CN106583485B - The manufacturing process of Big Diameter Flange cylinder - Google Patents
The manufacturing process of Big Diameter Flange cylinder Download PDFInfo
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- CN106583485B CN106583485B CN201611201563.2A CN201611201563A CN106583485B CN 106583485 B CN106583485 B CN 106583485B CN 201611201563 A CN201611201563 A CN 201611201563A CN 106583485 B CN106583485 B CN 106583485B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/20—Making uncoated products by backward extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The manufacturing process of Big Diameter Flange cylinder, including：1) after bar is heated, the first blank with the first bottom is configured to by the first process mould, the first convex portion is formed vertically upward on first bottom；2) the first blank is squeezed into by the second blank by the second process mould, wherein, the second blank includes the second bottom, and the second bottom extends vertically upwards to form second convex portion consistent with the first convex portion, and second convex portion stretches out, and forms taper convex portion；3) the taper convex portion of the second blank is squeezed into by the 3rd process mould vertical with the second convex portion, obtains preform flange, the radial dimension of preform flange reduced, other shapes are constant, obtain the 3rd blank；4) the preform flange thickness of the 3rd blank is reduced by the 4th process mould, while diameter increases, other shapes are constant, obtain required Big Diameter Flange cylinder.The Big Diameter Flange cylinder manufacturing process of the present invention, technique is simple, cost-effective.
Description
Technical field
The present invention relates to a kind of manufacturing process of Big Diameter Flange cylinder.
Background technology
In the forming process to Big Diameter Flange cylinder, because flange diameter is big, accordingly, it is difficult to shape.At present, often
Solution method is to be shaped flange, then, shapes endoporus.But so since, after endoporus shaping, 1) flange is easy
Deformation, process need to be increased shaping is carried out to flange；2) when due to shaping endoporus, will be produced in the joint portion of flange and endoporus larger
Radian, it usually needs the thickness for increasing flange and the size for reducing endoporus improve the defect.So not only lose time but also increase
Addition sheet.
The deficiency for more than, the invention provides a kind of manufacturing process of Big Diameter Flange cylinder.
The content of the invention
It is an object of the invention to provide a kind of manufacturing process of Big Diameter Flange cylinder, it can overcome above-mentioned prior art
Certain or some problems.
Signified Big Diameter Flange cylinder of the invention has rounded bottom, and it is convex that the rounded bottom forms cylindrical shape vertically upward
Edge, cylindrical flange stretch out to form Big Diameter Flange, and the diameter ratio of Big Diameter Flange and cylindrical flange is more than 1.5:
1,
The manufacturing process of the Big Diameter Flange cylinder of the present invention, including：
First process：It is the first process blank by the first process mould extrusion molding after bar is heated, wherein, should
First process blank has first bottom consistent with the rounded bottom shape of the Big Diameter Flange cylinder, and first bottom is hung down
Directly it is upwardly formed first convex portion consistent with the Big Diameter Flange cylinder shape flange；
Second process：By the first process blank extrusion molding it is the second process blank by the second process mould, wherein,
Two process blanks include second bottom consistent with the first bottom shape, and the second bottom extends vertically upwards to be formed and the first convex portion
The second consistent convex portion, second convex portion stretch out, and form taper convex portion；
3rd process：It is and the second convex portion by the taper convex portion extrusion molding of the second process blank by the 3rd process mould
Vertically, so as to obtain preform flange, the radial dimension of the preform flange is reduced, meanwhile, the second bottom and second convex
The shape in portion does not change, and obtains the 3rd process blank；
4th process：The preform flange thickness of the 3rd process blank is extruded by the 4th process mould and reduced, simultaneously
Diameter increases, and other shapes are constant, so as to obtain required Big Diameter Flange cylinder.
In one particular embodiment of the present invention, wherein, in the 3rd process, by the radial ruler of preform flange
During very little reduction, metal flow is and upward around the center wire loop of the cylinder to preform flange and the joint portion of the second convex portion
Protrusion.
In the another specific embodiment of the present invention, wherein, the cone angle of the taper convex portion of the second process blank is
120°。
In a particular embodiment of the present invention, wherein, first process mould includes the first process punch-pin, the first process
Cavity plate and the first process pushing block, wherein, the first process convex mould diameter is slightly larger than cylinder diameter, the diameter of bore of the first process cavity plate
Slightly larger than cylinder body external diameter, the first process pushing block diameter is identical with cylinder body external diameter.
