CN112775373A - Forging method of disc part - Google Patents
Forging method of disc part Download PDFInfo
- Publication number
- CN112775373A CN112775373A CN202011521050.6A CN202011521050A CN112775373A CN 112775373 A CN112775373 A CN 112775373A CN 202011521050 A CN202011521050 A CN 202011521050A CN 112775373 A CN112775373 A CN 112775373A
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- CN
- China
- Prior art keywords
- forging
- disc
- groove
- protrusion
- piece
- 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.)
- Pending
Links
- 238000005242 forging Methods 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- 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 discloses a method for forging and pressing a disc piece. Firstly, placing a disc blank on a pre-forging die for pre-forging to prepare a pre-forging piece, and placing the pre-forging piece on a finish-forging die for secondary forging to form a disc piece. The pre-forging die is provided with a first groove for forming the prefabricated protrusion, and the final forging die is provided with a second groove for further forming the prefabricated protrusion to form the protrusion required by a manufacturer on the disc part. The disc part forging method disclosed by the scheme includes that the prefabricated protrusion with lower height and smaller inclination is manufactured through the pre-forging die, then the protrusion required by a factory is formed through the final forging die, and forging and pressing are performed at least twice, so that the disc part can be prevented from having the folding defect in the forming process, the disc part does not need to be repaired or even forged again, and the production efficiency of the disc part is greatly improved.
Description
Technical Field
The invention relates to the technical field of metal forging and pressing, in particular to a method for forging and pressing a disc piece.
Background
Some aviation disc parts have a raised structure on the surface, and the raised structure is formed by forging and pressing in one step in the prior art. Because the protruding height of the surface of the disc piece is higher and the inclination is larger, the folding defect is easily generated in the forging and pressing forming process.
The disc piece generates folding defects, the defects need to be ground by workers, and forging and pressing are carried out again, so that the production efficiency of the disc piece is greatly reduced.
Therefore, how to avoid the folding defect of the disc member during the forming process and improve the production efficiency of the disc member becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a method for forging a disc member, so as to avoid the folding defect of the disc member during the forming process and improve the production efficiency of the disc member.
In order to achieve the purpose, the invention provides the following technical scheme:
a method of forging a disc member, comprising the steps of:
1) placing the disc blank on a pre-forging die for forging and pressing for the first time to manufacture a pre-forging piece, wherein a first groove is formed in the pre-forging die and used for forming a prefabricated bulge, the position of the prefabricated bulge corresponds to the position of a bulge on a disc piece, the height of the prefabricated bulge is lower than the height of the disc piece, and the inclination of the prefabricated bulge is smaller than the inclination of the bulge of the disc piece;
2) and placing the pre-forged piece on a finish forging die for secondary forging, wherein a second groove is formed in the finish forging die, the prefabricated protrusion can be embedded into the second groove, and the second groove is used for positioning the prefabricated protrusion and simultaneously forming the protrusion.
Preferably, in the method for forging a disc member, the step 1) is repeated at least once, and the pre-forging die used in the next first forging is gradually deeper and gradually becomes more inclined than the first groove of the pre-forging die used in the previous first forging.
Preferably, in the above method of forging a disc member, the depth of the first groove is at most 1/2 times the depth of the second groove.
Preferably, in the above-described method of forging a disc member, a slope of the first groove is at most a slope 1/2 of the second groove.
Preferably, in the above method for forging a disc member, the disc blank is an aluminum alloy.
According to the technical scheme, the disc part forging method provided by the invention is used for forging the disc part in multiple times. Firstly, placing a disc blank on a pre-forging die for pre-forging to prepare a pre-forging piece, and placing the pre-forging piece on a finish-forging die for secondary forging to form a disc piece. The pre-forging die is provided with a first groove for forming the prefabricated protrusion, and the final forging die is provided with a second groove for further forming the prefabricated protrusion to form the protrusion required by a manufacturer on the disc part. The disc part forging method disclosed by the scheme includes that the prefabricated protrusion with lower height and smaller inclination is manufactured through the pre-forging die, then the protrusion required by a factory is formed through the final forging die, and forging and pressing are performed at least twice, so that the disc part can be prevented from having the folding defect in the forming process, the disc part does not need to be repaired or even forged again, and the production efficiency of the disc part is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for forging a disc member according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pre-forging provided by an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a disk member according to an embodiment of the present invention;
FIG. 4 is a comparison of a preformed protrusion and a protrusion provided in accordance with an embodiment of the present invention.
Wherein the content of the first and second substances,
1. the method comprises the steps of pre-forging, 11, prefabricating a bulge, 2, disc pieces, 21 and a bulge.
Detailed Description
The invention discloses a forging method of a disc piece, which aims to avoid the folding defect of the disc piece in the forming process and improve the production efficiency of the disc piece.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1 and fig. 2.
