CN109572983A - TC4 titanium alloy tailstock cover plate and processing method thereof - Google Patents
TC4 titanium alloy tailstock cover plate and processing method thereof Download PDFInfo
- Publication number
- CN109572983A CN109572983A CN201811655551.6A CN201811655551A CN109572983A CN 109572983 A CN109572983 A CN 109572983A CN 201811655551 A CN201811655551 A CN 201811655551A CN 109572983 A CN109572983 A CN 109572983A
- Authority
- CN
- China
- Prior art keywords
- cover board
- titanium alloy
- tailstock cover
- tailstock
- circular hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 37
- 238000003672 processing method Methods 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 210000005069 ears Anatomy 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C5/00—Stabilising surfaces
-
- 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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/01—Aircraft parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C2001/0045—Fuselages characterised by special shapes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a TC4 titanium alloy tailstock cover plate, which comprises: a tailstock cover plate body; the center circular hole is formed in the center of the tailstock cover plate body and is provided with an inner circular ring surface 1 and an outer circular ring surface 3; the key groove 2 is formed in the inner circular ring surface 1 of the central circular hole; the two lug parts are respectively and symmetrically fixedly connected to two sides of the tailstock cover plate body; the peripheral circular holes 4 are formed in the two ear parts; and the inclined planes 5 are respectively arranged at any one of the two lug parts and the adjacent edge of one end of the tail seat cover plate body connected with each other. According to the embodiment of the invention, the TC4 titanium alloy material is adopted, so that the weight of the airplane is reduced, and the strength is increased; in addition, the shapes and positions of the circular inner ring, the key groove, the outer circular arc, the circular hole and the inclined plane are reasonably designed, so that the titanium alloy tailstock cover plate is firmly combined with other metal materials, and the service life of the structural part is prolonged.
Description
Technical field
The present invention relates to non-ferrous metals processing field more particularly to a kind of TC4 titanium alloy tailstock cover board and its processing methods.
Background technique
A kind of alpha-beta type diphasic titanium alloy of moderate strength of TC4 titanium alloy is stablized containing 6% α stable element and 4% β
Element, the performances such as the density which possesses is small, specific strength is high, preferable high temperature resistance comply fully with the enhancing of aircraft manufacturing loss of weight
Manufacture requirement, in the update of civil and military aircraft at home and abroad, titanium alloy proportion is also being continuously increased.
With preferable fatigue behaviour and fracture property, forging, casting or extrusion can be made.It can be used for fuselage, engine cabin, rise
Fall the manufacture at the positions such as frame, wing, empennage bezel, fin keel.Therefore, TC4 titanium alloy obtains in aerospace industry
It is widely applied.
TC4 titanium alloy is smaller than steel density by 40%, and the intensity of titanium and steel is suitable, and structure efficiency can be improved in this.Meanwhile
The heat resistance of titanium, corrosion resistance, elasticity, elastoresistance and shaping processability are good.TC4 titanium alloy can be compared with other materials, mainly
Have following several respects advantage: 1) Aircraft Quality can be substantially reduced by substituting steel and nickel base superalloy.High thrust ratio allows titanium alloy energy
It enough substitutes intensity slightly good steel and is used in airplane component.2) it can satisfy strength of aircraft requirement.Compared with aluminium alloy, 60%
The titanium alloy of left and right quality can reach identical intensity.3) high specific strength can satisfy keyway and other metal structures
The bond strength requirement of part.
Summary of the invention
At least one purpose of the invention is to propose a kind of TC4 titanium alloy tailstock cover board and its processing method, can be reached
Loss of weight enhancing, the manufacture requirement of raising structure efficiency during aircraft manufacturing.It is excellent in many technical solutions provided by the invention
Many technical effects elaboration as detailed below that selecting technology scheme can be generated.
To achieve the above object, the present invention provides following technical schemes:
A kind of TC4 titanium alloy tailstock cover board provided by the invention, comprising: tailstock cover board body；Center hole is opened in institute
The center of tailstock cover board body is stated, the center hole has inner circle ring surface and outer circle ring surface；Keyway is opened in described
The inner circle ring surface of center hole；Liang Ge ear respectively symmetrically is fixedly connected on the two sides of the tailstock cover board body；
Peripheral circular hole is opened in described two ears；And inclined-plane, it is any with the tailstock lid to be respectively arranged at described two ears
Plate ontology is connected the adjacent side of one end.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
The end face of bevel edge and the tailstock cover board body is in 45 ° of angles.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Line between Liang Ge ear passes through the center line of the keyway.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Peripheral circular hole is four, is set to the ear two-by-two, and two opened up on described two ears are any are described outer
Circular hole is enclosed, is axisymmetricly distributed with the center line of the keyway.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Pass through to chamfered portion the peripheral circular hole.
