CN107263021A - A kind of duplex forging moulding process of sliding sleeve - Google Patents
A kind of duplex forging moulding process of sliding sleeve Download PDFInfo
- Publication number
- CN107263021A CN107263021A CN201710320458.9A CN201710320458A CN107263021A CN 107263021 A CN107263021 A CN 107263021A CN 201710320458 A CN201710320458 A CN 201710320458A CN 107263021 A CN107263021 A CN 107263021A
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- China
- Prior art keywords
- bar
- blank
- shaped blank
- finished product
- forging
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Classifications
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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
-
- 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
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
Abstract
The present invention proposes a kind of duplex forging moulding process of sliding sleeve, and it includes：Blanking：Prepare bar-shaped blank；Base：The oxide skin and blind crack of bar-shaped blank surface are removed using lathe；Warm forging is just squeezed：By bar-shaped blank heating to predetermined temperature, then bar-shaped blank is put into positive extruding mold and the upper end of the bar-shaped blank just squeeze；Warm forging jumping-up：Bar-shaped blank is put into heading die and to the upper end jumping-up of the bar-shaped blank, bar-shaped blank is squeezed into the blank that upper end is formed with contouring head；Warm forging is counter to squeeze：Blank is put into anti-extruding mold and squeezed to the head of the blank is counter, the first finished product that upper end is formed with hollow head is extruded into by blank is counter；Cold forging tube reducing：First finished product is put into the tube reducing mould with the 4th predetermined shape and diameter reducing extrusion is carried out to the bar portion of the just finished product；Cold forging finishing：Finishing is carried out to the hollow head of the just finished product, finished product is obtained.
Description
Technical field
The present invention relates to the duplex forging moulding process that vehicle component forges field, specifically a kind of sliding sleeve.
Background technology
Sliding sleeve part is a kind of conventional auto parts and components, as shown in figure 1, it illustrates a kind of typical automobile sliding external member
Structure, it includes being formed with inner chamber in thicker hollow head (housing) 1 and thinner bar portion 2, the hollow head 1 in head
3。
Sliding sleeve part typically passes through mould forging molding.Moulding process of the prior art is deposited：The hollow head of sliding sleeve is by temperature
Forging extruding one-shot forming, bar portion then passes through multiple cold forging extrusion forming.There is following technical problem in it：1st, the material on hollow head
Mobility not enough, causes the formed precision on hollow head poor；2nd, bar portion is extruded through multiple cold forging, its internal easily generation metal
The risk of streamline fracture；3rd, multiple cold forging extruding must cause the inner chamber on hollow head to be formed along with multiple stress relief annealing
Decarburization.
The content of the invention
In order to solve the above technical problems, the present invention proposes a kind of duplex forging moulding process of sliding sleeve, its technical scheme
It is as follows：
A kind of duplex forging moulding process of sliding sleeve, it is characterised in that：It comprises the following steps：
Blanking：Prepare bar-shaped blank；
Base：The oxide skin and blind crack of bar-shaped blank surface are removed using lathe, is obtained with high-quality surface
Bar-shaped blank；
Warm forging is just squeezed：By bar-shaped blank heating to predetermined temperature, then bar-shaped blank is put into the first predetermined shape
Positive extruding mold in and the upper end of the bar-shaped blank is carried out just to squeeze so that the upper end of bar-shaped blank is thicker；
Warm forging jumping-up：Bar-shaped blank is put into the heading die with the second predetermined shape and to the bar-shaped blank
Upper end jumping-up, the blank that upper end is formed with contouring head is squeezed into by bar-shaped blank；
Warm forging is counter to squeeze：Blank is put into the anti-extruding mold with the 3rd predetermined shape and the head of the blank is carried out
It is anti-to squeeze, the first finished product that upper end is formed with hollow head is extruded into by blank is counter；
Cold forging tube reducing：Under normal temperature condition, first finished product is put into the tube reducing mould with the 4th predetermined shape and to described
The bar portion of first finished product carries out diameter reducing extrusion, its length is reached predetermined value；
Cold forging finishing：Under normal temperature condition, finishing is carried out to the hollow head of the just finished product, finished product is obtained.
In a specific embodiment, the base step and the warm forging also comprise the following steps between just squeezing step：
Ball blast is cleaned：Ball blast cleaning is carried out to the surface of bar-shaped blank using Shotblast cleaning machine, to increase bar-shaped blank
Surface area,
Coating：Coating treatment is carried out to the bar-shaped blank cleaned by ball blast so that the surface uniform fold of bar-shaped blank
One layer of graphite.
