CN103831380A - Die forging forming technology for GH4169 alloy forge piece - Google Patents
Die forging forming technology for GH4169 alloy forge piece Download PDFInfo
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- CN103831380A CN103831380A CN201310679219.4A CN201310679219A CN103831380A CN 103831380 A CN103831380 A CN 103831380A CN 201310679219 A CN201310679219 A CN 201310679219A CN 103831380 A CN103831380 A CN 103831380A
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Abstract
The invention provides a die forging forming technology for a GH4169 alloy forge piece to solve the problems that when a hydraulic machine or a counter-blow hammer is utilized for carrying out die forging on the GH4169 alloy forge piece in the prior art, the forge piece is poor in stability and uneven in tissue, and large-depth mixed crystals exist on the surface of the forge piece. The die forging forming technology comprises the first step of feeding bar stock, the step of heating the bar stock to manufacture a blank, the step of carrying out heating and thermal insulation on the manufactured blank before forging, the step of carrying out die forging forming on the blank on which heating and thermal insulation are carried out before forging, and the step of carrying out heat treatment on the die forging formed forge piece. The die forging forming technology is characterized in that a high-power screw press is utilized for carrying out die forging forming on the blank heated before forging.
Description
Technical field
The present invention relates to the die forging process field of GH4169 alloy forged piece, especially relate to the die forging manufacture field of Aeronautics and Astronautics engine GH4169 alloy forged piece, be specially a kind of die forging process of GH4169 alloy forged piece.
Background technology
GH4169 alloy is widely used in aerospace field, is mainly used in engine diskware, axial workpiece, blade and casing, and application weight accounts for 50% left and right of high temperature alloy.Because GH4169 alloying level is high, forging moulding drag is large, and forging tissue and performance requirement are high, and forging times requires the least possible, and the forging equipment of required use requires large as far as possible.The die forging production equipment of GH4169 alloy diskware mainly adopts hydraulic press and counter-blow hammer at present, the poor stability of forging in the GH4169 alloy forged piece process of employing hydraulic press or counter-blow hammer die forging processing, and Duan Hou forging tissue odds is even, the larger degree of depth mixed crystal of the surperficial existence of forging.
Summary of the invention
The invention provides a kind of die forging process of GH4169 alloy forged piece, when it can solve existing employing hydraulic press or counter-blow hammer and carries out the die forging of GH4169 alloy forged piece there is the problem of larger degree of depth mixed crystal in forging poor stability, the even surface of tissue odds.
Its technical scheme is such, it comprises following processing step, first bar blanking, then by base after bar heating, again the blank making is forged to front heating insulation, forge before heat and be incubated after described blank is carried out to die-forging forming, finally the forging after described die-forging forming is heat-treated, it is characterized in that: before it adopts high power screw press to described forging heat after blank carry out die-forging forming.
It is further characterized in that:
Before the forging of described blank, add the mode of thermal recovery staged heat temperature raising, it first carries out middle temperature to blank and heats and be incubated, and then enters high temperature insulation;
Described middle temperature heating-up temperature is 850 ℃～990 ℃, and middle temperature heat insulating coefficient is (0.8～1.2) min/mm;
Described high-temperature heating temperature is 950 ℃～1060 ℃, and soak coefficient is (0.6～1.0) min/mm;
After described blank heats before forging and is incubated, transfer to described high power screw press and carry out die forging in heating furnace, blank rotary shift time was controlled in 80 seconds;
When described die-forging forming, the hammer number of described high power screw press is controlled at≤and 10 times;
Described die-forging forming requires to complete in 1～2 fire is inferior.
Carry out the die forging process of GH4169 alloy forged piece compares with existing employing hydraulic press or counter-blow hammer, beneficial effect of the present invention is: it adopts high power screw press to carry out die-forging forming, its utilize the controlled precision strike of high power screw press stroke, the many blow energies of flywheel energy storage large, can realize repeatedly the features such as strikes continuously, can obtain comparatively uniform structural state and mechanical property; Simultaneously, it is by carrying out the control of the blank rotary shift time between die forging in blank being forged to control of front heating and thermal insulation and being guaranteed from heating furnace to high power screw press, guarantee that blank has higher initial forging temperature, and effectively avoid final forging temperature too low and often hit the inclined to one side problem of forging core temperature rise by controlling hammer number, thereby further guarantee the reliable moulding of forging.