In a particular embodiment of the present invention, wherein, the lubricant that the first process punch-pin uses is pitch；First work
The lubricant that sequence cavity plate uses for 70% machine oil+30% animal oil, be additionally added in every liter of lubricant 100 grams graphite powder and
50 grams of molybdenum disulfide.
In one particular embodiment of the present invention, wherein, second process mould includes the second process punch-pin, second
Process cavity plate and the second process pushing block, wherein, the top and the bottom of the second process punch-pin are all cylinder, and middle interconnecting piece is divided into cone angle
For 120 ° of cone, lower cylinder diameter is identical with cylinder diameter, and upper cylinder diameter is more than lower cylinder diameter；
The diameter of bore of second process cavity plate is slightly larger than cylinder body external diameter, and the external diameter of the second process pushing block is identical with cylinder body external diameter.
In one particular embodiment of the present invention, wherein, the 3rd process mould includes：3rd process cover half,
Three process cavity plates, lateral punch-pin, the 3rd process punch-pin and the 3rd process pushing block；3rd process cover half has coaxial upper and lower two
Part, wherein, the top is divided into briquetting, and the diameter of the briquetting is more than the flange diameter of Big Diameter Flange cylinder, under described
Part is locating shaft, and the diameter of locating shaft is slightly less than the diameter of the second process blanking inner hole, in the joint portion of briquetting and locating shaft
The recess being recessed upwards is provided with, the recess is semi-cylindrical canyon, and is distributed in a ring around the axis of positioning shaft portion；Laterally
Punch-pin is the Split type structure of more valves composition, and the outer circumference portion of lateral punch-pin is divided into 1.5 ° of cone, the bore section of lateral punch-pin
With the annular flange that height is flange thickness；3rd process punch-pin has the inner cone to be matched with the cone of lateral punch-pin,
The cone angle of the inner cone of 3rd process punch-pin is also 1.5 °；3rd process punch-pin also has endoporus, and diameter of bore is more than the 3rd
The briquetting section diameter of process punch-pin.
In one particular embodiment of the present invention, wherein, the 4th process mould includes：4th process cavity plate,
Four process punch-pin and the 4th process pushing block.4th process cavity plate has step endoporus, wherein, in the top of the 4th process cavity plate
Bore dia is identical with the flange diameter of Big Diameter Flange cylinder；The cylinder body external diameter of its underpart diameter of bore and Big Diameter Flange cylinder
It is identical；4th process punch-pin has two parts composition, wherein, the diameter of its upper part is slightly less than the flange of Big Diameter Flange cylinder
Diameter, the diameter of its underpart are slightly less than the internal diameter of Big Diameter Flange cylinder block.
In the another specific embodiment of the present invention, wherein, before the 3rd process shaping, by second process
The bottom of blank is by being water-cooled to room temperature.
The Big Diameter Flange cylinder manufacturing process of the present invention, technique is simple, can reduce the process time, cost-effective.
Brief description of the drawings
Fig. 1 shows the Big Diameter Flange cylinder of the present invention；
Fig. 2 shows that flange and endoporus joint portion have the Big Diameter Flange cylinder of big radian；
Fig. 3 shows the first process mould structural representation for shaping Big Diameter Flange cylinder of the present invention；
Fig. 4 shows the second process mould structural representation for shaping Big Diameter Flange cylinder of the present invention；
Fig. 5 shows the 3rd process mould structural representation for shaping Big Diameter Flange cylinder of the present invention；
Fig. 6 shows the 4th process mould structural representation for shaping Big Diameter Flange cylinder of the present invention.
Embodiment
The manufacturing process of Big Diameter Flange cylinder of the present invention is described in detail below in conjunction with the accompanying drawings.Those skilled in the art should
Understand, the embodiments described below is only the exemplary illustration to the present invention, and any restrictions are made not for it.