The invention discloses a forging method of a disc part, which comprises the following steps:
1) placing the disc blank on a pre-forging die for primary forging and pressing to manufacture a pre-forging piece 1, wherein a first groove is formed in the pre-forging die and used for forming a prefabricated bulge 11, the position of the prefabricated bulge 11 corresponds to the position of a bulge 21 on a disc part 2, the height of the prefabricated bulge 11 is lower than that of the disc part 2, and the inclination of the prefabricated bulge 11 is smaller than that of the bulge 21 of the disc part 2;
2) and placing the pre-forging piece 1 on a final forging die for secondary forging, wherein a second groove is formed in the final forging die, the prefabricated protrusion 11 can be embedded into the second groove, and the second groove is used for positioning the prefabricated protrusion 11 and forming the protrusion 21.
The scheme improves the forging and pressing die of the disc part, the first forging and pressing is pre-forging and pressing, and a small bag corresponding to the position of the bulge 21 on the disc part 2 is formed on the disc blank through the pre-forging and pressing, and the small bag is the prefabricated bulge 11. The prefabricated protrusion 11 has a low height and a small inclination relative to the protrusion 21 on the disc, and the risk of the occurrence of folding defects can be reduced relative to a mode of directly forging the protrusion 21 with a high height and a large inclination.
And after the pre-forging, the disc part 2 is subjected to final forging, namely, secondary forging, wherein the bulge 21 is manufactured by secondary processing on the basis of the prefabricated bulge 11, and the height and the inclination of single forging of the bulge 21 are reduced to a certain extent, so that the risk of the disc part 2 with folding defects is further reduced.
The disc part 2 is forged and pressed in multiple times by the forging and pressing method of the disc part. Firstly, placing a disc blank on a pre-forging die for pre-forging to prepare a pre-forging piece 1, and placing the pre-forging piece 1 on a finish-forging die for secondary forging to form a disc piece 2. The pre-forging die is provided with a first groove for forming the prefabricated protrusion 11, and the final forging die is provided with a second groove for further forming the prefabricated protrusion 11 to form the protrusion 21 required by a manufacturer on the disc part 2. The disc part forging method disclosed by the scheme comprises the steps of firstly manufacturing the prefabricated protrusion 11 with lower height and smaller inclination through the pre-forging die, then forming the protrusion 21 required by a factory through the final forging die, and forging at least twice, so that the disc part 2 can be prevented from having the folding defect in the forming process, the disc part 2 does not need to be repaired or even forged again, and the production efficiency of the disc part is greatly improved.
The second groove on the final forging die can play a role in positioning the prefabricated protrusion 11 on the pre-forging part 1, and dislocation of the pre-forging part 1 in the final forging pressing process is avoided.
In order to further optimize the above technical solution, step 1) of the forging method for a disc piece disclosed in the present disclosure can be repeated at least once, that is, step 1) may be performed at least twice.
But the depth and slope of the first groove of the pre-forge dies used in two adjacent first forgings are different.
Specifically, the depth of the first groove of the pre-forging die used for the next first forging is deeper than the depth of the first groove of the forging die used for the last first forging, and the inclination of the first groove of the pre-forging die used for the next first forging is larger than the inclination of the first groove of the forging die used for the last first forging.
In this scheme, before the forging and pressing for the second time, carry out forging and pressing for the first time at least twice, and every after forging and pressing for the first time, the height of prefabricated arch 11 increases, and the inclination of prefabricated arch 11 increases, is close to the height and the inclination of the arch 21 on the disc spare 2 that the producer required gradually.
This scheme falls into arch 21 and forges and presses many times, has reduced the risk that arch 21 folded defect appears to a certain extent.
Preferably, the depth of the first groove is at most 1/2 the depth of the second groove.
Preferably, the slope of the second groove is at most 1/2 the slope of the second groove.
The forging and pressing method for the disc part is suitable for the condition that the disc blank is made of aluminum alloy.
The disk member 2 is not limited to an aluminum alloy disk member, and may be made of other materials suitable for forging and pressing a disk member.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A method for forging a disc member, comprising the steps of:
1) placing the disc blank on a pre-forging die for primary forging and pressing to manufacture a pre-forging piece (1), wherein a first groove is formed in the pre-forging die and used for forming a prefabricated protrusion (11), the position of the prefabricated protrusion (11) corresponds to the position of a protrusion (21) on a disc piece (2), the height of the prefabricated protrusion (11) is lower than that of the disc piece (2), and the inclination of the prefabricated protrusion (11) is smaller than that of the protrusion (21) of the disc piece (2);
2) and placing the pre-forging piece (1) on a finish forging die for secondary forging, wherein a second groove is formed in the finish forging die, the prefabricated protrusion (11) can be embedded into the second groove, and the second groove is used for positioning the prefabricated protrusion (11) and simultaneously forming the protrusion (21).
