CN114260395A - Rolling forming method of aluminum alloy E-shaped section ring-shaped piece - Google Patents
Rolling forming method of aluminum alloy E-shaped section ring-shaped piece Download PDFInfo
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- CN114260395A CN114260395A CN202111606172.XA CN202111606172A CN114260395A CN 114260395 A CN114260395 A CN 114260395A CN 202111606172 A CN202111606172 A CN 202111606172A CN 114260395 A CN114260395 A CN 114260395A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 94
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005242 forging Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The invention discloses a rolling forming method of an aluminum alloy E-shaped section ring piece, which comprises the following steps of firstly providing a rolling tool of the aluminum alloy E-shaped section ring piece, wherein the rolling tool is provided with a pre-rolling pass and a final rolling pass: firstly, heating an aluminum alloy rectangular section ring blank to 440-460 ℃, and then putting the aluminum alloy rectangular section ring blank into a pre-rolling hole pattern of the rolling tool to roll the aluminum alloy rectangular section ring blank into a pre-rolling blank; and secondly, keeping the main roller and the pre-rolled blank, the upper conical roller and the lower conical roller axially immovable, completing that the core roller axially moves downwards within 30 seconds, putting the pre-rolled blank which still keeps the forging temperature into a finishing pass of the rolling tool, and then rolling the pre-rolled blank into an aluminum alloy E-shaped section annular piece. The method is mainly used for forming the aluminum alloy annular parts for aviation, aerospace and the like.
Description
Technical Field
The invention relates to a method for rolling and forming a ring-shaped piece, in particular to a method for rolling and forming an aluminum alloy E-shaped section ring-shaped piece.
Background
When the ring-shaped element with the special-shaped cross section, such as an E-shaped cross section ring-shaped element, is rolled and formed, a ring blank with a rectangular cross section needs to be heated and then is loaded into a pre-rolling tool to be rolled into a pre-rolling blank, then the pre-rolling blank is unloaded from the pre-rolling tool to be reheated, the pre-rolling tool is unloaded and then is loaded into a final-rolling tool, and then the reheated pre-rolling blank is loaded into the final-rolling tool to be rolled and formed finally, so that the assembly and disassembly of the tool are very complicated, time and labor are wasted, the production efficiency is influenced, and the energy is wasted due to the reheating of the pre-rolling blank.
Chinese patent specification CN101279344A published in 10/8.2008 discloses a rolling forming method of an aluminum alloy special-shaped ring forging. The method relates to a rolling die which is similar to the rolling tool, wherein a core roller die is arranged on a core roller of a ring rolling machine, a main roller die is arranged on a main roller, the core roller die and the main roller die are matched to form a special-shaped hole pattern for rolling a special-shaped ring forging, and a pre-rolling blank can be rolled into the special-shaped ring forging in the special-shaped hole pattern. The method comprises the steps of heating a hollow round cake, rolling the heated round cake into a rectangular pre-rolled blank, reheating the pre-rolled blank, putting the preheated pre-rolled blank into a rolling die of a ring rolling machine, and rolling the pre-rolled blank into a special-shaped ring forging piece.
Disclosure of Invention
The invention aims to solve the technical problem of providing a rolling forming method for realizing an aluminum alloy E-shaped section ring-shaped element without replacing a rolling tool, wherein the tool can continuously roll and form a pre-rolled blank and the E-shaped section ring-shaped element.
In order to solve the technical problem, the invention provides a rolling forming method of an aluminum alloy E-shaped section ring piece, which comprises a core roller, a main roller, an upper conical roller and a lower conical roller, wherein the upper conical roller and the lower conical roller are used for axial rolling; the outer circular surface of the main roller is provided with an E-shaped rolling surface which has the same shape and height as the outer circular surface of the aluminum alloy E-shaped section annular piece; the cylindrical rolling surface of the core roller and the E-shaped rolling surface on the outer circular surface of the main roller can form a pre-rolling hole pattern of an aluminum alloy E-shaped section ring piece; the boss-shaped rolling surface of the core roller and the E-shaped rolling surface on the outer circular surface of the main roller can form a finish pass of the aluminum alloy E-shaped section ring piece;
firstly, heating an aluminum alloy rectangular section ring blank to 440-460 ℃, and then putting the aluminum alloy rectangular section ring blank into a pre-rolling hole pattern of the rolling tool to roll the aluminum alloy rectangular section ring blank into a pre-rolling blank;
and secondly, keeping the main roller and the pre-rolled blank, the upper conical roller and the lower conical roller axially immovable, completing that the core roller axially moves downwards within 30 seconds, putting the pre-rolled blank which still keeps the forging temperature into a finishing pass of the rolling tool, and then rolling the pre-rolled blank into an aluminum alloy E-shaped section annular piece.
