CN104826980A - Forging process of gear ring - Google Patents
Forging process of gear ring Download PDFInfo
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- CN104826980A CN104826980A CN201510055375.2A CN201510055375A CN104826980A CN 104826980 A CN104826980 A CN 104826980A CN 201510055375 A CN201510055375 A CN 201510055375A CN 104826980 A CN104826980 A CN 104826980A
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- Prior art keywords
- heated
- ingot
- machined
- gear ring
- fire
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- 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
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a forging process of a gear ring. The process includes following steps that: 1) in first firing, an ingot is heated to 1150 DEG C, and the ingot is subjected to heat preservation for 0.5 hour, dead head pressing, chamfering and sprue filing are performed on the ingot; 2) in second firing, re-heating, upsetting and drawing out are performed on the machined ingot; 3) in third firing, re-heating, upsetting, rotary flattening, punching and reaming are performed on the machined ingot; 4) in fourth firing, the machined ingot is re-heated, upsetting is performed on the machined ingot in a mold ring so that the machined ingot can be in a technique size, the mold is removed, and reaming is performed on the machined ingot so that the machined ingot can be in a technique size, and truing is performed, and machining is completed; 5) heat treatment is performed: the machined ingot is heated to 860 DEC C to 880 DEC C, and heat preservation is performed on the machined ingot for 5 to 5.5 hours, and the machined ingot is subjected to air cooling to 520 DEC C, and the machined ingot is heated to 610 DEC C to 630 DEC C, and heat preservation is performed on the machined ingot for 2 to 2.5 hours, and the machined ingot is subjected to air cooling to 260 DEC C. The forging process has high precision. With the forging process adopted, thickness of the wall of the gear ring can be uniform, and the service life of the gear ring can be prolonged.
Description
Technical field
The invention belongs to technical field of forging, particularly relate to a kind of Forging Technology of gear ring.
Background technology
Gear ring is used for the transmission of production line, and its quality good or not is directly connected to the normal operation of whole production line.Gear ring belongs to thin-walled ring forgings, easily occurs wall unevenness, the problem such as folding, oval in forging process, thus causes engagement bad, breaks gear ring during rotation.
Summary of the invention
Object of the present invention, in order to solve the problems of the technologies described above, provides a kind of Forging Technology of gear ring, and this technique forging precision is high, and wall thickness thickness is even.Its technical scheme is as follows: a kind of Forging Technology of gear ring, it is characterized in that, described gear ring is made up of following component by weight percentage: carbon 0.38-0.43 silicon 0.15-0.35 manganese 0.75-1.00 phosphorus <0.035 sulphur <0.04 chromium 0.80-1.10 molybdenum 0.15-0.25, and surplus is iron; Described Forging Technology comprises the steps: 1), the first fire will have the Heating Steel Ingots temperature to 1150 DEG C of above-mentioned composition, be incubated 0.5 hour, bar hold, chamfered edge, the wrong mouth of a river; 2), the second fire is to 1) the base material that obtains of step heats again, is heated to 1100 ~ 1130 DEG C, jumping-up, pulling; 3), the 3rd fire is to 2) the base material that obtains of step again heats, is heated to 1050 ~ 1080 DEG C, jumping-up, rotates and flatten, punching, reaming; 4), the 4th fire is to 3) the base material that obtains of step heats again, be heated to 1020 ~ 1050 DEG C, in mould circle, jumping-up is to process, depanning, reaming to process, finishing, completion, controls total forging ratio > 4; 5), heat treatment: be heated to 870 ± 10 ° of C and be incubated 5-5.5 hour, air-cooled to 520 ° of C, be heated to 620 ± 10 ° of C and be incubated 2-2.5 hour, air-cooled to 260 ° of C, check hardness≤269.
Compared with prior art, advantage of the present invention is: forging precision is high, and wall thickness thickness is even, improves the service life of gear ring.