The present invention also provides a kind of processing method of TC4 titanium alloy tailstock cover board according to claim 5, packets
Include: turning TC4 titanium alloy rod bar blank keeps the rodlike blank end face smooth, and shows tailstock cover board body and two ears
The contour structures of integrally；Drill hole processing center circular hole；By wire cutting mode the center hole inner circle ring surface
Process keyway；The outer circle ring surface of the center hole is processed by wire cutting mode；Periphery circular hole described in Milling Process, and make
Center line of the periphery circular hole two-by-two relative to the processing keyway is symmetrical；Milling Process inclined-plane, and make the inclined-plane and institute
The end face of tailstock cover board body is stated in 45 ° of angles.
Based on the above-mentioned technical proposal, the embodiment of the present invention subtracts the weight of aircraft by using TC4 titanium alloy material
Gently, and increase intensity；Furthermore by rationally designing circle interior annular, keyway, external arc, the shape in circular hole, inclined-plane
With position, raising titanium alloy tailstock cover board is firm in conjunction with other metal materials, the service life of extending structure part.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of TC4 titanium alloy tailstock cover board schematic perspective view provided by the embodiment of the present invention；
Fig. 2 is a kind of TC4 titanium alloy tailstock cover board depression angle structural schematic diagram provided by the embodiment of the present invention；
Fig. 3 be a kind of TC4 titanium alloy tailstock cover board provided by the embodiment of the present invention along Fig. 2 A-A to section view angle knot
Structure schematic diagram；
Appended drawing reference: 1, inner circle ring surface, 2, keyway, 3, outer circle ring surface, 4, peripheral circular hole 4,5, inclined-plane.
Specific embodiment
It is referred to attached drawing below and word content understands between the contents of the present invention and the present invention and the prior art
Distinctive points.Hereafter attached drawing and by way of enumerating some alternative embodiments of the invention, to technical solution of the present invention
(including optimal technical scheme) is described in further detail.
It should be understood that any technical characteristic, any technical solution in the present embodiment are the technologies of plurality of optional
One or more of feature or optional technical solution, in order to describe it is succinct need it is impossible to exhaust of the invention in this document
All alternative technical characteristics and alternative technical solution, the embodiment for being also not easy to each technical characteristic are emphasized
It is one of for optional numerous embodiments, so those skilled in the art will appreciate that can will be provided by the invention any
Technological means is replaced or any two or more technical means or technical features provided by the invention is carried out mutually group
It closes and obtains new technical solution.
Any technical characteristic and any technical solution in the present embodiment do not limit the scope of the invention, this hair
Bright protection scope should include that those skilled in the art do not make the creative labor the thinkable any alternate embodiments of institute
And any two or more technical means or technical features provided by the invention are carried out mutually group by those skilled in the art
New technical solution obtained from conjunction.
1~3 pair of technical solution provided by the invention is illustrated in more detail with reference to the accompanying drawing.
As shown in Figures 1 to 3, a kind of TC4 titanium alloy tailstock cover board provided by the invention, comprising: tailstock cover board body；Center
Circular hole, is opened in the center of the tailstock cover board body, and the center hole has inner circle ring surface 1 and outer circle ring surface 3；
Keyway 2 is opened in the inner circle ring surface 1 of the center hole；Liang Ge ear respectively symmetrically is fixedly connected on the tail
The two sides of seat cover board body；Peripheral circular hole 4, is opened in described two ears；And inclined-plane 5, it is respectively arranged at described two
The adjacent side of any one end that is connected with the tailstock cover board body of ear.
By the way that the inclined-plane 5 is arranged, the invention enables titanium alloy tailstock cover boards to be in contact with the inclined-plane of other structures part, changes
Line contact scheme is face contact scheme, so that the combination between titanium alloy tailstock cover board and other metal materials is stronger.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
The end face of bevel edge and the tailstock cover board body is in 45 ° of angles.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Line between Liang Ge ear passes through the center line of the keyway 2.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Peripheral circular hole 4 is four, is set to the ear two-by-two, and two opened up on described two ears are any are described outer
Circular hole 4 is enclosed, is axisymmetricly distributed with the center line of the keyway 2.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Inclined-plane 5 is partially across the peripheral circular hole 4.
