CN112296245B - Forging method for improving creep property of Wasp ring forging - Google Patents
Forging method for improving creep property of Wasp ring forging Download PDFInfo
- Publication number
- CN112296245B CN112296245B CN202010979541.9A CN202010979541A CN112296245B CN 112296245 B CN112296245 B CN 112296245B CN 202010979541 A CN202010979541 A CN 202010979541A CN 112296245 B CN112296245 B CN 112296245B
- Authority
- CN
- China
- Prior art keywords
- ring
- forging
- rolling
- ring forging
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Abstract
The invention provides a forging method for improving creep property of Wasp ring forgings, which avoids cracking phenomenon through a series of steps of blanking, punching, high-temperature ring forging rolling, relatively low-temperature ring forging rolling and rounding and shaping, and the control of temperature and rolling deformation in each step, does not need polishing in the forging process, and improves production efficiency; and the crystal grains of the ring forging are controlled within ASTM #4.5-7, the 0.2 percent creep time is more than 150h, the ring forging can obtain a uniform microstructure more easily, the cracking phenomenon is further avoided, the requirement of high performance of the product is ensured, and the production cost is further reduced.
Description
Technical Field
The invention relates to the field of processing of ring forgings, in particular to a forging method for improving creep property of Wasp ring forgings.
Background
At present, in order to obtain fine grains, the Wasp ring forging is usually at a lower forging temperature, and the grain size is closely related to creep property, so that the creep property is poor, and the Wasp ring forging cannot be applied to aeroengine parts with high performance requirements; in order to improve the fluidity and the structure uniformity of the metal, if a higher forging temperature is adopted, the forged piece is easy to crack, multiple fire ring rolling and polishing are needed, and the production cost is higher.
In addition, the strain energy can be improved due to excessive deformation in the forging process, and dynamic recrystallization is easy to generate double grains; an excessively small amount of deformation requires an increased number of forging shots, resulting in an increase in cost.
Disclosure of Invention
In order to solve the problems, the invention provides a forging method for improving the creep property of Wasp ring forgings.
The main content of the invention comprises:
a forging method for improving creep property of Wasp ring forgings comprises the following steps:
blanking: cutting according to the specification to obtain a blank;
punching: heating the blank to 1090-1110 ℃ by adopting a high-temperature gas furnace, and preserving heat for 1-3 hours; then taking out the blank from the high-temperature gas furnace and transporting the blank to a 3000T press, wherein the transfer time is less than 30s; upsetting and punching round holes on the blank for less than 180s to obtain a punched ring forging;
high-temperature ring forging rolling: heating the punched ring forging to 1040-1060 ℃ by using a high-temperature gas furnace, preserving heat for 0.5-3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling machine, wherein the transfer time is less than 30s; performing a plurality of fire times of straight ring rolling on the ring forging by adopting an R350 ring rolling mill, wherein the rolling amount per fire is 5-20%, and the time for straight ring rolling per fire is within 120 s;
and (3) ring forging and rolling at relatively low temperature: heating the ring forging after high-temperature ring forging rolling to 1000-1020 ℃ by using a high-temperature gas furnace, preserving heat for 0.5-3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill within 30s; performing a plurality of fire times of straight ring rolling on the ring forging by adopting an R350 ring rolling mill, wherein the rolling amount per fire is 5-20%, and the time for straight ring rolling per fire is within 120 s;
rounding and shaping: heating the ring forging rolled by the relatively low-temperature ring forging to 1000-1020 ℃ by using a high-temperature gas furnace, preserving heat for 0.5-1.5 hours, taking out the ring forging from the high-temperature gas furnace, transferring the ring forging to a 400T ring expanding machine for ring expanding and shaping, wherein the transfer time is within 30s, and the ring expanding and shaping time of the ring forging by using the 400T ring expanding machine is within 90 s.
Preferably, in the steps of rolling the high-temperature ring segment and rolling the relatively low-temperature ring forging, the ring rolling feed rate of the R350 ring rolling mill for performing straight ring rolling on the ring forging is 0.6-1.3mm/s.
Preferably, in the rounding step, when a 400T ring expanding machine is used for ring expanding and shaping the ring forging, the ring expanding amount is within 1%.
The invention has the beneficial effects that: the invention provides a forging method for improving creep property of Wasp ring forgings, which comprises the steps of punching at a relatively high temperature, and then carrying out high-temperature ring forging rolling at 1040-1060 ℃, wherein in the temperature range, metal flows fast, cracking is avoided, grinding is not needed in the forging process, and production efficiency is improved; meanwhile, the rolling deformation of each fire is controlled to be 5-20%, so that the crystal grains of the ring forging are controlled within ASTM #4.5-7, and the knitting time of 0.2% is more than 150h, the ring forging can obtain a uniform microstructure more easily, the cracking phenomenon is further avoided, the requirement on high performance of the product is met, and the production cost is further reduced.