The specific embodiment
Embodiment mono-:
Process a kind of GH4169 alloy forged piece, it comprises following processing step: first bar blanking end face rounding; Then pier roughing after bar heating is made to blank, then the protective agent that is SA-35 at the blank surface spraying trade mark; Then blank is forged to front heating insulation, first in temperature heating, middle temperature heating-up temperature is 920 ℃, middle temperature heat insulating coefficient is 1.0min/mm, then blank is again with stove high-temperature heating, high-temperature heating temperature is 1005 ℃, soak coefficient is 0.8min/mm; Blank goes out heating furnace and is transferred on high power screw press, to carry out die-forging forming, blank rotary shift time should be within 80 seconds, hammer number≤10 time of die-forging forming, die-forging forming requires to complete in 2 fire time, finally the forging after die-forging forming is carried out solution treatment, carries out Ageing Treatment again.
Embodiment bis-:
Process a kind of GH4169 forging, it comprises following processing step: first bar blanking end face rounding; Then pier roughing after bar heating is made to blank, then the protective agent that is SA-35 at the blank surface spraying trade mark; Then blank is forged to front heating insulation, first in temperature heating, middle temperature heating-up temperature is 850 ℃, middle temperature heat insulating coefficient is 0.8 min/mm, then blank is again with stove high-temperature heating, high-temperature heating temperature is 950 ℃, soak coefficient is 1.0 min/mm; Blank goes out heating furnace and is transferred on high power screw press, to carry out die-forging forming, blank rotary shift time should be within 80 seconds, hammer number≤10 time of die-forging forming, die-forging forming requires to complete in 1 fire is inferior, finally the forging after die-forging forming is carried out to Ageing Treatment.
Embodiment tri-:
Process a kind of GH4169 forging, it comprises following processing step: first bar blanking end face rounding; Then pier roughing after bar heating is made to blank, then the protective agent that is SA-35 at the blank surface spraying trade mark; Then blank is forged to front heating insulation, first in temperature heating, middle temperature heating-up temperature is 990 ℃, middle temperature heat insulating coefficient is 1.2min/mm, then blank is again with stove high-temperature heating, high-temperature heating temperature is 1060 ℃, soak coefficient is 0.6 min/mm; Blank goes out heating furnace and is transferred on high power screw press, to carry out die-forging forming, blank rotary shift time should be within 80 seconds, hammer number≤10 time of die-forging forming, die-forging forming requires to complete in 2 fire time, finally the forging after die-forging forming is carried out solution treatment, carries out Ageing Treatment again.
Claims (7)
1. the die forging process of a GH4169 alloy forged piece, it comprises following processing step, first bar blanking, then by base after bar heating, again the blank making is forged to front heating insulation, forge before heat and be incubated after described blank is carried out to die-forging forming, finally the forging after described die-forging forming is heat-treated, it is characterized in that: before it adopts high power screw press to described forging heat after blank carry out die-forging forming.
2. the die forging process of a kind of GH4169 alloy forged piece according to claim 1, it is characterized in that: the mode that adds thermal recovery staged heat temperature raising before the forging of described blank, it first carries out middle temperature to blank and heats and be incubated, and then enters high temperature insulation.
3. the die forging process of a kind of GH4169 alloy forged piece according to claim 2, is characterized in that: described middle temperature heating-up temperature is 850 ℃～990 ℃, and middle temperature heat insulating coefficient is (0.8～1.2) min/mm.
4. the die forging process of a kind of GH4169 alloy forged piece according to claim 3, is characterized in that: described high-temperature heating temperature is 950 ℃～1060 ℃, and soak coefficient is (0.6～1.0) min/mm.
