CN110773690A - Profiling ring rolling forming process for arc-shaped inner platform annular forge piece - Google Patents
Profiling ring rolling forming process for arc-shaped inner platform annular forge piece Download PDFInfo
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- CN110773690A CN110773690A CN201911063971.XA CN201911063971A CN110773690A CN 110773690 A CN110773690 A CN 110773690A CN 201911063971 A CN201911063971 A CN 201911063971A CN 110773690 A CN110773690 A CN 110773690A
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- blank
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- 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
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- 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
- 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
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Abstract
The invention belongs to the technical field of forging, and particularly relates to a profiling ring rolling forming process for an arc-shaped inner platform annular forging. The invention provides a profiling ring rolling forming process of an arc-shaped inner platform annular forging, which comprises the following steps: blanking; heating; preparing a blank; profiling ring rolling; wherein, the blank making steps are as follows: (1) upsetting, drawing and punching the heated blank to obtain a primary blank; (2) carrying out hole expansion on the primary blank; (3) and (4) carrying out inner hole pressing on the primary blank after reaming by adopting a forming tool to obtain the manufactured forging blank. The method has the advantages that the annular forging piece manufactured by the method has reasonable streamline distribution of the body forging piece, and the consumption of raw materials is greatly reduced compared with that of a rectangular ring rolling.
Description
Technical Field
The invention belongs to the technical field of forging, and particularly relates to a profiling ring rolling forming process for an arc-shaped inner platform annular forging.
Background
The arc-shaped inner platform annular forging is generally manufactured by adopting a rectangular ring rolling forming process, and then the size of the arc-shaped inner platform is ensured by cutting, and the process has the characteristics of large material consumption, low processing efficiency, unreasonable fiber distribution of the forging and the like.
Therefore, improvement is needed to overcome the defects of the rectangular ring rolling forming process, and a process capable of remarkably reducing material consumption and improving processing efficiency is invented.
Disclosure of Invention
In order to solve the technical problem, the invention provides a profiling ring rolling forming process of an arc-shaped inner platform ring-shaped forge piece.
The invention provides a profiling ring rolling forming process of an arc-shaped inner platform annular forging, which comprises the following steps:
blanking; heating; preparing a blank; profiling ring rolling;
wherein, the blank making steps are as follows:
(1) upsetting, drawing and punching the heated blank to obtain a primary blank;
(2) carrying out hole expansion on the primary blank;
(3) and (4) carrying out inner hole pressing on the primary blank after reaming by adopting a forming tool to obtain the manufactured forging blank.
Preferably, the profiling ring rolling forming process of the arc-shaped inner platform annular forging piece comprises the following steps:
s1, blanking: selecting round steel or steel ingot with the corresponding material of S355NL, and sawing and blanking;
s2, heating: putting the lower blank into a natural gas heating furnace, and heating according to corresponding heating specifications;
s3, blank making:
(1) upsetting, drawing and punching the heated blank to obtain a primary blank;
(2) carrying out hole expansion on the primary blank;
(3) adopting a forming tool to perform inner hole pressing on the primary blank after hole expansion to obtain a manufactured forging blank, wherein the size of the forging blank is satisfied, the outer diameter rolling ratio is less than or equal to the inner diameter rolling ratio, the upper portion rolling ratio is slightly less than the inner diameter rolling ratio, and the height of the forging blank satisfies the die-entering requirement;
the external diameter rolling ratio is the external diameter D of the forge piece
1The ratio of the forging stock to the outer diameter; the inner diameter rolling ratio is the ratio of the inner diameter D3 of the forge piece to the inner diameter of the forging stock; the upper rolling ratio is the ratio of the upper inner diameter D2 to the forging stock inner diameter;
s4, profiling ring rolling:
adopting a profiling core roller die to perform profiling ring rolling on the secondarily heated forging stock; effective height of profiling core roller die is more than or equal to height H of forge piece
1The length of the profiling core roller die cutter is less than or equal to 0.5 x (D) of the width of the upper notch of the forge piece
2-D
3) The thickness of the profiling core roller die is more than or equal to the height (H) of the upper part of the forging
1-H
2) Height of die table of profiling core roller and thickness H of forged piece
2Are equal.
The method has the advantages that the annular forging manufactured by the method has reasonable streamline distribution of the body forging, and the consumption of raw materials is greatly reduced compared with that of rectangular ring rolling.
Drawings
FIG. 1 is a schematic structural diagram of an arc-shaped inner platform annular forging piece.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art may better understand the invention, but the invention is not limited thereto.