Detailed Description
The technical solution protected by the present invention will be specifically explained below.
Example one
A forging method for improving creep property of Wasp ring forgings comprises the following steps:
blanking: cutting according to the specification to obtain a blank;
punching: heating the blank to 1090 ℃ by adopting a high-temperature gas furnace, and preserving heat for 3 hours; then taking out the blank from the high-temperature gas furnace and transporting the blank to a 3000T press, wherein the transfer time is less than 30s; upsetting the blank and punching a round hole, wherein the operation time is less than 180s, and obtaining a punched ring forging;
high-temperature ring forging rolling: heating the punched ring forging to 1040 ℃ by using a high-temperature gas furnace, preserving heat for 3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill for less than 30 seconds; performing a plurality of fire times of straight ring rolling on the ring forging by using an R350 ring rolling mill, wherein the rolling amount per fire is 20%, the fire times of the straight ring rolling are related to the size of the ring forging, and the time of the straight ring rolling per fire is within 120 s; the ring rolling feed rate is 1.3mm/s;
and (3) ring forging and rolling at relatively low temperature: heating the ring forging after high-temperature ring forging rolling to 1000 ℃ by using a high-temperature gas furnace, preserving heat for 3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill within 30s; performing straight ring rolling on the ring forging by using an R350 ring rolling mill for a plurality of times of fire, wherein the rolling quantity of each fire is 20%, the time for the straight ring rolling of each fire is within 120s, and the number of times of the straight ring rolling is related to the size of the ring forging; the ring rolling feed rate is 1.3mm/s;
rounding and shaping: heating the ring forging rolled by the relatively low-temperature ring forging to 1000 ℃ by using a high-temperature gas furnace, preserving heat for 1.5 hours, taking out the ring forging from the high-temperature gas furnace, transferring the ring forging to a 400T ring expanding machine for ring expanding and shaping, wherein the transferring time is within 30s, the ring expanding and shaping time of the ring forging by using the 400T ring expanding machine is within 90s, and the ring expanding amount is within 1%.
Example two
A forging method for improving creep property of Wasp ring forgings comprises the following steps:
blanking: cutting according to the specification to obtain a blank;
punching: heating the blank to 1110 ℃ by adopting a high-temperature gas furnace, and preserving heat for 1 hour; then taking out the blank from the high-temperature gas furnace and transporting the blank to a 3000T press, wherein the transfer time is less than 30s; upsetting the blank and punching a round hole, wherein the operation time is less than 180s, and obtaining a punched ring forging;
high-temperature ring forging rolling: heating the punched ring forging to 1060 ℃ by using a high-temperature gas furnace, preserving heat for 0.5 hour, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill for less than 30 seconds; performing straight ring rolling on the ring forging for a plurality of times by using an R350 ring rolling mill, wherein the rolling amount per time is 5%, and the time for straight ring rolling per time is within 120 s; the ring rolling feed rate is 0.6mm/s;
and (3) ring forging and rolling at relatively low temperature: heating the ring forging after high-temperature ring forging rolling to 1020 ℃ by using a high-temperature gas furnace, preserving heat for 0.5 hour, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling machine within 30s; performing straight ring rolling on the ring forging for a plurality of times by using an R350 ring rolling mill, wherein the rolling amount per fire is 5%, and the time for straight ring rolling per fire is within 120 s; the ring rolling feed rate is 0.6mm/s;
rounding and shaping: heating the ring forging subjected to ring forging rolling at a relatively low temperature to 1020 ℃ by using a high-temperature gas furnace, preserving heat for 0.5 hour, taking out the ring forging from the high-temperature gas furnace, transferring the ring forging to a 400T ring expanding machine for ring expanding and shaping, wherein the transfer time is within 30s, and the ring expanding and shaping time of the ring forging by using the 400T ring expanding machine is within 90 s; and the amount of ring expansion is within 1%.