2. A method of forging a disc member as set forth in claim 1, wherein said step 1) is repeated at least once, and said pre-forging die used in the next said first forging is progressively deeper and progressively more inclined than said first groove of said pre-forging die used in the previous said first forging.
3. A method of forging a disc member as recited in claim 1, wherein a depth of said first groove is at most 1/2 times a depth of said second groove.
4. The method of forging a disc member as recited in claim 1, wherein a slope of said first groove is at most 1/2 a slope of said second groove.
5. A method of forging a disc member as recited in claim 1, wherein the disc blank is an aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521050.6A CN112775373A (en) | 2020-12-21 | 2020-12-21 | Forging method of disc part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521050.6A CN112775373A (en) | 2020-12-21 | 2020-12-21 | Forging method of disc part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112775373A true CN112775373A (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011521050.6A Pending CN112775373A (en) | 2020-12-21 | 2020-12-21 | Forging method of disc part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112775373A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB525833A (en) * | 1938-03-01 | 1940-09-05 | Elektron Co Mbh | Improvements in and relating to the manufacture of wheels for aeroplanes |
| GB8413733D0 (en) * | 1984-05-28 | 1984-07-04 | Diemer D J | Trimming forgings |
| JP2005040798A (en) * | 2003-07-22 | 2005-02-17 | Musashi Seimitsu Ind Co Ltd | Method for forming forged case |
| US20110048097A1 (en) * | 2008-01-29 | 2011-03-03 | Nsk Ltd. | Method of manufacturing outwardly flanged metal member |
| CN104128554A (en) * | 2014-06-24 | 2014-11-05 | 湖北三环锻造有限公司 | Splitting extrusion forging process of disc-braked knuckle |
| CN104139667A (en) * | 2014-07-22 | 2014-11-12 | 德清德曼汽车零部件有限公司 | Forging blank for outer ring of automobile hub |
| CN104439001A (en) * | 2014-11-29 | 2015-03-25 | 无锡透平叶片有限公司 | Larger titanium alloy structural component die-forging forming method |
| CN106180519A (en) * | 2016-07-20 | 2016-12-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | Die-forging forming mould and manufacturing process thereof |
| CN109807276A (en) * | 2019-03-18 | 2019-05-28 | 哈尔滨工业大学 | A kind of long support arm lug disk forge piece sub-material control manufacturing process |
| CN110449542A (en) * | 2019-09-12 | 2019-11-15 | 哈尔滨工业大学 | A kind of outer circular edge belt length lug forging part manufacturing process |
| CN111687365A (en) * | 2020-06-18 | 2020-09-22 | 西安建筑科技大学 | Claw utmost point preforging assembling die |
| CN112059091A (en) * | 2020-10-10 | 2020-12-11 | 山东大学 | Disc type aluminum alloy automobile hub forging die structure and forging method |
-
2020
- 2020-12-21 CN CN202011521050.6A patent/CN112775373A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB525833A (en) * | 1938-03-01 | 1940-09-05 | Elektron Co Mbh | Improvements in and relating to the manufacture of wheels for aeroplanes |
| GB8413733D0 (en) * | 1984-05-28 | 1984-07-04 | Diemer D J | Trimming forgings |
| JP2005040798A (en) * | 2003-07-22 | 2005-02-17 | Musashi Seimitsu Ind Co Ltd | Method for forming forged case |
| US20110048097A1 (en) * | 2008-01-29 | 2011-03-03 | Nsk Ltd. | Method of manufacturing outwardly flanged metal member |
| CN104128554A (en) * | 2014-06-24 | 2014-11-05 | 湖北三环锻造有限公司 | Splitting extrusion forging process of disc-braked knuckle |
| CN104139667A (en) * | 2014-07-22 | 2014-11-12 | 德清德曼汽车零部件有限公司 | Forging blank for outer ring of automobile hub |
| CN104439001A (en) * | 2014-11-29 | 2015-03-25 | 无锡透平叶片有限公司 | Larger titanium alloy structural component die-forging forming method |
| CN106180519A (en) * | 2016-07-20 | 2016-12-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | Die-forging forming mould and manufacturing process thereof |
| CN109807276A (en) * | 2019-03-18 | 2019-05-28 | 哈尔滨工业大学 | A kind of long support arm lug disk forge piece sub-material control manufacturing process |
| CN110449542A (en) * | 2019-09-12 | 2019-11-15 | 哈尔滨工业大学 | A kind of outer circular edge belt length lug forging part manufacturing process |
| CN111687365A (en) * | 2020-06-18 | 2020-09-22 | 西安建筑科技大学 | Claw utmost point preforging assembling die |
| CN112059091A (en) * | 2020-10-10 | 2020-12-11 | 山东大学 | Disc type aluminum alloy automobile hub forging die structure and forging method |
Non-Patent Citations (1)
| Title |
|---|
| 王建中等: "环形锻件钢坯铸钢模上出模斜度的研究与应用", 《煤矿机械》 * |
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Application publication date: 20210511 |