Detailed description of the invention
Embodiment one
A Forging Technology for gear ring, is characterized in that, described gear ring is made up of following component by weight percentage: carbon 0.38 silicon 0.15 manganese 0.75 phosphorus 0.015 sulphur 0.01 chromium 0.80 molybdenum 0.15, and surplus is iron; Described Forging Technology comprises the steps: 1), the first fire will have the Heating Steel Ingots temperature to 1150 DEG C of above-mentioned composition, be incubated 0.5 hour, bar hold, chamfered edge, the wrong mouth of a river; 2), the second fire is to 1) the base material that obtains of step heats again, is heated to 1100 DEG C, jumping-up, pulling; 3), the 3rd fire is to 2) the base material that obtains of step again heats, is heated to 1050 DEG C, jumping-up, rotates and flatten, punching, reaming; 4), the 4th fire is to 3) the base material that obtains of step heats again, be heated to 1020 DEG C, in mould circle, jumping-up is to process, depanning, reaming to process, finishing, completion, controls total forging ratio 4.2; 5), heat treatment: be heated to 860 ° of C and be incubated 5 hours, air-cooled to 520 ° of C, be heated to 610 ° of C and be incubated 2 hours, air-cooled to 260 ° of C, check hardness 260.
Embodiment two
A Forging Technology for gear ring, is characterized in that, described gear ring is made up of following component by weight percentage: carbon 0.40 silicon 0.20 manganese 0.95 phosphorus 0.025 sulphur 0.02 chromium 0.90 molybdenum 0.20, and surplus is iron; Described Forging Technology comprises the steps: 1), the first fire will have the Heating Steel Ingots temperature to 1150 DEG C of above-mentioned composition, be incubated 0.5 hour, bar hold, chamfered edge, the wrong mouth of a river; 2), the second fire is to 1) the base material that obtains of step heats again, is heated to 1120 DEG C, jumping-up, pulling; 3), the 3rd fire is to 2) the base material that obtains of step again heats, is heated to 1060 DEG C, jumping-up, rotates and flatten, punching, reaming; 4), the 4th fire is to 3) the base material that obtains of step heats again, be heated to 1030 DEG C, in mould circle, jumping-up is to process, depanning, reaming to process, finishing, completion, controls total forging ratio 4.5; 5), heat treatment: be heated to 870 ° of C and be incubated 5.2 hours, air-cooled to 520 ° of C, be heated to 620 ° of C and be incubated 2.2 hours, air-cooled to 260 ° of C, check hardness 265.
Embodiment three
A Forging Technology for gear ring, is characterized in that, described gear ring is made up of following component by weight percentage: carbon 0.43 silicon 0.35 manganese 1.00 phosphorus 0.033 sulphur 0.035 chromium 1.10 molybdenum 0.25, and surplus is iron; Described Forging Technology comprises the steps: 1), the first fire will have the Heating Steel Ingots temperature to 1150 DEG C of above-mentioned composition, be incubated 0.5 hour, bar hold, chamfered edge, the wrong mouth of a river; 2), the second fire is to 1) the base material that obtains of step heats again, is heated to 1130 DEG C, jumping-up, pulling; 3), the 3rd fire is to 2) the base material that obtains of step again heats, is heated to 1080 DEG C, jumping-up, rotates and flatten, punching, reaming; 4), the 4th fire is to 3) the base material that obtains of step heats again, be heated to 1050 DEG C, in mould circle, jumping-up is to process, depanning, reaming to process, finishing, completion, controls total forging ratio 5; 5), heat treatment: be heated to 880 ° of C and be incubated 5.5 hours, air-cooled to 520 ° of C, be heated to 630 ° of C and be incubated 2.5 hours, air-cooled to 260 ° of C, check hardness 269.