It to guarantee that the relative position of the peripheral circular hole 4 does not change, is designed by structure, allows 5 portion of inclined-plane
Divide ground by the peripheral circular hole 4, while the intensity of the peripheral circular hole 4 is met the requirements.
The present invention also provides a kind of processing method of TC4 titanium alloy tailstock cover board according to claim 5, packets
Include: turning TC4 titanium alloy rod bar blank keeps the rodlike blank end face smooth, and shows tailstock cover board body and two ears
The contour structures of integrally；Drill hole processing center circular hole；By wire cutting mode the center hole inner circle ring surface 1
Process keyway 2；The outer circle ring surface 3 of the center hole is processed by wire cutting mode；Periphery circular hole 4 described in Milling Process,
And keep center line of the peripheral circular hole 4 two-by-two relative to the processing keyway 2 symmetrical；Milling Process inclined-plane 5, and make described oblique
Face 5 and the end face of the tailstock cover board body are in 45 ° of angles.
Based on the above-mentioned technical proposal, the embodiment of the present invention subtracts the weight of aircraft by using TC4 titanium alloy material
Gently, and increase intensity；Furthermore by rationally designing circle interior annular, keyway, external arc, the shape in circular hole, inclined-plane
With position, raising titanium alloy tailstock cover board is firm in conjunction with other metal materials, the service life of extending structure part.
Any technical solution disclosed in aforementioned present invention unless otherwise stated, if it discloses numberical range,
Disclosed numberical range is preferred numberical range, and any it should be appreciated by those skilled in the art preferred numberical ranges
The only obvious or representative numerical value of technical effect in many enforceable numerical value.It, can not since numerical value is more
Exhaustion, so the present invention just discloses technical solution of the component values to illustrate the present invention, also, the above-mentioned numerical value enumerated is not
The limitation to the invention protection scope should be constituted.
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate in description and is distinguished components as not having Stated otherwise
Outside, above-mentioned word has no special meaning.
Meanwhile if aforementioned present invention discloses or relates to the components or structural member of connection fastened to each other, except another
There is statement outer, is fixedly connected it is to be understood that connection (such as using bolt or screw connection) can be removedly fixed, it can also be with
Understand are as follows: non-removable to be fixedly connected with (such as riveting, welding), certainly, connection fastened to each other or integral structure
(such as manufacturing using casting technique is integrally formed) is replaced (obviously can not be using except integrally formed technique).
In addition, for indicating the art of positional relationship or shape applied in any technical solution disclosed in aforementioned present invention
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.Either component provided by the invention
Either being assembled by multiple individual component parts, or the separate part that integrally formed technique manufactures.
In the description of the present invention if used term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", " left side ",
" right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" etc., then the orientation or positional relationship of above-mentioned term instruction is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified equipment, mechanism, component or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limiting the scope of the invention.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (6)
1. a kind of TC4 titanium alloy tailstock cover board characterized by comprising
Tailstock cover board body；
Center hole, is opened in the center of the tailstock cover board body, and the center hole has inner circle ring surface (1) and outer
Ring textures (3)；
Keyway (2) is opened in the inner circle ring surface (1) of the center hole；
Liang Ge ear respectively symmetrically is fixedly connected on the two sides of the tailstock cover board body；
Peripheral circular hole (4), is opened in described two ears；And
Inclined-plane (5) is respectively arranged at the adjacent side of any one end that is connected with the tailstock cover board body of described two ears.
2. a kind of TC4 titanium alloy tailstock cover board according to claim 1, which is characterized in that the bevel edge and the tailstock
The end face of cover board body is in 45 ° of angles.
3. a kind of TC4 titanium alloy tailstock cover board according to claim 2, which is characterized in that between described two ears
Line passes through the center line of the keyway (2).
4. a kind of TC4 titanium alloy tailstock cover board according to claim 3, which is characterized in that the periphery circular hole (4) is four
It is a, it is set to the ear two-by-two, and two opened up on described two ears the are any peripheral circular hole (4), with
The center line of the keyway (2) is axisymmetricly distributed.
5. a kind of TC4 titanium alloy tailstock cover board according to claim 4, which is characterized in that the inclined-plane (5) is partly worn
Cross the peripheral circular hole (4).