Example 1
A profiling ring rolling forming process for an arc-shaped inner platform ring-shaped forge piece comprises the following steps:
s1, blanking: selecting round steel of S355NL material, and sawing and blanking;
s2, heating: putting the lower blank into a natural gas heating furnace, heating according to corresponding heating specifications, wherein the heating temperature is about 1220 ℃, and keeping the temperature for about 5 hours;
s3, blank making:
(1) upsetting, drawing and punching the heated blank to obtain a primary blank;
(2) carrying out hole expansion on the primary blank;
(3) adopt the shaping frock, carry out the hole pressure platform to the primary blank after the reaming, obtain the forging stock of making, the forging stock size satisfies: the outer diameter rolling ratio is less than or equal to the inner diameter rolling ratio, the upper part rolling ratio is slightly smaller than the inner diameter rolling ratio, and the height of the forging stock meets the requirement of entering a die;
the rolling ratio of the outer diameter is the outer diameter D of the forge piece
1The ratio of the forging stock to the outer diameter; the inner diameter rolling ratio is the ratio of the inner diameter D3 of the forging to the inner diameter of the forging stock; the upper rolling ratio is the ratio of the upper inner diameter D2 to the forging stock inner diameter;
s4, profiling ring rolling:
adopting a profiling core roller die to perform profiling ring rolling on the secondarily heated forging stock; effective height of profiling core roller die is more than or equal to height H of forge piece
1The length of the profiling core roller die cutter is less than or equal to 0.5 x (D) of the width of the upper notch of the forge piece
2-D
3) The thickness of the profiling core roller die is more than or equal to the height (H) of the upper part of the forging
1-H
2) Height of die table of profiling core roller and thickness H of forged piece
2Are equal.
Compared with rectangular ring rolling, the forging formed by the copying ring rolling has the advantages that the material consumption can be reduced by about 20%, the machining efficiency can be improved by 15%, meanwhile, the arc-shaped inner platform part is formed by copying, and the streamline distribution of internal fibers is more reasonable.
Example 2
S1, blanking: selecting a steel ingot made of S355NL, and sawing and blanking; the rest is exactly the same as in example 1.
Compared with the rectangular ring rolling forming process mentioned in the background art, the improvement of the invention obviously reduces the consumption of materials and also greatly improves the processing efficiency.
Claims (6)
1. A profiling ring rolling forming process for an arc-shaped inner platform ring-shaped forge piece comprises the following steps:
blanking; heating; preparing a blank; profiling ring rolling;
wherein, the blank making steps are as follows:
(1) upsetting, drawing and punching the heated blank to obtain a primary blank;
(2) carrying out hole expansion on the primary blank;
(3) and (4) carrying out inner hole pressing on the primary blank after reaming by adopting a forming tool to obtain the manufactured forging blank.
2. The profiling ring rolling forming process of the arc-shaped inner platform ring forging as claimed in claim 1, wherein S1 blanking: selecting round steel or steel ingot with corresponding material S355NL, and sawing and blanking.
3. The profiling ring rolling forming process of the arc-shaped inner platform ring forging as claimed in claim 1, wherein S2, heating: and (4) putting the next blank into a natural gas heating furnace, and heating according to corresponding heating specifications.
4. The profiling ring rolling forming process of the arc-shaped inner platform ring forging as claimed in claim 1, wherein S3 blank making:
(1) upsetting, drawing and punching the heated blank to obtain a primary blank;
(2) carrying out hole expansion on the primary blank;
(3) adopting a forming tool to perform inner hole pressing on the primary blank after hole expansion to obtain a manufactured forging blank, wherein the size of the forging blank is satisfied, the outer diameter rolling ratio is less than or equal to the inner diameter rolling ratio, the upper portion rolling ratio is slightly less than the inner diameter rolling ratio, and the height of the forging blank satisfies the die-entering requirement;
the external diameter rolling ratio is the external diameter D of the forge piece
1The ratio of the forging stock to the outer diameter; the inner diameter rolling ratio is the ratio of the inner diameter D3 of the forge piece to the inner diameter of the forging stock; the upper rolling ratio is the ratio of the upper inner diameter D2 to the forging stock inner diameter.
5. The profiling ring rolling forming process of the arc-shaped inner platform ring forging as claimed in claim 1, wherein S4, profiling ring rolling:
adopting a profiling core roller die to perform profiling ring rolling on the secondarily heated forging stock; effective height of profiling core roller die is more than or equal to height H of forge piece
1The length of the profiling core roller die cutter is less than or equal to 0.5 x (D) of the width of the upper notch of the forge piece
2-D
3) The thickness of the profiling core roller die is more than or equal to the height (H) of the upper part of the forging
1-H
2) Height of die table of profiling core roller and thickness H of forged piece
2Are equal.