Claims (1)
1. the Forging Technology of a gear ring, it is characterized in that, described gear ring is made up of following component by weight percentage: carbon 0.38-0.43 silicon 0.15-0.35 manganese 0.75-1.00 phosphorus <0.035 sulphur <0.04 chromium 0.80-1.10 molybdenum 0.15-0.25, and surplus is iron; Described Forging Technology comprises the steps: 1), the first fire will have the Heating Steel Ingots temperature to 1150 DEG C of above-mentioned composition, be incubated 0.5 hour, bar hold, chamfered edge, the wrong mouth of a river; 2), the second fire is to 1) the base material that obtains of step heats again, is heated to 1100 ~ 1130 DEG C, jumping-up, pulling; 3), the 3rd fire is to 2) the base material that obtains of step again heats, is heated to 1050 ~ 1080 DEG C, jumping-up, rotates and flatten, punching, reaming; 4), the 4th fire is to 3) the base material that obtains of step heats again, be heated to 1020 ~ 1050 DEG C, in mould circle, jumping-up is to process, depanning, reaming to process, finishing, completion, controls total forging ratio > 4; 5), heat treatment: be heated to 870 ± 10 ° of C and be incubated 5-5.5 hour, air-cooled to 520 ° of C, be heated to 620 ± 10 ° of C and be incubated 2-2.5 hour, air-cooled to 260 ° of C, check hardness≤269.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055375.2A CN104826980A (en) | 2015-02-03 | 2015-02-03 | Forging process of gear ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055375.2A CN104826980A (en) | 2015-02-03 | 2015-02-03 | Forging process of gear ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104826980A true CN104826980A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510055375.2A Pending CN104826980A (en) | 2015-02-03 | 2015-02-03 | Forging process of gear ring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734843A (en) * | 2016-11-18 | 2017-05-31 | 无锡宝露重工有限公司 | A kind of forging technology of middle carbon quenched and tempered steel gear ring |
| CN107282836A (en) * | 2017-06-29 | 2017-10-24 | 宁波吉威熔模铸造有限公司 | A kind of casting technique of reinforced train shaft coupling |
| CN108994248A (en) * | 2018-09-17 | 2018-12-14 | 杭州金越晟重型机械有限公司 | A kind of gear forging technique |
| CN111069489A (en) * | 2019-12-29 | 2020-04-28 | 江苏金源高端装备股份有限公司 | Gear ring forging process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1152701A1 (en) * | 1982-04-22 | 1985-04-30 | Всесоюзный Научно-Исследовательский Институт Комплексных Проблем Машиностроения Для Животноводства И Кормопроизводства | Method of stamping gear wheels |
| JPS61195725A (en) * | 1985-02-27 | 1986-08-30 | Sumitomo Metal Ind Ltd | Manufacture of high strength spur gear |
| CN1963260A (en) * | 2006-11-22 | 2007-05-16 | 重庆长风精化毛坯有限责任公司 | Gear ring blank for automobile synchronizer and method for processing same |
| CN101780515A (en) * | 2009-12-23 | 2010-07-21 | 青岛三星精锻齿轮有限公司 | Process for precisely forging triple gear of dual-drive tandem |
| CN102990313A (en) * | 2012-11-13 | 2013-03-27 | 合肥市田源精铸有限公司 | High-strength hydraulic pump gear machining process |
| CN103157760A (en) * | 2011-12-09 | 2013-06-19 | 韶关市中机重工锻压有限公司 | Gear blank production technology method with hammer forging and die forging combined |
-
2015
- 2015-02-03 CN CN201510055375.2A patent/CN104826980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1152701A1 (en) * | 1982-04-22 | 1985-04-30 | Всесоюзный Научно-Исследовательский Институт Комплексных Проблем Машиностроения Для Животноводства И Кормопроизводства | Method of stamping gear wheels |
| JPS61195725A (en) * | 1985-02-27 | 1986-08-30 | Sumitomo Metal Ind Ltd | Manufacture of high strength spur gear |
| CN1963260A (en) * | 2006-11-22 | 2007-05-16 | 重庆长风精化毛坯有限责任公司 | Gear ring blank for automobile synchronizer and method for processing same |
| CN101780515A (en) * | 2009-12-23 | 2010-07-21 | 青岛三星精锻齿轮有限公司 | Process for precisely forging triple gear of dual-drive tandem |
| CN103157760A (en) * | 2011-12-09 | 2013-06-19 | 韶关市中机重工锻压有限公司 | Gear blank production technology method with hammer forging and die forging combined |
| CN102990313A (en) * | 2012-11-13 | 2013-03-27 | 合肥市田源精铸有限公司 | High-strength hydraulic pump gear machining process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734843A (en) * | 2016-11-18 | 2017-05-31 | 无锡宝露重工有限公司 | A kind of forging technology of middle carbon quenched and tempered steel gear ring |
| CN106734843B (en) * | 2016-11-18 | 2018-08-17 | 无锡宝露重工有限公司 | A kind of forging technology of middle carbon quenched and tempered steel gear ring |
| CN107282836A (en) * | 2017-06-29 | 2017-10-24 | 宁波吉威熔模铸造有限公司 | A kind of casting technique of reinforced train shaft coupling |
| CN108994248A (en) * | 2018-09-17 | 2018-12-14 | 杭州金越晟重型机械有限公司 | A kind of gear forging technique |
| CN111069489A (en) * | 2019-12-29 | 2020-04-28 | 江苏金源高端装备股份有限公司 | Gear ring forging process |
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Application publication date: 20150812 |