EXAMPLE III
A forging method for improving creep property of Wasp ring forgings comprises the following steps:
blanking: cutting according to the specification to obtain a blank;
punching: heating the blank to 1100 ℃ by adopting a high-temperature gas furnace, and preserving heat for 2 hours; then taking out the blank from the high-temperature gas furnace and transporting the blank to a 3000T press, wherein the transfer time is less than 30s; upsetting the blank and punching a round hole, wherein the operation time is less than 180s, and obtaining a punched ring forging;
high-temperature ring forging rolling: heating the punched ring forging to 1050 ℃ by using a high-temperature gas furnace, preserving heat for 1.5 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill for less than 30s; performing straight ring rolling on the ring forging for a plurality of times by using an R350 ring rolling mill, wherein the rolling amount of each fire is 10 percent, and the time for the straight ring rolling of each fire is within 120 s; the ring rolling feed rate is 1mm/s
And (3) ring forging and rolling at relatively low temperature: heating the ring forging after high-temperature ring forging rolling to 1010 ℃ by using a high-temperature gas furnace, preserving heat for 1.5 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling machine within 30s; performing straight ring rolling on the ring forging for a plurality of times by using an R350 ring rolling mill, wherein the rolling amount of each fire is 10 percent, and the time for straight ring rolling of each fire is within 120 s; the ring rolling feed rate is 1mm/s
Rounding and shaping: heating the ring forging after the ring forging rolling at the relatively low temperature to 1010 ℃ by using a high-temperature gas furnace, preserving heat for 1 hour, taking out the ring forging from the high-temperature gas furnace, transferring the ring forging to a 400T ring expanding machine for ring expanding and shaping, wherein the transferring time is within 30s, the ring expanding and shaping time of the ring forging by using the 400T ring expanding machine is within 90s, and the ring expanding amount is within 1%.
Example four
A forging method for improving creep property of Wasp ring forgings comprises the following steps:
blanking: cutting according to the specification to obtain a blank;
punching: heating the blank to 1100 ℃ by adopting a high-temperature gas furnace, and preserving heat for 2.5 hours; then taking out the blank from the high-temperature gas furnace and transporting the blank to a 3000T press, wherein the transfer time is less than 30s; upsetting the blank and punching a round hole, wherein the operation time is less than 180s, and obtaining a punched ring forging;
high-temperature ring forging rolling: heating the punched ring forging to 1040 ℃ by using a high-temperature gas furnace, preserving heat for 3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill for less than 30s; performing straight ring rolling on the ring forging for a plurality of times by using an R350 ring rolling mill, wherein the rolling amount per fire is 15%, and the time for straight ring rolling per fire is within 120 s; the ring rolling feed rate is 1.3mm/s;
and (3) ring forging and rolling at relatively low temperature: heating the ring forging after high-temperature ring forging rolling to 1000 ℃ by using a high-temperature gas furnace, preserving heat for 2 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill within 30s; performing straight ring rolling on the ring forging for a plurality of times by using an R350 ring rolling mill, wherein the rolling amount per fire is 15%, and the time for straight ring rolling per fire is within 120 s; the ring rolling feed rate is 0.8mm/s;
rounding and shaping: heating the ring forging after the ring forging rolling at the relatively low temperature to 1020 ℃ by using a high-temperature gas furnace, preserving heat for 1 hour, taking out the ring forging from the high-temperature gas furnace, transferring the ring forging to a 400T ring expanding machine for ring expanding and shaping, wherein the transferring time is within 30s, the ring expanding and shaping time of the ring forging by using the 400T ring expanding machine is within 90s, and the ring expanding amount is within 1%.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. A forging method for improving creep property of Wasp ring forgings is characterized by comprising the following steps:
blanking: cutting according to the specification to obtain a blank;
punching: heating the blank to 1090-1110 ℃ by adopting a high-temperature gas furnace, and preserving heat for 1-3 hours; then taking out the blank from the high-temperature gas furnace and transporting the blank to a 3000T press, wherein the transfer time is less than 30s; upsetting and punching round holes on the blank for less than 180s to obtain a punched ring forging;
high-temperature ring forging rolling: heating the punched ring forging to 1040-1060 ℃ by using a high-temperature gas furnace, preserving heat for 0.5-3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling machine, wherein the transfer time is less than 30s; performing a plurality of fire times of straight ring rolling on the ring forging by adopting an R350 ring rolling mill, wherein the rolling amount per fire is 5-10%, and the time for straight ring rolling per fire is within 120 s;
and (3) relatively low-temperature ring forging rolling: heating the ring forging after high-temperature ring forging rolling to 1000-1020 ℃ by using a high-temperature gas furnace, preserving heat for 0.5-3 hours, taking out the ring forging from the high-temperature gas furnace, and transferring the ring forging to an R350 ring rolling mill within 30s; performing a plurality of fire times of straight ring rolling on the ring forging by adopting an R350 ring rolling mill, wherein the rolling amount per fire is 5-10%, and the time for straight ring rolling per fire is within 120 s;
rounding and shaping: heating the ring forging rolled by the relatively low-temperature ring forging to 1000-1020 ℃ by using a high-temperature gas furnace, preserving heat for 0.5-1.5 hours, taking out the ring forging from the high-temperature gas furnace, transferring the ring forging to a 400T ring expanding machine for ring expanding and shaping, wherein the transfer time is within 30s, and the ring expanding and shaping time of the ring forging by using the 400T ring expanding machine is within 90 s.
