CN108637607A - A kind of processing method of empennage frame semi-finished product - Google Patents
A kind of processing method of empennage frame semi-finished product Download PDFInfo
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- CN108637607A CN108637607A CN201810487266.1A CN201810487266A CN108637607A CN 108637607 A CN108637607 A CN 108637607A CN 201810487266 A CN201810487266 A CN 201810487266A CN 108637607 A CN108637607 A CN 108637607A
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- blank
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- frame semi
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a kind of processing methods of empennage frame semi-finished product, belong to stabilising arrangement manufacture field.The processing method of the present invention, including blanking, rough turn blank；Heating；Scale removal；Hot extrusion；Secondary lubrication；Annealing；Machine adds；Cold shaping.The method that the present invention uses the hot-cold Compound Extrusion of blank, so that the one piece of the part is consumed and is reduced to 92 kilograms by 115 kilograms, it was reduced to 16 hours by 24 hours when machining, shape is not reprocessed, and the use of numerical control bar milling cutter is reduced, and reduces cutter loss, improve production efficiency simultaneously, using the part of the method production of the cold Compound Extrusion of heat, it ensure that postorder machine adds the integrality of process metal streamline, improve the safety coefficient using process.
Description
Technical field
The present invention relates to a kind of processing methods of empennage frame semi-finished product, belong to stabilising arrangement manufacture field.
Background technology
Certain empennage frame product uses 45 steel for material, is heavy caliber, is only the thin of 4mm by design basis, wall thickness of internal diameter
Wall pieces, and shape has 24 33mm (width) × 25mm (height) polyhedron protrusions in irregular shape, total length 460mm.Usually
Heavy wall materials in the tube are selected to be formed by turning milling, not only whole manufacturing cycle length (24 hours/part), utilization rate of raw materials is low, and
And convex block need to use numerical control bar milling cutter to complete with shape connecting portion, cutter value is expensive, consuming cost height (2 handle/part).Squeeze work
Skill is to control metal flow using mold, shapes required part by a large amount of transfers of softening metal volume.When hot extrusion,
Since blank is heated to hot forging temperature, this can be such that the resistance of deformation of material is greatly lowered, can, size higher with crushing strength compared with
The problems such as big part, but due to being processed at high temperature, blank is also easy to produce oxidation, decarburization and thermally expands when heating, drop
The low dimensional accuracy and surface quality of product.And the flow harden characteristic of metal material cold deformation is utilized in cold extrusion, to
The intensity of cold-extruded part is set to greatly improve.When cold extrusion, blank surface is flattened by crunch, therefore higher ruler can be obtained
The extrusion of very little precision and smaller surface roughness.
Invention content
When processing empennage frame product the purpose of the present invention is to solve traditional handicraft, there are high processing costs, processing matter
The shortcomings of amount difference, and a kind of processing method of empennage frame semi-finished product is provided.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of processing method of empennage frame semi-finished product of the present invention, is as follows：
1) blanking, rough turn blank；
2) it heats：Heating temperature (1180 ± 5) DEG C, soaking time (210~240) min；
3) scale removal：Under conditions of temperature >=980 DEG C of blank, with high pressure water according to the suitable of first axial plane end face again
Sequence removes the oxide skin 5 minutes on blank；
4) hot extrusion：It is put into warmed-up 300 DEG C and the hot-extrusion mold of spray coated lubricant, hot-extrusion mold is equipped with storage
Hopper, and it is flat with 15-30 ° of cone angle, carry out hot extrusion using 1200 tons of hydraulic presses.
5) secondary lubrication：When empennage frame semi-finished product forming height reaches 230-260mm, lubricant is sprayed again, is ensured
Entire forming process is in lubricating status always.
6) it anneals：Moderate oven is warming up to 830 DEG C of workpiece shove charges, black furnace is packed into product after need to keeping the temperature 3 hours, is heated to
830 DEG C of ± 10 DEG C of heat preservation 2-2.5h, furnace cooling are come out of the stove air-cooled to 600 DEG C；
7) machine adds：On the basis of bottom, the end face out-of-flatness amount of oral area hot extrusion process is removed, protects overall length.