In a specific embodiment, the warm forging instead squeeze also include between step and the cold forging reducing step it is as follows
Step：
Stress relief annealing：Stress relief annealing is carried out to the first finished product of acquisition using annealing furnace, to remove the inside of first finished product
Stress；The temperature control of the stress relief annealing is：Three heating zones are set gradually in annealing furnace, the just finished product leads to successively
The first heating zone, the second heating zone and the 3rd heating zone are crossed, the heating-up temperature of the first heating zone is 680 DEG C -700 DEG C, and second adds
Hot-zone heating-up temperature is 660-680 DEG C, and the 3rd heating zone heating-up temperature is 640-660 DEG C, and total heat time control is 1.5-1.8
Hour, furnace cooling afterwards to natural cooling of coming out of the stove after 640 DEG C；
Ball blast is cleaned：Ball blast cleaning is carried out to the first finished product after stress relief annealing using Shotblast cleaning machine, to increase
The surface area of first finished product；
Surface phospholeum：Surface phosphorus saponification process is carried out to the first finished product after ball blast is cleaned, to cause its surface shape
Into layer protective layer, wherein, the proportioning of each groove solution in the phosphorus saponification treatment step is：Concentration of caustic soda in degreasing bath is
40-60 g/l；Sulfuric acid concentration in descaling bath is 10%-20%；Total acidity is 40-55 points in Phosphating Slot；Saponification in soap tank
Liquid concentration is 1.5-2.5 points.
In a specific embodiment, the predetermined temperature that the warm forging is just being squeezed in step is 720 DEG C.
Compared with the duplex forging moulding process of sliding sleeve of the prior art, the duplex forging of sliding sleeve proposed by the present invention into
Type technique has following significantly technique effect：1st, hollow three warm forging extrusion formings in head, improve the shaping on hollow head
Precision；2nd, bar portion is molded through cold forging tube reducing, can effectively prevent its internal material formation forging defect.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needing to make described in embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also obtain other according to these accompanying drawings
Accompanying drawing.Wherein：
Fig. 1 is a kind of structural representation of sliding sleeve；
Product form variation diagram in the duplex forging moulding process for the sliding sleeve that Fig. 2 provides for the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Fig. 2 is refer to, in a specific embodiment, the duplex forging moulding process for the sliding sleeve that the present invention is provided is included such as
Lower step：
1st, blanking：20CrMnTi round steel sawings are taken, bar-shaped blank 2a is formed.
2nd, base：The oxide skin and blind crack of bar-shaped blank surface are removed using lathe, obtaining has high-quality surface
Bar-shaped blank 2b.
3rd, ball blast is cleaned：Ball blast cleaning is carried out to bar-shaped blank 2b surface using Shotblast cleaning machine, to increase bar-shaped base
Expect 2b surface area.
4th, coating：Coating treatment is carried out to the bar-shaped blank 2b cleaned by ball blast so that bar-shaped blank 2b surface is equal
One layer of graphite of even covering.
5th, warm forging is just squeezed：Bar-shaped blank 2b is heated to 720 DEG C using intermediate-frequency heating furnace, then bar-shaped blank 2b is put into
Carry out just squeezing in positive extruding mold with the first predetermined shape and to the upper end of the bar-shaped blank, obtain thicker bar-shaped in upper end
Blank 2c.
6th, warm forging jumping-up：Bar-shaped blank 2c is had in the heading die of the second predetermined shape and to the bar-shaped blank 2c
Upper end jumping-up, bar-shaped blank 2c is squeezed into the blank 2d that upper end is formed with contouring head；
7th, warm forging is counter squeezes：Blank 2c is put into the anti-extruding mold with the 3rd predetermined shape and to the head of the blank 2c
Portion is counter to be squeezed, and is extruded into the first finished product 2e that upper end is formed with hollow head by blank 2c is counter；
8th, stress relief annealing：Stress relief annealing is carried out to the first finished product 2e of acquisition using annealing furnace, to remove just finished product 2e
Internal stress；The temperature control of the stress relief annealing is：Three heating zones, the just finished product are set gradually in annealing furnace
2e passes sequentially through the first heating zone, the second heating zone and the 3rd heating zone, and the heating-up temperature of the first heating zone is 680 DEG C -700
DEG C, the second heating zone heating-up temperature is 660-680 DEG C, and the 3rd heating zone heating-up temperature is 640-660 DEG C, total heat time control
For 1.5-1.8 hours, furnace cooling afterwards to natural cooling of coming out of the stove after 640 DEG C；
9th, ball blast is cleaned：Ball blast cleaning is carried out to the first finished product 2e after stress relief annealing using Shotblast cleaning machine, with
The first finished product 2e of increase surface area；
10th, surface phospholeum：Surface phosphorus saponification process is carried out to the first finished product 2e after ball blast is cleaned, to cause its table
Face forms layer protective layer, wherein, the proportioning of each groove solution in the phosphorus saponification treatment step is：Caustic soda in degreasing bath is dense
Spend for 40-60 g/l；Sulfuric acid concentration in descaling bath is 10%-20%；Total acidity is 40-55 points in Phosphating Slot；In soap tank
Saponification liquor concentration is 1.5-2.5 points.
11st, cold forging tube reducing：Under normal temperature condition, it is in the tube reducing mould with the 3rd predetermined shape and right that first finished product 2e is put into
The bar portion of the just finished product 2e carries out diameter reducing extrusion, obtains the first finished product 2f of the bar portion with predetermined length.
12nd, cold forging finishing：Under normal temperature condition, finishing is carried out to the hollow head of the just finished product 2f, finished product is obtained
2g。
Compared with the duplex forging moulding process of sliding sleeve of the prior art, the duplex forging of sliding sleeve proposed by the present invention into
Type technique has following significantly technique effect：1st, hollow three warm forging extrusion formings in head, improve the shaping on hollow head
Precision；2nd, bar portion is molded through cold forging tube reducing, can effectively prevent its internal material formation forging defect.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in art
Personnel are it should be understood that what the description in embodiment was merely exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change should all belong to protection scope of the present invention.Scope of the present invention is by described power
What sharp claim was defined, rather than limited by the foregoing description in embodiment.
Claims (4)
1. a kind of duplex forging moulding process of sliding sleeve, it is characterised in that：It comprises the following steps：
Blanking：Prepare bar-shaped blank；
Base：The oxide skin and blind crack of bar-shaped blank surface are removed using lathe, obtains bar-shaped with high-quality surface
Blank；
Warm forging is just squeezed：By bar-shaped blank heating to predetermined temperature, then bar-shaped blank is put into the first predetermined shape just
In extruding mold and to the upper end of the bar-shaped blank just squeeze so that the upper end of bar-shaped blank is thicker；
Warm forging jumping-up：Bar-shaped blank is put into the heading die with the second predetermined shape and to the upper end of the bar-shaped blank
Jumping-up, the blank that upper end is formed with contouring head is squeezed into by bar-shaped blank；
Warm forging is counter to squeeze：Blank is put into the anti-extruding mold with the 3rd predetermined shape and the head of the blank is carried out instead
Squeeze, be extruded into the first finished product that upper end is formed with hollow head by blank is counter；
Cold forging tube reducing：Under normal temperature condition, by first finished product be put into the tube reducing mould with the 4th predetermined shape and to it is described just into
The bar portion of product carries out diameter reducing extrusion, its length is reached predetermined value；
Cold forging finishing：Under normal temperature condition, finishing is carried out to the hollow head of the just finished product, finished product is obtained.
2. the duplex forging moulding process of sliding sleeve as claimed in claim 1, it is characterised in that：The base step and the temperature
Forging also comprises the following steps between just squeezing step：
Ball blast is cleaned：Ball blast cleaning is carried out to the surface of bar-shaped blank using Shotblast cleaning machine, to increase the surface of bar-shaped blank
Product,
Coating：Coating treatment is carried out to the bar-shaped blank cleaned by ball blast so that one layer of the surface uniform fold of bar-shaped blank
Graphite.
3. the duplex forging moulding process of sliding sleeve as claimed in claim 1, it is characterised in that：Step and institute are instead squeezed in the warm forging
Stating also includes between cold forging reducing step having the following steps：
Stress relief annealing：Stress relief annealing is carried out to the first finished product of acquisition using annealing furnace, to remove the internal stress of first finished product；
The temperature control of the stress relief annealing is：Set gradually three heating zones in annealing furnace, the just finished product passes sequentially through the
One heating zone, the second heating zone and the 3rd heating zone, the heating-up temperature of the first heating zone is 680 DEG C -700 DEG C, the second heating zone
Heating-up temperature is 660-680 DEG C, and the 3rd heating zone heating-up temperature is 640-660 DEG C, and total heat time control is small for 1.5-1.8
When, furnace cooling afterwards to natural cooling of coming out of the stove after 640 DEG C；
Ball blast is cleaned：Using Shotblast cleaning machine to after stress relief annealing first finished product carry out ball blast cleaning, with increase just into
The surface area of product；
Surface phospholeum：Surface phosphorus saponification process is carried out to the first finished product after ball blast is cleaned, to cause its surface to form one
Layer protective layer, wherein, the proportioning of each groove solution in the phosphorus saponification treatment step is：Concentration of caustic soda in degreasing bath is 40-
60 g/l；Sulfuric acid concentration in descaling bath is 10%-20%；Total acidity is 40-55 points in Phosphating Slot；Saponification liquor in soap tank
Concentration is 1.5-2.5 points.