2. The forging method for improving the creep property of the Wasp ring forging according to claim 1, wherein in the steps of high-temperature ring forging rolling and relatively low-temperature ring forging rolling, the ring rolling feed rate of the R350 ring rolling mill for performing straight ring rolling on the ring forging is 0.6-1.3mm/s.
3. The forging method for improving the creep property of the Wasp ring forging according to claim 1, wherein in the rounding step, when a 400T ring expanding machine is used for expanding and shaping the ring forging, the ring expanding amount is within 1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979541.9A CN112296245B (en) | 2020-09-17 | 2020-09-17 | Forging method for improving creep property of Wasp ring forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979541.9A CN112296245B (en) | 2020-09-17 | 2020-09-17 | Forging method for improving creep property of Wasp ring forging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112296245A CN112296245A (en) | 2021-02-02 |
| CN112296245B true CN112296245B (en) | 2023-01-31 |
Family
ID=74483097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010979541.9A Active CN112296245B (en) | 2020-09-17 | 2020-09-17 | Forging method for improving creep property of Wasp ring forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112296245B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279349A (en) * | 2008-04-23 | 2008-10-08 | 贵州航宇科技发展有限公司 | Method for rolling and forming nickel-based high-temperature alloy conical ring |
| CN103350167B (en) * | 2013-06-30 | 2015-04-22 | 贵州安大航空锻造有限责任公司 | Roll forming method of 4340 H steel E-shaped ring forging |
| CN107138538B (en) * | 2017-06-16 | 2019-06-07 | 奥科宁克航空机件(苏州)有限公司 | A kind of forging method of fining high temperature alloy annular forging piece grain size |
| CN108672624B (en) * | 2018-05-03 | 2019-07-30 | 奥科宁克航空机件(苏州)有限公司 | A kind of nickel base superalloy ring forging method |
| CN111215567A (en) * | 2019-12-06 | 2020-06-02 | 陕西宏远航空锻造有限责任公司 | Forging method for improving grain size of GH4099 high-temperature alloy thin-wall ring |
| CN111069496B (en) * | 2019-12-30 | 2021-06-01 | 西北工业大学 | Preparation method of GH4738 alloy crystal homogenizing ring forging |
-
2020
- 2020-09-17 CN CN202010979541.9A patent/CN112296245B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112296245A (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108907049B (en) | Forging method for improving special TC4 titanium alloy structure performance | |
| CN109648025B (en) | Manufacturing process for optimizing cobalt-based deformation high-temperature alloy forged bar | |
| CN111069496B (en) | Preparation method of GH4738 alloy crystal homogenizing ring forging | |
| CN107138538A (en) | A kind of forging method of fining high temperature alloy annular forging piece grain size | |
| CN112589022B (en) | Method for manufacturing high-quality hard-to-deform high-temperature alloy low-segregation fine-grain bar | |
| CN105441845A (en) | Forging technology for abnormal structure of TC18 titanium alloy raw material | |
| CN105088118A (en) | Grain ultra-fining method for nickel-based superalloy board | |
| CN112846015B (en) | GH536 high-temperature alloy annular forging forming method | |
| CN108559934A (en) | A kind of cryogenic treatment process of TC6 titanium alloy forgings | |
| CN111926274B (en) | Manufacturing method for improving creep resistance of TI6242 titanium alloy | |
| CN112296245B (en) | Forging method for improving creep property of Wasp ring forging | |
| CN111451425B (en) | Forging method for controlling white point defect | |
| CN111136106B (en) | Method for producing fine-grained steel by directly rolling continuous casting billet without passing through heating furnace | |
| CN112122543B (en) | Forging method for refining crystal grains of In783 alloy thick-wall ring forging | |
| CN106834642B (en) | Optimized forging process of GH6783 alloy bar | |
| CN108380801B (en) | Manufacturing process of large pressure vessel tube plate forging | |
| CN114433758B (en) | Forging processing method of high-silver aluminum alloy | |
| CN114618970A (en) | Forging process for improving strength of thick-section TA15 titanium alloy forging | |
| CN114350969A (en) | Manufacturing method of stainless steel bar for liquid hydrogen storage device | |
| CN109967672B (en) | Forging method of CuAl10Fe5Ni5 copper alloy | |
| CN112210647B (en) | Process for improving impact value of A286 aviation forging | |
| CN115709254A (en) | Forging process of annular forging of R41 alloy | |
| CN107774712A (en) | A kind of production method of the big thickness low alloy steel plate of low cost | |
| CN112275978B (en) | Forging method of anti-cracking metal steel column | |
| CN111020429B (en) | Heat treatment method for large-thickness ultra-wide TA1 titanium plate of ingot finished material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |