CN203695839U - Combined closed-type forming die for method of forging tubular parts of seamless tube - Google Patents
Combined closed-type forming die for method of forging tubular parts of seamless tube Download PDFInfo
- Publication number
- CN203695839U CN203695839U CN201420004107.9U CN201420004107U CN203695839U CN 203695839 U CN203695839 U CN 203695839U CN 201420004107 U CN201420004107 U CN 201420004107U CN 203695839 U CN203695839 U CN 203695839U
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- Prior art keywords
- forging
- forming die
- punch
- die
- dies
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- Expired - Fee Related
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- 238000005242 forging Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000037250 Clearance Effects 0.000 claims abstract description 6
- 230000035512 clearance Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a combined closed-type forming die for a method of forging tubular parts of a seamless tube. The forming die belongs to the technical field of hot working of seamless steel pipes. The forming die mainly solves problems that the utilization rate of materials is low and the subsequent machining workload is heavy because a conventional tubular forge piece employs a thick-walled tube for cutting. The main characteristics of the forming die are that the forming die comprises convex dies, concave dies, and positioning sleeves; the concave dies are respectively provided with a cavity which is arranged vertically in an axial direction, wherein the cavities are consistent with the shapes of two tubular forge pieces with different diameters; the shapes of the convex dies are consistent with the inner cavities of the tubular forge pieces; the inner ends of the convex dies extend under transition parts, with different diameters, of the tubular forge pieces. The positioning sleeves are annular bodies which cooperate with the convex and concave dies in a clearance fit manner. The forming die provided by the utility model improves the utilization rate of materials, reduces the subsequent machining workload, is mainly used for the forging of axle shaft sleeves, transmission-shaft splined hubs, and sliding sleeve workblank.
Description
Technical field
The utility model belongs to seamless steel pipe technical field of hot working.Be specifically related to a kind of combination closed pattern match, for take seamless steel pipe as raw material, change the method for the forging cast part of its shape by forging.
Background technology
At present, the blank such as traditional axle tube, splined driveshaft cover and slip cap is the method processing that adopts thick-walled pipe machining and hot extrusion blind hole forging.Converted products production is long in time limit like this, stock utilization is low, energy consumption is high, and later stage machined work amount is large, the expense of taking a lot of work material, and production cost is high.
Summary of the invention
The purpose of this utility model is exactly for tubulose parts machining weak points such as traditional semiaxis, a kind of new combination closed pattern match for seamless steel pipe forging cast part method proposing, in the situation that not investing special materials in the tube former, utilize common forging equipment, stock utilization is improved and the minimizing of later stage machined workload, be applicable to and meet the forging of axle tube, splined driveshaft cover and slip cap blank.
Technical solution of the present utility model is: a kind of combination closed pattern match that forges cast part for seamless pipe, is characterized in that: comprise punch, die and positioning sleeve; Wherein, die is provided with the consistent cavity of cast forging profile axial, that have a different-diameter with two sections up and down; The profile of punch is consistent with cast forging inner chamber, and the inner of punch extends cast forging different-diameter and excessively sentences down; Positioning sleeve be one section with the torus of punch and die matched in clearance.
Technical solution of the present utility model is the die by 5CrMnMo mold materials in described die.
Technical solution of the present utility model is the punch by 40Cr mold materials in described punch.
Technical solution of the present utility model is the positioning sleeve by 40Cr mold materials in described positioning sleeve.
Technical solution of the present utility model is 2 in described die, and punch is 6.
The method that the utility model forges cast part for seamless pipe comprises following processing step:
A is by seamless steel pipe blank material thermal deformation part local heat to 950 ℃-1050 ℃;
Die put into by the seamless steel pipe blank material of heating by b, and hammering jumping-up exceeds die 5-10mm to this seamless steel pipe blank material;
C squeezes into punch in seamless steel pipe blank material endoporus, adds positioning sleeve, hammering moulding;
D lifts loose tool, overturns 180 ° and is placed on drain cap, touches punch material returned bar, and punch is separated;
E lifts loose tool, is placed on drain cap, touches die material returned bar, and cast forging is separated with die, take-off pipe swaged forging part.
The utility model is owing to adopting by punch, the combination closed pattern match that die and positioning sleeve form, wherein, die is provided with axial up and down, the consistent cavity of cast forging profile that there is different-diameter with two sections, the profile of punch is consistent with cast forging inner chamber, the inner of punch extends cast forging different-diameter and excessively sentences down, positioning sleeve be one section with the torus of punch and die matched in clearance, thereby can will after seamless steel pipe blank material thermal deformation part local heat, put into die, again punch is squeezed in seamless steel pipe blank material endoporus, add positioning sleeve, hammering moulding, last take-off pipe swaged forging part.The utility model has overcome the deficiencies in the prior art, in the situation that not needing to invest special materials in the tube former, utilize common forging equipment, on forging hammer, produce qualified tubulose forging, stock utilization improves 30%--40%, because adopting intermediate frequency furnace local heat, forging energy consumption decline 25%--30%; Later stage machined workload reduces 20%--40%.The utlity model has the feature that stock utilization improves and later stage machined workload reduces that makes.The utility model is mainly used in the forging of axle tube, splined driveshaft cover and slip cap blank etc.
accompanying drawing explanation
Fig. 1 is the structural representation of the utility model combination closed pattern match and cast forging.