4. the duplex forging moulding process of sliding sleeve as claimed in claim 1, it is characterised in that：The warm forging is just squeezed in step
The predetermined temperature is 720 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320458.9A CN107263021A (en) | 2017-05-09 | 2017-05-09 | A kind of duplex forging moulding process of sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320458.9A CN107263021A (en) | 2017-05-09 | 2017-05-09 | A kind of duplex forging moulding process of sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107263021A true CN107263021A (en) | 2017-10-20 |
Family
ID=60073852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710320458.9A Pending CN107263021A (en) | 2017-05-09 | 2017-05-09 | A kind of duplex forging moulding process of sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107263021A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622863A (en) * | 2018-12-20 | 2019-04-16 | 江苏海宇机械有限公司 | A kind of manufacturing method improving spline forged shaft profile accuracy |
| CN112975300A (en) * | 2021-03-23 | 2021-06-18 | 江苏威鹰机械有限公司 | All-terrain dune buggy steering gear housing and warm-cold composite forging production process thereof |
| CN114558970A (en) * | 2022-03-11 | 2022-05-31 | 江苏大洋精锻有限公司 | Flange shaft warm forging process |
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| US20060096912A1 (en) * | 2004-11-08 | 2006-05-11 | Sartorius Ag | Cellulose hydrate ultrafiltration membranes and method for their production |
| CN103722065A (en) * | 2012-10-14 | 2014-04-16 | 江苏威鹰机械有限公司 | Finishing forming method of cylindrical shell of DOJ constant velocity universal joint and finishing male die of cylindrical shell of DOG constant velocity universal joint |
| CN104741879A (en) * | 2015-04-10 | 2015-07-01 | 江苏大洋精锻有限公司 | Processing technology of precision forging sliding sleeve |
| CN104924037A (en) * | 2015-06-19 | 2015-09-23 | 江苏大洋精锻有限公司 | Machining technology of precise forged piece bell housing |
| CN105904163A (en) * | 2016-06-01 | 2016-08-31 | 江苏创汽车零部件有限公司 | Cold forging forming technology of input bracket claw piece |
| CN106112417A (en) * | 2016-07-24 | 2016-11-16 | 盐城中德精锻股份有限公司 | Exempt to weld major axis inner constant velocity universal joint precision forging Forging Technology |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096912A1 (en) * | 2004-11-08 | 2006-05-11 | Sartorius Ag | Cellulose hydrate ultrafiltration membranes and method for their production |
| CN103722065A (en) * | 2012-10-14 | 2014-04-16 | 江苏威鹰机械有限公司 | Finishing forming method of cylindrical shell of DOJ constant velocity universal joint and finishing male die of cylindrical shell of DOG constant velocity universal joint |
| CN104741879A (en) * | 2015-04-10 | 2015-07-01 | 江苏大洋精锻有限公司 | Processing technology of precision forging sliding sleeve |
| CN104924037A (en) * | 2015-06-19 | 2015-09-23 | 江苏大洋精锻有限公司 | Machining technology of precise forged piece bell housing |
| CN105904163A (en) * | 2016-06-01 | 2016-08-31 | 江苏创汽车零部件有限公司 | Cold forging forming technology of input bracket claw piece |
| CN106112417A (en) * | 2016-07-24 | 2016-11-16 | 盐城中德精锻股份有限公司 | Exempt to weld major axis inner constant velocity universal joint precision forging Forging Technology |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622863A (en) * | 2018-12-20 | 2019-04-16 | 江苏海宇机械有限公司 | A kind of manufacturing method improving spline forged shaft profile accuracy |
| CN109622863B (en) * | 2018-12-20 | 2020-03-27 | 江苏海宇机械有限公司 | Manufacturing method for improving tooth profile precision of spline shaft type forging |
| CN112975300A (en) * | 2021-03-23 | 2021-06-18 | 江苏威鹰机械有限公司 | All-terrain dune buggy steering gear housing and warm-cold composite forging production process thereof |
| CN114558970A (en) * | 2022-03-11 | 2022-05-31 | 江苏大洋精锻有限公司 | Flange shaft warm forging process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 224100 No. 5 Xikang Road, Dafeng Development Zone, Yancheng City, Jiangsu Applicant after: Jiangsu Chuangyi Automotive Parts Co., Ltd. Address before: 224100 No. 79 Xikang South Road, Dafeng City, Yancheng City, Jiangsu Applicant before: Jiangsu Chuangyi Automotive Parts Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
|
| RJ01 | Rejection of invention patent application after publication |