-19
CN106567023B CN106567023B (en) 2018-01-30

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328530A (en) * 1993-06-07 1994-07-12 The United States Of America As Represented By The Secretary Of The Air Force Hot forging of coarse grain alloys
CN104384826A (en) * 2014-08-18 2015-03-04 贵州航宇科技发展股份有限公司 Forging method of GH4169 alloy inner cartridge receiver special-shaped ring part
CN104959501A (en) * 2015-07-30 2015-10-07 西北有色金属研究院 Method for machining TC4 thin-wall titanium alloy ring piece

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328530A (en) * 1993-06-07 1994-07-12 The United States Of America As Represented By The Secretary Of The Air Force Hot forging of coarse grain alloys
CN104384826A (en) * 2014-08-18 2015-03-04 贵州航宇科技发展股份有限公司 Forging method of GH4169 alloy inner cartridge receiver special-shaped ring part
CN104959501A (en) * 2015-07-30 2015-10-07 西北有色金属研究院 Method for machining TC4 thin-wall titanium alloy ring piece

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