Fig. 1 shows the Big Diameter Flange cylinder of the present invention, as illustrated, the Big Diameter Flange cylinder includes having bottom
Cylinder body and flange, wherein, flange is located at the opening of cylinder body.It is straight that Big Diameter Flange cylinder as described herein typically refers to flange
Footpath is more than 1.5 with diameter of cylinder ratio:1 cylinder.Because flange diameter is much larger than cylinder block diameter, therefore, flange is difficult into
Shape.In the prior art, conventional manufacturing process is that flange is shaped by way of forward extrusion, then, shapes endoporus.But
Consequently, it is possible to after endoporus shaping, 1) flange is easily deformed, and it need to increase process and shaping is carried out to flange；2) due to shaping endoporus
When, larger radian is produced in the joint portion of flange and endoporus, Fig. 2 shows that flange and endoporus joint portion have the big of big radian
The schematic diagram of diameter flange cylinder, as illustrated, flange radian 104 is freely generated when shaping endoporus, punch-pin press-in workpiece
, therefore, its size is difficult to control.For requiring flange and the workpiece that endoporus joint portion is right angle, it usually needs increase flange
Thickness and reduce the size of endoporus, be so to waste material to remove flange radian 104 in follow-up machining,
Add cost.
Big Diameter Flange cylinder manufacturing process of the present invention, said one or multiple problems can be overcome, below
The manufacturing process of the present invention is discussed in detail by a specific embodiment.
As shown in figure 1, the flange diameter of the Big Diameter Flange cylinder is 280mm, flange thickness 15mm；Cylinder block
A diameter of 150mm, wall thickness 20mm, bottom thickness 20mm, Big Diameter Flange cylinder material are chromium-bronze.
Forming process is divided into four steps, and detailed process is as follows：
First process：
Fig. 3 shows the first process mould structural representation for shaping Big Diameter Flange cylinder of the present invention.As illustrated, the
One process mould includes the first process punch-pin 301, the first process cavity plate 302 and the first process pushing block 303, wherein, the first process
A diameter of 111mm of punch-pin 301, the diameter of bore of the first process cavity plate 302 are 151mm, the external diameter of the first process pushing block 303
It is placed in for 150mm in the first process cavity plate 302, so that in forming process, the first process punch-pin 301 of carrying is put on workpiece
Power, and after the completion of shaping, workpiece is released outside the first process cavity plate 302.
As shown in figure 3, first, by the chromium-bronze bar with isometric, a diameter of 148mm of Big Diameter Flange cylinder, heating
To 850 DEG C and after insulation, the bar is inserted in the first process cavity plate 302, passes through the backward extrusion of the first process punch-pin 301
For external diameter 151mm, wall thickness 20mm, bottom thickness 21mm the first process blank 304, then, by the first process pushing block 303,
First process blank 304 is released into the first process cavity plate 302.During extruding, the lubricant that the first process punch-pin 301 uses is drip
It is blue or green；The lubricant that first process cavity plate 302 uses is additionally added 100 in every liter of lubricant for the animal oil of 70% machine oil+30%
Gram graphite powder and 50 grams of molybdenum disulfide.
Second process：
Fig. 4 shows the second process mould structural representation for shaping Big Diameter Flange cylinder of the present invention.As illustrated, the
Two process moulds include the second process punch-pin 401, the second process cavity plate 402 and the second process pushing block 403, wherein, the second process
The bottom of punch-pin 401 be diameter 110mm cylinder, its top be diameter 230mm cylinder, the second process punch-pin 401
Middle part be connected respectively with its upper and lower part, it is 120 ° of cone to form cone angle.The diameter of bore of second process cavity plate 402
For 151mm, the external diameter of the second process pushing block 403 is placed in the second process cavity plate 402 for 150mm, in forming process, to hold
The power that the second process punch-pin 401 is put on workpiece is carried, and after the completion of shaping, workpiece is released outside the second process cavity plate 402.
As shown in figure 4, by the first process blank 304 and large flange cylinder block it is isometric to be partially disposed in the second process recessed
In mould 402, remainder is in the outside of the second process cavity plate 402, in order to shape the flange section of Big Diameter Flange cylinder.
Also as shown in figure 4, after the first process blank 304 is inserted in the second process cavity plate 402, the second process punch-pin
401 bottom is inserted in the first process blank 304 and moved downward, when the conical sections of the second process punch-pin 401 are to first
When process blank 304 applies pressure, the lower surface of the second process punch-pin 401 has been subjected to the upper surface of the second process cavity plate 402, from
And radial clearance is consistent with the wall thickness of the first process blank 304 between the second process punch-pin 401 and the second process cavity plate 402,
So, during becoming, the shape made into the first process of part blank 304 of the second process cavity plate 402 keeps constant.
