CN102513488A - Precise forging molding method for blank of automobile fork-shaped half shaft - Google Patents
Precise forging molding method for blank of automobile fork-shaped half shaft Download PDFInfo
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- CN102513488A CN102513488A CN2011104427680A CN201110442768A CN102513488A CN 102513488 A CN102513488 A CN 102513488A CN 2011104427680 A CN2011104427680 A CN 2011104427680A CN 201110442768 A CN201110442768 A CN 201110442768A CN 102513488 A CN102513488 A CN 102513488A
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- blank
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- fork
- shaped half
- automobile fork
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a precise forging molding method for a blank of an automobile fork-shaped half shaft, which is characterized by using hot extrusion molding. The method comprises: firstly, heating part of a round material to 1,050 to 1,150 DEG C; secondly, gathering the head part by upsetting and extrusion, heating the gathered head part to 1,050 to 1,150 DEG C and thus, forming the blank by hot extrusion for the first time; and finally, forming the blank by hot extrusion again. The method has the advantages that: heating part of the material saves over 30 percent of energy than heating the whole material; the process method which is closed extrusion eliminates fins on the extruded blank and therefore saves more than 2Kg of materials than free forging; production based on a die forging process is convenient and safe in operation, the drawback of manual control over quality of free forging is overcome, the overall machining allowance is small, and the production efficiency is improved effectively; and the shape error of the product is small, which helps to guarantee the quality of the forgings.
Description
Technical field
The present invention relates to a kind of precision forging manufacturing process of automobile fork-shaped half-shaft blank, belong to metalwork extrusion forming technology field.
Background technology
The corresponding product of the present invention belongs to the important spare part on the automotive axle, and like product is a power transmission shaft; The vehicle of this kind semiaxis coupling is particularly useful for the road condition of severe, is mostly that military vehicle uses.The process technology of this product is an open die forging at present, and process route is: blanking, and------the multi-pass fetal membrane pulling of bar portion---head is flattened, and---cut edge by split---twice die forging---in whole heating; This technical disadvantages is: overlap is bigger, and whole body machine-finish allowance is bigger; Production efficiency is lower, and the shape of product error is bigger, and quality stability is relatively poor, and labour intensity is big.
Summary of the invention
To the shortcoming of existing power transmission shaft processing, the present invention provides a kind of precision forging manufacturing process of novel automobile fork-shaped half-shaft blank.
To achieve these goals, the measure that the present invention taked:
A kind of precision forging manufacturing process of automobile fork-shaped half-shaft blank is characterized in that, said manufacturing process is for passing through thermal extrusion moulding method: at first, will justify the material local heat to 1050-1150 ℃; Secondly, head is gathered material, and then again it is mended temperature to 1050-1150 ℃, and blank is accomplished the base of hot extrusion for the first time through the mode through upsetting squeeze after the local heat; At last, it is hot-pressed through the second time;
Said manufacturing process is preparatory to 250 ℃-300 ℃ of heat and in operation to die cavity spray aquadag with mould earlier;
Said manufacturing process gathers squarely with the round bar head earlier;
Said manufacturing process is squeezed into the fork-shaped head through the forward shunting, and fork-shaped upwards simultaneously;
Said manufacturing process is realized through general hydraulic press.
Beneficial effect of the present invention: local heat, more whole heating and energy saving is more than 30%; This process belongs to Closed Extrusion, thus the few non-trimming of the blank that squeezes out, than open die forging material-saving more than 2Kg; Contour forging technique production has convenience, the security of operation, has avoided the obstacle of the artificial control of open die forging quality, makes that whole body machine-finish allowance is little, effectively enhances productivity; The shape of product error diminishes, and is beneficial to the assurance forging quality.
Description of drawings
Fig. 1, the present invention gather the blank structural representation behind the material process.
Fig. 2, blank structural representation after the present invention's hot extrusion for the first time preforming.
Fig. 3, the fork-shaped half-shaft blank sketch map that the present invention is for the second time hot-pressed.
The specific embodiment
A kind of precision forging manufacturing process of automobile fork-shaped half-shaft blank, said manufacturing process is for passing through thermal extrusion moulding method: at first, will justify the material local heat to 1050-1150 ℃; Secondly, head is gathered material, and then again it is mended temperature to 1050-1150 ℃, and blank is accomplished the base of hot extrusion for the first time through the mode through upsetting squeeze after the local heat; At last, it is hot-pressed through the second time; In the actual implementation process of patent, earlier that mould is preparatory to 250 ℃-300 ℃ of heat and in operation to die cavity spray aquadag; The bar part that sawing is good is put into the heating in medium frequency stove and is heated to 1050-1150 ℃, and is earlier with round bar heating part segregation squarely blank, as shown in Figure 1 on the 200T hydraulic press; After gathering the squarely blank, will gather the part of honest material and put into heating in medium frequency stove benefit temperature after 1050-1150 ℃, be hot extruded into Y-piece at the 315T hydraulic press again, as shown in Figure 2; On the 630T hydraulic press, accomplish whole forming process at last, the operation forging drawing is as shown in Figure 3.In implementation process, manufacturing process is squeezed into the fork-shaped head through the forward shunting, and fork-shaped upwards simultaneously.Meanwhile, the present invention has the following advantages: the present invention is local Frequency Induction Heating, and more whole heating and energy saving is more than 30%; The invention belongs to Closed Extrusion, thus the few non-trimming of the blank that squeezes out, than open die forging material-saving more than 2Kg; Contour forging technique production of the present invention has convenience, the security of operation, has avoided the obstacle of the artificial control of open die forging quality, is beneficial to the assurance forging quality.
Those skilled in the art's simple change and replacement all are within protection scope of the present invention in this area.
Claims (5)
1. the precision forging manufacturing process of an automobile fork-shaped half-shaft blank is characterized in that, said manufacturing process is for passing through thermal extrusion moulding method: at first, will justify the material local heat to 1050-1150 ℃; Secondly, head is gathered material, and then again it is mended temperature to 1050-1150 ℃, and blank is accomplished the base of hot extrusion for the first time through the mode through upsetting squeeze after the local heat; At last, it is hot-pressed through the second time.
2. according to the precision forging manufacturing process of the said a kind of automobile fork-shaped half-shaft blank of claim 1, it is characterized in that said manufacturing process is preparatory to 250 ℃-300 ℃ of heat and in operation to die cavity spray aquadag with mould earlier.
3. according to the precision forging manufacturing process of the said a kind of automobile fork-shaped half-shaft blank of claim 1, it is characterized in that said manufacturing process gathers squarely with the round bar head earlier.
4. according to the precision forging manufacturing process of the said a kind of automobile fork-shaped half-shaft blank of claim 1, it is characterized in that said manufacturing process is squeezed into the fork-shaped head through the forward shunting, fork-shaped upwards simultaneously.
5. according to the precision forging manufacturing process of the said a kind of automobile fork-shaped half-shaft blank of claim 1, it is characterized in that said manufacturing process is realized through general hydraulic press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104427680A CN102513488A (en) | 2011-12-27 | 2011-12-27 | Precise forging molding method for blank of automobile fork-shaped half shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104427680A CN102513488A (en) | 2011-12-27 | 2011-12-27 | Precise forging molding method for blank of automobile fork-shaped half shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102513488A true CN102513488A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104427680A Pending CN102513488A (en) | 2011-12-27 | 2011-12-27 | Precise forging molding method for blank of automobile fork-shaped half shaft |
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| CN (1) | CN102513488A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974742A (en) * | 2012-08-22 | 2013-03-20 | 昌利锻造有限公司 | Processing method of movable fork |
| CN104361962A (en) * | 2014-10-29 | 2015-02-18 | 林州市星河煤机有限公司 | Method for machining hot-extrusion steel caps of insulators of cantilevers of electrified railways |
| CN105583351A (en) * | 2015-12-19 | 2016-05-18 | 许昌中兴锻造有限公司 | Horizontal forging technology for middle-sized spline shaft yoke |
| CN105880921A (en) * | 2014-09-28 | 2016-08-24 | 重庆硕睿机械有限公司 | Extrusion forming manufacturing technique for automobile steering column shaft fork integrate piece |
| CN106180531A (en) * | 2016-08-31 | 2016-12-07 | 抚州申铃汽车配件有限责任公司 | A kind of half-shaft blank hydraulic press forging system and processing method |
| WO2020155559A1 (en) * | 2019-01-30 | 2020-08-06 | 江苏格尔顿传动有限公司 | Transmission shaft yoke die forgoing having high production efficiency, and processing method therefor |
| CN112453310A (en) * | 2020-10-30 | 2021-03-09 | 重庆传动轴股份有限公司 | Forging process of energy-saving rear spline shaft |
Citations (6)
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|---|---|---|---|---|
| JPH03138044A (en) * | 1989-10-24 | 1991-06-12 | Daiichi Tanzou Kk | Manufacture of machine parts by die forging |
| JPH10180394A (en) * | 1996-12-24 | 1998-07-07 | Sumitomo Heavy Ind Ltd | Method for forging edge part special shaped barlike article and device therefor |
| JP3259132B2 (en) * | 1997-12-05 | 2002-02-25 | 本田技研工業株式会社 | Forging die structure |
| JP2002178090A (en) * | 2000-12-15 | 2002-06-25 | Honda Motor Co Ltd | Forming method of outer wheel member for constant velocity joint and its preformed body |
| KR100971219B1 (en) * | 2008-01-15 | 2010-07-20 | 주식회사 포메탈 | Yoke manufacturing method |
| CN102107255A (en) * | 2010-12-20 | 2011-06-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Die forging forming method of basin-shaped blank |
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2011
- 2011-12-27 CN CN2011104427680A patent/CN102513488A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03138044A (en) * | 1989-10-24 | 1991-06-12 | Daiichi Tanzou Kk | Manufacture of machine parts by die forging |
| JPH10180394A (en) * | 1996-12-24 | 1998-07-07 | Sumitomo Heavy Ind Ltd | Method for forging edge part special shaped barlike article and device therefor |
| JP3259132B2 (en) * | 1997-12-05 | 2002-02-25 | 本田技研工業株式会社 | Forging die structure |
| JP2002178090A (en) * | 2000-12-15 | 2002-06-25 | Honda Motor Co Ltd | Forming method of outer wheel member for constant velocity joint and its preformed body |
| KR100971219B1 (en) * | 2008-01-15 | 2010-07-20 | 주식회사 포메탈 | Yoke manufacturing method |
| CN102107255A (en) * | 2010-12-20 | 2011-06-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Die forging forming method of basin-shaped blank |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974742A (en) * | 2012-08-22 | 2013-03-20 | 昌利锻造有限公司 | Processing method of movable fork |
| CN102974742B (en) * | 2012-08-22 | 2015-01-21 | 昌利锻造有限公司 | Processing method of movable fork |
| CN105880921A (en) * | 2014-09-28 | 2016-08-24 | 重庆硕睿机械有限公司 | Extrusion forming manufacturing technique for automobile steering column shaft fork integrate piece |
| CN104361962A (en) * | 2014-10-29 | 2015-02-18 | 林州市星河煤机有限公司 | Method for machining hot-extrusion steel caps of insulators of cantilevers of electrified railways |
| CN105583351A (en) * | 2015-12-19 | 2016-05-18 | 许昌中兴锻造有限公司 | Horizontal forging technology for middle-sized spline shaft yoke |
| CN106180531A (en) * | 2016-08-31 | 2016-12-07 | 抚州申铃汽车配件有限责任公司 | A kind of half-shaft blank hydraulic press forging system and processing method |
| CN106180531B (en) * | 2016-08-31 | 2018-09-18 | 抚州申铃汽车配件有限责任公司 | A kind of half-shaft blank hydraulic press forging system and processing method |
| WO2020155559A1 (en) * | 2019-01-30 | 2020-08-06 | 江苏格尔顿传动有限公司 | Transmission shaft yoke die forgoing having high production efficiency, and processing method therefor |
| CN112453310A (en) * | 2020-10-30 | 2021-03-09 | 重庆传动轴股份有限公司 | Forging process of energy-saving rear spline shaft |
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Application publication date: 20120627 |