6. The profiling ring rolling forming process of the arc-shaped inner platform ring-shaped forging piece as claimed in claim 1, comprising the following steps:
s1, blanking: selecting round steel or steel ingot with the corresponding material of S355NL, and sawing and blanking;
s2, heating: putting the lower blank into a natural gas heating furnace, and heating according to corresponding heating specifications;
s3, blank making:
(1) upsetting, drawing and punching the heated blank to obtain a primary blank;
(2) carrying out hole expansion on the primary blank;
(3) adopting a forming tool to perform inner hole pressing on the primary blank after hole expansion to obtain a manufactured forging blank, wherein the size of the forging blank is satisfied, the outer diameter rolling ratio is less than or equal to the inner diameter rolling ratio, the upper portion rolling ratio is slightly less than the inner diameter rolling ratio, and the height of the forging blank satisfies the die-entering requirement;
the external diameter rolling ratio is the external diameter D of the forge piece
1The ratio of the forging stock to the outer diameter; the inner diameter rolling ratio is the ratio of the inner diameter D3 of the forge piece to the inner diameter of the forging stock; the upper rolling ratio is the ratio of the upper inner diameter D2 to the forging stock inner diameter;
s4, profiling ring rolling:
adopting a profiling core roller die to perform profiling ring rolling on the secondarily heated forging stock; effective height of profiling core roller die is more than or equal to height H of forge piece
1The length of the profiling core roller die cutter is less than or equal to 0.5 x (D) of the width of the upper notch of the forge piece
2-D
3) The thickness of the profiling core roller die is more than or equal to the height (H) of the upper part of the forging
1-H
2) Profiling core roller die table height and forgingThickness H
2Are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063971.XA CN110773690A (en) | 2019-11-04 | 2019-11-04 | Profiling ring rolling forming process for arc-shaped inner platform annular forge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063971.XA CN110773690A (en) | 2019-11-04 | 2019-11-04 | Profiling ring rolling forming process for arc-shaped inner platform annular forge piece |
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|---|---|
| CN110773690A true CN110773690A (en) | 2020-02-11 |
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| CN201911063971.XA Pending CN110773690A (en) | 2019-11-04 | 2019-11-04 | Profiling ring rolling forming process for arc-shaped inner platform annular forge piece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935173A (en) * | 2021-01-28 | 2021-06-11 | 伊莱特能源装备股份有限公司 | Bearing sleeve forge piece die forging blank making and die ring rolling forming process |
| CN113000755A (en) * | 2021-03-24 | 2021-06-22 | 上海电气上重铸锻有限公司 | Profiling forging forming method and tool for oversized forging substitute ring forging |
| CN113182470A (en) * | 2021-04-12 | 2021-07-30 | 伊莱特能源装备股份有限公司 | Near-net forming manufacturing process for hundred-ton-grade special-shaped cross-section ring forging |
Citations (5)
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|---|---|---|---|---|
| CN102319855A (en) * | 2011-08-27 | 2012-01-18 | 江阴振宏重型锻造有限公司 | Method for forging thick-walled ring-shaped parts |
| CN106541064A (en) * | 2015-09-22 | 2017-03-29 | 首都航天机械公司 | A kind of hammer cogging process of super large-scale aluminium alloy ingot casting |
| CN107321892A (en) * | 2017-06-01 | 2017-11-07 | 凯盛重工有限公司 | One kind forging shaft coupling forging process |
| CN108914015A (en) * | 2018-08-10 | 2018-11-30 | 中航卓越锻造（无锡）有限公司 | The super-huge forging special-shape ring of low-alloy high-strength HI high impact function and its forging method |
| CN109834211A (en) * | 2017-11-28 | 2019-06-04 | 上海电气上重铸锻有限公司 | The forging forming method of special-shaped barrel |
-
2019
- 2019-11-04 CN CN201911063971.XA patent/CN110773690A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319855A (en) * | 2011-08-27 | 2012-01-18 | 江阴振宏重型锻造有限公司 | Method for forging thick-walled ring-shaped parts |
| CN106541064A (en) * | 2015-09-22 | 2017-03-29 | 首都航天机械公司 | A kind of hammer cogging process of super large-scale aluminium alloy ingot casting |
| CN107321892A (en) * | 2017-06-01 | 2017-11-07 | 凯盛重工有限公司 | One kind forging shaft coupling forging process |
| CN109834211A (en) * | 2017-11-28 | 2019-06-04 | 上海电气上重铸锻有限公司 | The forging forming method of special-shaped barrel |
| CN108914015A (en) * | 2018-08-10 | 2018-11-30 | 中航卓越锻造（无锡）有限公司 | The super-huge forging special-shape ring of low-alloy high-strength HI high impact function and its forging method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935173A (en) * | 2021-01-28 | 2021-06-11 | 伊莱特能源装备股份有限公司 | Bearing sleeve forge piece die forging blank making and die ring rolling forming process |
| CN113000755A (en) * | 2021-03-24 | 2021-06-22 | 上海电气上重铸锻有限公司 | Profiling forging forming method and tool for oversized forging substitute ring forging |
| CN113000755B (en) * | 2021-03-24 | 2022-03-25 | 上海电气上重铸锻有限公司 | Profiling forging forming method and tool for oversized forging substitute ring forging |
| CN113182470A (en) * | 2021-04-12 | 2021-07-30 | 伊莱特能源装备股份有限公司 | Near-net forming manufacturing process for hundred-ton-grade special-shaped cross-section ring forging |
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Application publication date: 20200211 |
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