5. the die forging process of a kind of GH4169 alloy forged piece according to claim 4, it is characterized in that: after described blank heats before forging and is incubated, in heating furnace, transfer to described high power screw press and carry out die forging, blank rotary shift time was controlled in 80 seconds.
6. the die forging process of a kind of GH4169 alloy forged piece according to claim 6, is characterized in that: when described die-forging forming, the hammer number of described high power screw press is controlled at≤and 10 times.
7. the die forging process of a kind of GH4169 alloy forged piece according to claim 6, is characterized in that: described die-forging forming requires to complete in 1～2 fire is inferior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310679219.4A CN103831380A (en) | 2013-12-15 | 2013-12-15 | Die forging forming technology for GH4169 alloy forge piece |
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| CN201310679219.4A CN103831380A (en) | 2013-12-15 | 2013-12-15 | Die forging forming technology for GH4169 alloy forge piece |
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| CN103831380A true CN103831380A (en) | 2014-06-04 |
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| CN201310679219.4A Pending CN103831380A (en) | 2013-12-15 | 2013-12-15 | Die forging forming technology for GH4169 alloy forge piece |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694788A (en) * | 2016-12-01 | 2017-05-24 | 贵州安大航空锻造有限责任公司 | GH4169 alloy hollow shaft neck forged piece nearly-isothermal forging forming method |
| CN106756683A (en) * | 2016-12-02 | 2017-05-31 | 西北工业大学 | Heating means before a kind of deformation of GH4169 alloys |
| CN107175306A (en) * | 2017-07-18 | 2017-09-19 | 中国第二重型机械集团德阳万航模锻有限责任公司 | The large-scale forging part forging method of fine grain AF1410 steel |
| CN108160887A (en) * | 2016-12-07 | 2018-06-15 | 陕西宏远航空锻造有限责任公司 | A kind of forming method of large size GH4169 alloy annular forging |
| CN109622866A (en) * | 2018-12-11 | 2019-04-16 | 陕西宏远航空锻造有限责任公司 | The manufacturing process of large-scale GH4169 alloy forged piece |
| CN110548827A (en) * | 2018-05-31 | 2019-12-10 | 宝钢特钢有限公司 | forging method for improving yield of nickel-based corrosion-resistant alloy forging stock |
| CN112620573A (en) * | 2020-11-30 | 2021-04-09 | 陕西宏远航空锻造有限责任公司 | Forging method for improving structural uniformity of high-temperature alloy forging |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694788A (en) * | 2016-12-01 | 2017-05-24 | 贵州安大航空锻造有限责任公司 | GH4169 alloy hollow shaft neck forged piece nearly-isothermal forging forming method |
| CN106756683A (en) * | 2016-12-02 | 2017-05-31 | 西北工业大学 | Heating means before a kind of deformation of GH4169 alloys |
| CN106756683B (en) * | 2016-12-02 | 2018-08-14 | 西北工业大学 | Heating means before a kind of deformation of GH4169 alloys |
| CN108160887A (en) * | 2016-12-07 | 2018-06-15 | 陕西宏远航空锻造有限责任公司 | A kind of forming method of large size GH4169 alloy annular forging |
| CN107175306A (en) * | 2017-07-18 | 2017-09-19 | 中国第二重型机械集团德阳万航模锻有限责任公司 | The large-scale forging part forging method of fine grain AF1410 steel |
| CN110548827A (en) * | 2018-05-31 | 2019-12-10 | 宝钢特钢有限公司 | forging method for improving yield of nickel-based corrosion-resistant alloy forging stock |
| CN110548827B (en) * | 2018-05-31 | 2021-11-12 | 宝武特种冶金有限公司 | Forging method for improving yield of nickel-based corrosion-resistant alloy forging stock |
| CN109622866A (en) * | 2018-12-11 | 2019-04-16 | 陕西宏远航空锻造有限责任公司 | The manufacturing process of large-scale GH4169 alloy forged piece |
| CN112620573A (en) * | 2020-11-30 | 2021-04-09 | 陕西宏远航空锻造有限责任公司 | Forging method for improving structural uniformity of high-temperature alloy forging |
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Application publication date: 20140604 |