Fig. 2 is the structural representation of cast forging.
Fig. 3 is the structural representation of the utility model die.
Fig. 4 is the structural representation of the utility model punch.
Fig. 5 is the structural representation of the utility model positioning sleeve.
The specific embodiment
As shown in Figures 1 to 5.The utility model combination closed pattern match be formed by punch 2, die 3 and positioning sleeve 1 mould.Wherein, die 3 is provided with the consistent cavity of cast forging 4 profiles axial, that have a different-diameter with two sections up and down.The profile of punch 2 is consistent with cast forging 4 inner chambers, and the inner of punch 2 extends cast forging 4 different-diameters and excessively sentences down.Positioning sleeve 1 be one section with the torus of punch 2 and die 3 matched in clearance.Cast forging 4 is spline housing forging, and punch 2, die 3 and positioning sleeve 1 will be according to the shape designs of spline housing forging.Hammer force F direction is downward.
It is large that die bears hitting power, have enough intensity.Forging enters mould from blank and separates to forging, and nearly 1 minute of time, the forging contact mould time is long, and mould is easy to reach the annealing temperature of himself material.For preventing that die from, because annealing reduces intensity, often cooling to die, conventional cooling fluid uses aquadag and water to press 1:1000 preparation for forging, this cooling fluid can play the effect to die cooling, can also play the lubrication to mould, facilitate forging demoulding, cost is also lower.
Die 3 also bears larger expansive force, require die 3 to have enough toughness, otherwise mould easily breaks.Through repeatedly practising, select 5CrMnMo mold materials, quenching hardness is defined as 42-48HRC.
Punch 2 Design of length are unsuitable little, because will guarantee forging Forming Quality, have enough importing length, the optional 40Cr of material.
Positioning sleeve 1, for the guide-localization of punch, keeps wall thickness even while making forging moulding.Its endoporus and punch 2, external diameter and die 3 all adopt matched in clearance, material selection 40 Cr, and quenching hardness is 42-48HRC.
Punch 2 volumes are little, the annealing that very easily heats up, and strength decreased, the large intensification of die 3 volume is relatively slow, in batch production process, with 2 dies, 6 punch exchange uses, is conducive to improve die life.30 forging of general every processing change die one time, and punch is changed in 5 of every processing No. one time.
Claims (5)
1. a combination closed pattern match that forges cast part method for seamless pipe, is characterized in that: comprise punch, die and positioning sleeve; Wherein, die is provided with the consistent cavity of cast forging profile axial, that have a different-diameter with two sections up and down; The profile of punch is consistent with cast forging inner chamber, and the inner of punch extends cast forging different-diameter and excessively sentences down; Positioning sleeve be one section with the torus of punch and die matched in clearance.
2. a kind of combination closed pattern match that forges cast part method for seamless pipe according to claim 1, is characterized in that: described die is the die by 5CrMnMo mold materials.
3. a kind of combination closed pattern match that forges cast part method for seamless pipe according to claim 1 and 2, is characterized in that: described punch is the punch by 40Cr mold materials.
4. a kind of combination closed pattern match that forges cast part method for seamless pipe according to claim 1 and 2, is characterized in that: described positioning sleeve is the positioning sleeve by 40Cr mold materials.
5. a kind of combination closed pattern match that forges cast part method for seamless pipe according to claim 1 and 2, is characterized in that: described die is 2, and punch is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004107.9U CN203695839U (en) | 2014-01-03 | 2014-01-03 | Combined closed-type forming die for method of forging tubular parts of seamless tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004107.9U CN203695839U (en) | 2014-01-03 | 2014-01-03 | Combined closed-type forming die for method of forging tubular parts of seamless tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203695839U true CN203695839U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420004107.9U Expired - Fee Related CN203695839U (en) | 2014-01-03 | 2014-01-03 | Combined closed-type forming die for method of forging tubular parts of seamless tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203695839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806827A (en) * | 2015-04-27 | 2015-07-29 | 湖州精锤铸锻有限公司 | Spliced sleeve four-joint forge piece and manufacturing method thereof |
| CN105562574A (en) * | 2014-11-09 | 2016-05-11 | 东风德纳车桥有限公司 | Hub axle tube forging and pressing forming process |
| CN113399611A (en) * | 2021-06-15 | 2021-09-17 | 许昌中兴锻造有限公司 | Friction press-based spline hub forging process |
-
2014
- 2014-01-03 CN CN201420004107.9U patent/CN203695839U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562574A (en) * | 2014-11-09 | 2016-05-11 | 东风德纳车桥有限公司 | Hub axle tube forging and pressing forming process |
| CN104806827A (en) * | 2015-04-27 | 2015-07-29 | 湖州精锤铸锻有限公司 | Spliced sleeve four-joint forge piece and manufacturing method thereof |
| CN104806827B (en) * | 2015-04-27 | 2017-06-09 | 湖州精锤铸锻有限公司 | Split type four-way junction of casing forging and its manufacture method |
| CN113399611A (en) * | 2021-06-15 | 2021-09-17 | 许昌中兴锻造有限公司 | Friction press-based spline hub forging process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20190103 |