After applying deformation to the first process blank 304, the first process blank 304 can be configured to the second process blank 404.Such as Fig. 4 institutes
Showing, the second process blank 404 divides for two parts, wherein, Part I is located at the bottom of the second process blank 404, and the part exists
Do not deformed in second process forming process, be external diameter 151mm, wall thickness 20mm, bottom thickness is 21mm barrel-shaped knot
Structure；Part II is located at the top of the second process blank 404, and the part is overall outside cone structure, the cone of cone
Angle is 120 °, thickness 20mm.After the backhaul of second process punch-pin 401, the second process pushing block 403 is by the second process blank 404
Release the second process cavity plate 402.Second process punch-pin 401 is not lubricated using pitch as lubricant, the second process cavity plate 402.
3rd process：
By the bottom (part not deformed in the second process) of the second process blank 404 by being water-cooled to room temperature,
The main purpose of water cooling be in order to which during flange is shaped, the bottom of the second process blank 404 can bear load, and
Shape does not change, and is prepared for post forming flange.
Fig. 5 shows the 3rd process mould structural representation for shaping Big Diameter Flange cylinder of the present invention, as illustrated, the
Three process moulds include：3rd process cover half 501, the 3rd process cavity plate 502, lateral punch-pin 505, the 3rd process punch-pin 506 and
3rd process pushing block 503.
Also as shown in figure 5, lateral punch-pin 505 is Hafu-type structure, i.e., lateral punch-pin 505 is the split knot of more valves composition
Structure, usually 3 to 5 valve.As illustrated, the outer circumference portion of lateral punch-pin 505 is divided into 1.5 ° of cone, lateral punch-pin 505 it is interior
Bore portion has the annular flange 508 that height is 20mm, and the internal diameter of annular flange 508 is 250mm.
As shown in figure 5, the 3rd process cover half 501 has coaxial upper and lower part, wherein, top is divided into briquetting, the pressure
The diameter of block is more than the flange diameter of Big Diameter Flange cylinder, and its underpart is locating shaft, and the diameter of the locating shaft is slightly less than the
The diameter of the endoporus of two process blank 404.Meanwhile as illustrated, the joint portion of briquetting and locating shaft is provided with what is be recessed upwards
Recess 507, the recess 507 are semi-cylindrical canyon, a diameter of 40mm, and are distributed in a ring around the axis of locating shaft.
As shown in figure 5, the 3rd process punch-pin 506 has the inner cone that is matched with the cone of lateral punch-pin 505, described the
The cone angle of the inner cone of three process punch-pin 506 is also 1.5 °.3rd process punch-pin 506 also has an endoporus, and diameter of bore is more than the
The briquetting diameter of three process punch-pin 501.
As shown in figure 5, after the bottom of the second process blank 404 is by being water-cooled to room temperature, by the second process blank 404
Bottom is inserted in the 3rd process cavity plate 502, and the top of the second process blank 404 is located at outside the 3rd process cavity plate 502.Now,
The locating shaft of three process cover half 501 is inserted in the endoporus of the second process blank 404, and is moved down, so as to by the second process hair
The conical section of base 404 applies downward pressure, until the conical section is depressed into horizontal level, so as to obtain preform method
It is blue.Hereafter, the distance between the lower surface of the briquetting part of the 3rd process cover half 501 and the upper surface of the 3rd process cavity plate 502 are protected
Hold in 21mm.The annular flange 508 of lateral punch-pin 505 inserts lower surface and the 3rd work of the briquetting part of the 3rd process cover half 501
Between the upper surface of sequence cavity plate 502.Now, the 3rd process punch-pin 506 moves down, and divides the lateral punch-pin 505 of valve in the 3rd process
In the presence of punch-pin 506, moved to the axis direction of the 3rd process cavity plate 502, the radial dimension of preform flange is become
Small, metal flows into the recess 507 of the 3rd process cover half 501, so as to obtain the 3rd process blank 504, wherein, in the 3rd process hair
Base 504 forms the convex portion to be matched with the recess 507 with the relevant position of recess 507.
4th process：
Fig. 6 shows the 4th process mould structural representation for shaping Big Diameter Flange cylinder of the present invention.As shown in fig. 6,
4th process mould includes：4th process cavity plate 602, the 4th process punch-pin 601 and the 4th process pushing block 603.As illustrated, the
Four process cavity plates 602 have step endoporus, wherein, top diameter of bore and the Big Diameter Flange gas of the 4th process cavity plate 602
The flange diameter of cylinder is identical；Its underpart diameter of bore is identical with the cylinder body external diameter of Big Diameter Flange cylinder.4th process punch-pin 601
Formed with two parts, wherein, the diameter of its upper part is slightly less than the flange diameter of Big Diameter Flange cylinder, its underpart it is straight
Footpath is slightly less than the internal diameter of Big Diameter Flange cylinder block.