And the core roller of the rolling tool moves along the axial direction to enable the finishing pass of the aluminum alloy E-shaped section ring piece to fall to the position of the pre-rolling pass.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a rolling forming method of an aluminum alloy E-shaped section ring piece, which comprises the steps of firstly designing a rolling tool of the aluminum alloy E-shaped section ring piece, and arranging a cylindrical rolling surface and a boss-shaped rolling surface on a core roller capable of moving along the axial direction to enable the core roller to be matched with a main roller to form a pre-rolling pass at the lower half part of the core roller and form a final rolling pass at the upper half part of the core roller, so that a rectangular section ring blank only needs to be heated once, and the pre-rolling blank and the E-shaped section ring piece can be continuously rolled without replacing the tool in the rolling process, thereby saving energy, shortening the rolling time, improving the production efficiency, and the method does not need to be reheated to continuously roll on one core roller for two times, being beneficial to keeping the stability of the rolling process and the rolling process parameters, and obtaining the ring piece with high dimensional accuracy and good structure performance.
Drawings
The invention is described in further detail below with reference to the figures and the embodiments.
Fig. 1 is a longitudinal sectional view of an aluminum alloy E-section ring member.
Fig. 2 is a first assembly schematic diagram of the rolling tool of the invention.
Fig. 3 is a second assembly schematic diagram of the rolling tool of the invention.
FIG. 4 is a schematic diagram of an aluminum alloy E-shaped section ring-shaped member roll-formed by the rolling tool of the invention.
Detailed Description
As shown in fig. 1, an aluminum alloy E-section ring 100 is mainly composed of an inner annular surface 101 having a groove and an outer annular surface 102 having two grooves and an E-shape.
As shown in fig. 2 and 3, the rolling tool for the ring-shaped member with the E-shaped section of the aluminum alloy mainly comprises a core roll 10, a main roll 20, an upper tapered roll 31 and a lower tapered roll 32, wherein the upper half part of the core roll 10 is provided with a boss-shaped rolling surface 11 which is consistent with the groove of an inner annular surface 101 of the ring-shaped member with the E-shaped section 100 of the aluminum alloy and has the same height, and the lower half part of the core roll 10 is provided with a cylindrical rolling surface 13 which is consistent with the outer diameter of the core roll 10 and is equal to the height of the ring-shaped member with the E-shaped section 100 of the aluminum alloy; an E-shaped rolling surface 22 having the same shape and height as the outer circumferential surface 102 of the aluminum alloy E-shaped section ring 100 on the outer circumferential surface of the main roll 20; as shown in fig. 2, the cylindrical rolling surface 13 of the core roll 10 and the E-shaped rolling surface 22 on the outer circumferential surface of the main roll 20 can form a pre-pass 21 of the aluminum alloy E-section ring 100 for rolling a pre-rolled blank 50 (shown in fig. 4) of the aluminum alloy E-section ring 100; as shown in fig. 3, the boss-shaped rolling surface 11 of the core roll 10 and the E-shaped rolling surface 22 on the outer circumferential surface of the main roll 20 can form the final pass 23 of the aluminum alloy E-section ring 100 for final roll forming of the aluminum alloy E-section ring 100.
The rolling process of the aluminum alloy E-section ring 100 is described below by taking an aluminum alloy with material number 7050 as an example:
step 1, pre-rolling. As shown in FIG. 4, an aluminum alloy rectangular-section ring blank 40 is heated to 440 to 460 ℃ and then is placed in the pre-rolling pass 21 shown in FIG. 2 to be rolled into a pre-rolled blank 50.
And 2, finishing rolling. As shown in fig. 3 and 4, the pre-rolled blank 50, the upper tapered rolls 31 and the lower tapered rolls 32 are held stationary in the axial direction by the main rolls 20, and the core rolls 10 are moved down in the axial direction within 30 seconds, and the pre-rolled blank 50, which is still kept at the forging temperature, is loaded into the finish pass 23 shown in fig. 3, and then the pre-rolled blank 50 is rolled into the aluminum alloy E-section ring 100 shown in fig. 1.