8) cold shaping：Cold shaping mould is put into 1000 tons of hydraulic presses；Mould inner surface and blank outer surface, which are smeared, to be made
The smooth medium in its surface, radial compression amount are unilateral 1.5mm, extension 15-30mm.
Operation principle
Empennage frame is in hot extrusion process, and i.e. there are Radial Flows for metal, and there is also reverse flows.The two is to vie each other
Relationship, if so that Radial Flow is more easy, it is full to indulge muscle filling, can reduce clearance between matrix and punch in hot-extrusion mold,
Under existing equipment tonnage, reduce extrusion wall thickness as far as possible, increases the diameter of hot-extrusion mold convex mould, force more metal diameters
To flowing, ensure that vertical muscle filling is full.Meanwhile cavity plate jacking block adds stock chest, solves member bottom section when hot extrusion ends and indulges muscle
Added metal deficiency problem,
Based on the large-caliber thin-walled high laborsaving Forming Theory of muscle shell, to reduce shaping load, using " secondary lubrication " technology；
Simultaneously in the case where ensureing that the when of indulging muscle filling there are enough metallic radial amount of flow, in punch design, 15-30 ° of cone of design band is considered
Angle flat-bottomed punch.
Not full can be used of oral area metal filling goes small strain area i.e. volume compensation method.Volume compensation method is i.e. by increasing base
Material, the appropriate height for increasing forging, follow-up machine cut off oral area in adding.Volume compensation method although increasing raw material usage,
Reduce extrusion process.
Advantageous effect
The method that the present invention uses the hot-cold Compound Extrusion of blank makes the one piece of the part consume and is dropped by 115 kilograms
As low as 92 kilograms, when machining, was reduced to 16 hours by 24 hours, and shape is not reprocessed, and the use of numerical control bar milling cutter is reduced,
Cutter loss is reduced, improves production efficiency simultaneously, the part produced using the method for hot-cold Compound Extrusion, after ensure that
Sequence machine adds the integrality of process metal streamline, improves the safety coefficient using process.
Description of the drawings
Fig. 1 is the empennage frame semi-finished product schematic diagram of the method for the present invention processing.
Specific implementation mode
Present disclosure is further described with reference to the accompanying drawings and examples：
Embodiment
A kind of processing method of empennage frame semi-finished product of the present invention, is as follows：
1) blanking, rough turn blank：Blank size is 250, and rough turn blank dimension is extremely Under
The blank for expecting size >=200, can circulate by normal procedure, preferentially be used as subsequent sample sample；
2) it heats：Heating temperature (1180 ± 5) DEG C, soaking time (210~240) min；
3) scale removal：Under conditions of temperature >=980 DEG C of blank, with high pressure water according to the suitable of first axial plane end face again
Sequence removes the oxide skin 5 minutes on blank；
4) hot extrusion：It is put into warmed-up 300 DEG C and the hot-extrusion mold of spray coated lubricant, hot-extrusion mold is equipped with storage
Hopper, and it is flat with 15-30 ° of cone angle, carry out hot extrusion using 1200 tons of hydraulic presses.
5) secondary lubrication：When empennage frame semi-finished product forming height reaches 230-260mm, lubricant is sprayed again, is ensured
Entire forming process is in lubricating status always.
6) it anneals：Moderate oven is warming up to 830 DEG C of workpiece shove charges (black furnace refills after need to keeping the temperature 3 hours), is heated to 830 DEG C
± 10 DEG C of heat preservation 2-2.5h, furnace cooling are come out of the stove air-cooled to 600 DEG C.Per smelting furnace, optional one is used as mechanical property test sample
Product (interception oral area about 150mm long sample presentations, remainder by normal procedure circulate, as it is cold it is whole after sampling sample), sample by
Muscle position is longitudinally cut, and the mechanical property requirements of sample are：Rm >=560MPa, A >=15%.Sample mechanical property is qualified, then recognizes
Batch work-piece heat treatment is qualified thus, otherwise it is assumed that unqualified.Underproof workpiece allows to do over again, and number of doing over again is unlimited.
7) machine adds：On the basis of bottom, the end face out-of-flatness amount of oral area hot extrusion process is removed, protects overall length.