Also as shown in fig. 6, after the 3rd process blank 504 is inserted in the 4th process cavity plate 602, the 4th process punch-pin
601 are moved downward, and the lower part of the 4th process punch-pin 601 is inserted among the endoporus of the 3rd process blank 504, the 4th process punch-pin
601 upper part applies downward pressure to the flange section of the 3rd process blank 504, by compressing the 3rd process blank 504
Convex portion, reduce the flange of Big Diameter Flange cylinder and the radian of endoporus joint portion, so as to, by the 3rd process blank 504 into
Shape is required Big Diameter Flange cylinder.
As described above, the Big Diameter Flange cylinder manufacturing process of the present invention, technique is simple, can reduce the process time, section
About cost.
Described above is only the preferred embodiments of the present invention, it is noted that for the person of ordinary skill of the art,
Without departing from the technical principles of the invention, a variety of improvement and modification can also be made, these improvement and modification should also regard
For within protection scope of the present invention.
Claims (7)
1. a kind of manufacturing process of Big Diameter Flange cylinder, wherein, the Big Diameter Flange cylinder has rounded bottom, the circle
Cylindrical flange is formed vertically upward on bottom, and cylindrical flange stretches out to form Big Diameter Flange, Big Diameter Flange and cylinder
The diameter ratio of shape flange is more than 1.5:1, the manufacturing process includes following process：
First process：It is the first process blank by the first process mould extrusion molding after bar is heated, wherein, this first
Process blank has first bottom consistent with the rounded bottom shape of the Big Diameter Flange cylinder, first bottom vertically to
It is upper to form first convex portion consistent with the Big Diameter Flange cylinder shape flange；
Second process：By the first process blank extrusion molding it is the second process blank by the second process mould, wherein, the second work
Sequence blank includes second bottom consistent with the first bottom shape, the second bottom extend vertically upwards to be formed it is consistent with the first convex portion
The second convex portion, second convex portion stretches out, and forms taper convex portion；
3rd process：By the taper convex portion extrusion molding of the second process blank it is to hang down with the second convex portion by the 3rd process mould
Directly, so as to obtain preform flange, the radial dimension of the preform flange is reduced, meanwhile, the second bottom and the second convex portion
Shape do not change, obtain the 3rd process blank；
4th process：The preform flange thickness of the 3rd process blank is extruded by the 4th process mould and reduced, while diameter
Increase, other shapes are constant, so as to obtain required Big Diameter Flange cylinder.
2. a kind of manufacturing process of Big Diameter Flange cylinder according to claim 1, wherein, will be pre- in the 3rd process
When shaping the radial dimension of flange and reducing, metal flow is to preform flange and the joint portion of the second convex portion, and around the cylinder
Center wire loop it is protruding upward.
3. a kind of manufacturing process of Big Diameter Flange cylinder according to claim 1, wherein, the taper of the second process blank
The cone angle of convex portion is 120 °.
4. a kind of manufacturing process of Big Diameter Flange cylinder according to claim 1, wherein the first process mould includes the
One process punch-pin, the first process cavity plate and the first process pushing block, wherein, the first process convex mould diameter is slightly larger than cylinder diameter, the
The diameter of bore of one process cavity plate is slightly larger than cylinder body external diameter, and the first process pushing block diameter is identical with cylinder body external diameter.
5. a kind of manufacturing process of Big Diameter Flange cylinder according to claim 1, the second process mould includes the second work
Sequence punch-pin, the second process cavity plate and the second process pushing block, wherein, the top and the bottom of the second process punch-pin are all cylinder, and centre connects
Socket part is divided into the cone that cone angle is 120 °, and lower cylinder diameter is identical with cylinder diameter, under upper cylinder diameter is more than
Portion's cylinder diameter；The diameter of bore of second process cavity plate is slightly larger than cylinder body external diameter, and the external diameter of the second process pushing block is and cylinder body
External diameter is identical.