6. a kind of processing method of TC4 titanium alloy tailstock cover board according to claim 5 characterized by comprising
Turning TC4 titanium alloy rod bar blank keeps the rodlike blank end face smooth, and shows tailstock cover board body and two ears
The contour structures of integrally；
Drill hole processing center circular hole；
Inner circle ring surface (1) by wire cutting mode in the center hole processes keyway (2)；
The outer circle ring surface (3) of the center hole is processed by wire cutting mode；
Periphery circular hole (4) described in Milling Process, and make the peripheral circular hole (4) two-by-two relative in the processing keyway (2)
Heart line is symmetrical；
Milling Process inclined-plane (5), and make the inclined-plane (5) and the end face of the tailstock cover board body in 45 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811655551.6A CN109572983A (en) | 2018-12-31 | 2018-12-31 | TC4 titanium alloy tailstock cover plate and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811655551.6A CN109572983A (en) | 2018-12-31 | 2018-12-31 | TC4 titanium alloy tailstock cover plate and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109572983A true CN109572983A (en) | 2019-04-05 |
Family
ID=65915723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811655551.6A Pending CN109572983A (en) | 2018-12-31 | 2018-12-31 | TC4 titanium alloy tailstock cover plate and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109572983A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512192A (en) * | 1938-07-30 | 1939-08-30 | Short Brothers Rochester & Bedford Ltd | A new or improved inspection cover for aircraft wings, flotation bodies or other aerodynamical surfaces |
| CN101498371A (en) * | 2009-03-18 | 2009-08-05 | 托肯恒山科技（广州）有限公司 | Sealing structure for circular tube passing wall |
| CN203783117U (en) * | 2014-04-15 | 2014-08-20 | 湖南金峰金属构件有限公司 | Spigot-and-socket and keyway type adjustable jacking |
| CN204458897U (en) * | 2014-12-24 | 2015-07-08 | 新昌县捷马农机科技有限公司 | A kind of clutch pack for cultivator |
| CN204587298U (en) * | 2015-04-02 | 2015-08-26 | 中航飞机股份有限公司西安飞机分公司 | A kind of adjustable bolt mechanism |
| CN106078104A (en) * | 2016-06-29 | 2016-11-09 | 洛阳奇瑞机械科技有限公司 | A kind of machine-tooled method of Aircraft Air gondola fork |
| CN107813112A (en) * | 2017-11-29 | 2018-03-20 | 常州奥斯迈医疗器械有限公司 | Posterior cervical enabling board machining process |
| CN207204231U (en) * | 2017-08-31 | 2018-04-10 | 浙江浙矿重工股份有限公司 | A kind of hammer for hammer crusher support |
| CN207931481U (en) * | 2018-03-07 | 2018-10-02 | 合肥万瑞汽车零部件有限公司 | Fuel tank partitioner |
| CN209870714U (en) * | 2018-12-31 | 2019-12-31 | 陕西航宇有色金属加工有限公司 | TC4 titanium alloy tailstock cover plate |
-
2018
- 2018-12-31 CN CN201811655551.6A patent/CN109572983A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512192A (en) * | 1938-07-30 | 1939-08-30 | Short Brothers Rochester & Bedford Ltd | A new or improved inspection cover for aircraft wings, flotation bodies or other aerodynamical surfaces |
| CN101498371A (en) * | 2009-03-18 | 2009-08-05 | 托肯恒山科技（广州）有限公司 | Sealing structure for circular tube passing wall |
| CN203783117U (en) * | 2014-04-15 | 2014-08-20 | 湖南金峰金属构件有限公司 | Spigot-and-socket and keyway type adjustable jacking |
| CN204458897U (en) * | 2014-12-24 | 2015-07-08 | 新昌县捷马农机科技有限公司 | A kind of clutch pack for cultivator |
| CN204587298U (en) * | 2015-04-02 | 2015-08-26 | 中航飞机股份有限公司西安飞机分公司 | A kind of adjustable bolt mechanism |
| CN106078104A (en) * | 2016-06-29 | 2016-11-09 | 洛阳奇瑞机械科技有限公司 | A kind of machine-tooled method of Aircraft Air gondola fork |
| CN207204231U (en) * | 2017-08-31 | 2018-04-10 | 浙江浙矿重工股份有限公司 | A kind of hammer for hammer crusher support |
| CN107813112A (en) * | 2017-11-29 | 2018-03-20 | 常州奥斯迈医疗器械有限公司 | Posterior cervical enabling board machining process |
| CN207931481U (en) * | 2018-03-07 | 2018-10-02 | 合肥万瑞汽车零部件有限公司 | Fuel tank partitioner |
| CN209870714U (en) * | 2018-12-31 | 2019-12-31 | 陕西航宇有色金属加工有限公司 | TC4 titanium alloy tailstock cover plate |
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Application publication date: 20190405 |
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