Claims (2)
1. A rolling forming method of an aluminum alloy E-shaped section ring piece comprises the steps of firstly providing a rolling tool of the aluminum alloy E-shaped section ring piece, wherein the rolling tool comprises a core roller, a main roller, an upper conical roller and a lower conical roller, the upper conical roller and the lower conical roller are used for axial rolling, the core roller can move along the axial direction, a boss-shaped rolling surface which is consistent with an inner annular surface groove of the aluminum alloy E-shaped section ring piece and has the same height is arranged at the upper half part of the core roller, and a cylindrical rolling surface which is consistent with the outer diameter of the core roller and has the same height as the aluminum alloy E-shaped section ring piece is arranged at the lower half part of the core roller; the outer circular surface of the main roller is provided with an E-shaped rolling surface which has the same shape and height as the outer circular surface of the aluminum alloy E-shaped section annular piece; the cylindrical rolling surface of the core roller and the E-shaped rolling surface on the outer circular surface of the main roller can form a pre-rolling hole pattern of an aluminum alloy E-shaped section ring piece; the boss-shaped rolling surface of the core roller and the E-shaped rolling surface on the outer circular surface of the main roller can form a finish pass of the aluminum alloy E-shaped section ring piece;
firstly, heating an aluminum alloy rectangular section ring blank to 440-460 ℃, and then putting the aluminum alloy rectangular section ring blank into a pre-rolling hole pattern of the rolling tool to roll the aluminum alloy rectangular section ring blank into a pre-rolling blank;
and secondly, keeping the main roller and the pre-rolled blank, the upper conical roller and the lower conical roller axially immovable, completing that the core roller axially moves downwards within 30 seconds, putting the pre-rolled blank which still keeps the forging temperature into a finishing pass of the rolling tool, and then rolling the pre-rolled blank into an aluminum alloy E-shaped section annular piece.
2. The method for roll forming an aluminum alloy E-section annular member according to claim 1, wherein the core roll is moved in the axial direction to allow the finishing pass of the aluminum alloy E-section annular member to fall to the position of the pre-pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606172.XA CN114260395A (en) | 2021-12-26 | 2021-12-26 | Rolling forming method of aluminum alloy E-shaped section ring-shaped piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606172.XA CN114260395A (en) | 2021-12-26 | 2021-12-26 | Rolling forming method of aluminum alloy E-shaped section ring-shaped piece |
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| CN114260395A true CN114260395A (en) | 2022-04-01 |
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| CN202111606172.XA Pending CN114260395A (en) | 2021-12-26 | 2021-12-26 | Rolling forming method of aluminum alloy E-shaped section ring-shaped piece |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071066A (en) * | 1993-06-17 | 1995-01-06 | Daido Steel Co Ltd | Manufacture of member having cross-sectional odd shape and its device |
| CN101279344A (en) * | 2008-04-23 | 2008-10-08 | 贵州安大航空锻造有限责任公司 | Rolling forming method of aluminum alloy special-shaped ring forging |
| CN102085549A (en) * | 2010-12-10 | 2011-06-08 | 贵州安大航空锻造有限责任公司 | Roll forming method of aluminum alloy high cylindrical ring forging |
| CN110280702A (en) * | 2019-07-25 | 2019-09-27 | 济南沃茨数控机械有限公司 | Multistation Ring Rolling Machine |
-
2021
- 2021-12-26 CN CN202111606172.XA patent/CN114260395A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071066A (en) * | 1993-06-17 | 1995-01-06 | Daido Steel Co Ltd | Manufacture of member having cross-sectional odd shape and its device |
| CN101279344A (en) * | 2008-04-23 | 2008-10-08 | 贵州安大航空锻造有限责任公司 | Rolling forming method of aluminum alloy special-shaped ring forging |
| CN102085549A (en) * | 2010-12-10 | 2011-06-08 | 贵州安大航空锻造有限责任公司 | Roll forming method of aluminum alloy high cylindrical ring forging |
| CN110280702A (en) * | 2019-07-25 | 2019-09-27 | 济南沃茨数控机械有限公司 | Multistation Ring Rolling Machine |
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Application publication date: 20220401 |