6. a kind of manufacturing process of Big Diameter Flange cylinder according to claim 1, the 3rd process mould include：3rd work
Sequence cover half, the 3rd process cavity plate, lateral punch-pin, the 3rd process punch-pin and the 3rd process pushing block；3rd process cover half has coaxial
Upper and lower two parts, wherein, the top is divided into briquetting, and the flange that the diameter of the briquetting is more than Big Diameter Flange cylinder is straight
Footpath, the bottom are divided into locating shaft, and the diameter of locating shaft is slightly less than the diameter of the second process blanking inner hole, in briquetting and locating shaft
Joint portion be provided with the recess being recessed upwards, the recess is semi-cylindrical canyon, and around positioning shaft portion axis in a ring
Distribution；Lateral punch-pin is the Split type structure of more valves composition, and the outer circumference portion of lateral punch-pin is divided into 1.5 ° of cone, lateral punch-pin
Bore section has the annular flange that height is flange thickness；3rd process punch-pin has what is matched with the cone of lateral punch-pin
Inner cone, the cone angle of the inner cone of the 3rd process punch-pin is also 1.5 °；3rd process punch-pin also has an endoporus, and diameter of bore is big
In the briquetting section diameter of the 3rd process punch-pin.
7. a kind of manufacturing process of Big Diameter Flange cylinder according to claim 1, the 4th process mould include：4th work
Sequence cavity plate, the 4th process punch-pin and the 4th process pushing block；4th process cavity plate has step endoporus, wherein, the 4th process is recessed
The top diameter of bore of mould is identical with the flange diameter of Big Diameter Flange cylinder；Its underpart diameter of bore and Big Diameter Flange cylinder
Cylinder body external diameter it is identical；4th process punch-pin has two parts composition, wherein, the diameter of its upper part is slightly less than Big Diameter Flange
The flange diameter of cylinder, the diameter of its underpart are slightly less than the internal diameter of Big Diameter Flange cylinder block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201563.2A CN106583485B (en) | 2016-12-22 | 2016-12-22 | The manufacturing process of Big Diameter Flange cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201563.2A CN106583485B (en) | 2016-12-22 | 2016-12-22 | The manufacturing process of Big Diameter Flange cylinder |
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| CN106583485B true CN106583485B (en) | 2018-03-02 |
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| CN108620443B (en) * | 2018-03-27 | 2019-09-20 | 浙江美联智能科技有限公司 | The spindle support forming method of cladding spindle |
| DE102019134680A1 (en) * | 2019-12-17 | 2021-06-17 | Kme Germany Gmbh | Process for the production of a solder deposit and a solder deposit |
| CN116393584B (en) * | 2023-05-29 | 2023-08-04 | 镇江先锋汽车零部件有限公司 | Method for forming large chamfer angle based on die stamping |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NL6602605A (en) * | 1966-03-01 | 1967-09-04 | ||
| US3540255A (en) * | 1967-12-13 | 1970-11-17 | Lamson & Sessions Co | Method and apparatus for making hollow metal articles |
| AU475195B2 (en) * | 1973-03-22 | 1976-08-12 | Repco Research Proprietary Limited | Improvements in punching, forging and forming |
| JPS55103933A (en) * | 1979-02-06 | 1980-08-08 | Japan Steel Works Ltd:The | Molding method of large thickness portion of flanged pipe |
| JP3936230B2 (en) * | 2002-04-19 | 2007-06-27 | 日本特殊陶業株式会社 | Manufacturing method of flanged tubular metal fittings |
| CN101733350B (en) * | 2008-11-14 | 2011-06-15 | 江苏威鹰机械有限公司 | Production technology for blanking by using a through-hole type universal joint finish forging pot shell capable of moving axially |
| CN102029301B (en) * | 2010-10-22 | 2012-04-11 | 南京迪威尔重型锻造股份有限公司 | Heat backward extrusion molding process of large-sized cup-shaped piece |
| CN102357645B (en) * | 2011-08-23 | 2015-08-26 | 江苏大学 | The devices and methods therefor of round bar one step multidirectional combined shaping central flange pipe joint |
| CN104841792A (en) * | 2014-02-17 | 2015-08-19 | 苏州昆仑重型装备制造有限公司 | Molding process of reverse cylinder workpiece having flange at end |
| CN105478508A (en) * | 2014-09-19 | 2016-04-13 | 苏州昆仑重型装备制造有限公司 | Inverted extrusion molding process of high pressure cylinder and inverted extrusion die adopted in inverted extrusion molding process |
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Granted publication date: 20180302 Termination date: 20191222 |