8) cold shaping：Cold shaping mould is put into 1000 tons of hydraulic presses；Mould inner surface and blank outer surface, which are smeared, to be made
The smooth medium in its surface, radial compression amount are unilateral 1.5mm, extension 15-30mm.
Claims (1)
1. a kind of processing method of empennage frame semi-finished product, feature are as follows：
1) blanking, rough turn blank；
2) it heats：Heating temperature (1180 ± 5) DEG C, soaking time (210~240) min；
3) scale removal：Under conditions of temperature >=980 DEG C of blank, with high pressure water according to the sequence of first axial plane end face again,
Oxide skin on removal blank 5 minutes；
4) hot extrusion：It is put into warmed-up 300 DEG C and the hot-extrusion mold of spray coated lubricant, hot-extrusion mold is equipped with storing
Slot, and it is flat with 15-30 ° of cone angle, carry out hot extrusion using 1200 tons of hydraulic presses；
5) secondary lubrication：When empennage frame semi-finished product forming height reaches 230-260mm, lubricant is sprayed again, is ensured entire
Forming process is in lubricating status always；
6) it anneals：Moderate oven is warming up to 830 DEG C of workpiece shove charges, black furnace is packed into product after need to keeping the temperature 3 hours, is heated to 830 DEG C
± 10 DEG C of heat preservation 2-2.5h, furnace cooling are come out of the stove air-cooled to 600 DEG C；
7) machine adds：On the basis of bottom, the end face out-of-flatness amount of oral area hot extrusion process is removed, protects overall length；
8) cold shaping：Cold shaping mould is put into 1000 tons of hydraulic presses；Mould inner surface and blank outer surface, which are smeared, makes its table
The smooth medium in face, radial compression amount are unilateral 1.5mm, extension 15-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810487266.1A CN108637607A (en) | 2018-05-21 | 2018-05-21 | A kind of processing method of empennage frame semi-finished product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810487266.1A CN108637607A (en) | 2018-05-21 | 2018-05-21 | A kind of processing method of empennage frame semi-finished product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108637607A true CN108637607A (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810487266.1A Pending CN108637607A (en) | 2018-05-21 | 2018-05-21 | A kind of processing method of empennage frame semi-finished product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293380A (en) * | 2019-07-30 | 2019-10-01 | 深圳市百骏胜科技有限公司 | A kind of processing method of aluminium extruded type lampshade |
| CN118664054A (en) * | 2024-07-02 | 2024-09-20 | 兰州理工大学 | Novel tail wing structure manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3187531A (en) * | 1962-06-21 | 1965-06-08 | Cairns John Harper | Extrusion of metals |
| CN102816958A (en) * | 2012-08-23 | 2012-12-12 | 东北轻合金有限责任公司 | Manufacturing method of aluminum alloy hollow section for aircraft empennage |
| CN104014604A (en) * | 2014-05-28 | 2014-09-03 | 晋西工业集团有限责任公司 | Method for processing steel empennage rack |
| CN105108457A (en) * | 2015-09-08 | 2015-12-02 | 丹阳市恒基工具有限公司 | Processing method of overall passive plate |
-
2018
- 2018-05-21 CN CN201810487266.1A patent/CN108637607A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3187531A (en) * | 1962-06-21 | 1965-06-08 | Cairns John Harper | Extrusion of metals |
| CN102816958A (en) * | 2012-08-23 | 2012-12-12 | 东北轻合金有限责任公司 | Manufacturing method of aluminum alloy hollow section for aircraft empennage |
| CN104014604A (en) * | 2014-05-28 | 2014-09-03 | 晋西工业集团有限责任公司 | Method for processing steel empennage rack |
| CN105108457A (en) * | 2015-09-08 | 2015-12-02 | 丹阳市恒基工具有限公司 | Processing method of overall passive plate |
Non-Patent Citations (1)
| Title |
|---|
| 祁威: "钢质外纵筋筒热—冷复合挤压成型研究", 《中国优秀硕士学位论文全文库，工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293380A (en) * | 2019-07-30 | 2019-10-01 | 深圳市百骏胜科技有限公司 | A kind of processing method of aluminium extruded type lampshade |
| CN118664054A (en) * | 2024-07-02 | 2024-09-20 | 兰州理工大学 | Novel tail wing structure manufacturing method |
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Application publication date: 20181012 |