CN106334906A - Automobile part surface processing method - Google Patents
Automobile part surface processing method Download PDFInfo
- Publication number
- CN106334906A CN106334906A CN201611004922.5A CN201611004922A CN106334906A CN 106334906 A CN106334906 A CN 106334906A CN 201611004922 A CN201611004922 A CN 201611004922A CN 106334906 A CN106334906 A CN 106334906A
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- formed product
- blank
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- ball blast
- stress relief
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses an automobile part surface processing method which includescutting, the blank preparation; softening of blank, heating the blank with a heating stoveto reduce the hardness of blank; machining the blank, to removethe surface scale on the blank with a lathe; punching,preparing the hollow bore , in which the punching recess is remained, with a punch press; removing punching recess, using lathe to finish the hollow bore to preliminary dimension, while removing punching recess and to obtain the secondary initially formed product; and cold-forging ,placing the secondary initially formed product into the die cavity with predetermined shape by the second first formed product and cold forging and extruding a number of times the secondary intitially formed product with an hydraulic quipment to obtain obtain the finished product with predetermined shape. The technical effect of the invention is: 1. in that preparation of the hollow bore, the pre-deformation of the blank increases the strength of the blank, and further extruding ing the blank with the hollow bore in the cold forging and forming process makes the blank to deform sufficiently by a further extruding thereby the strength of the product is effectively improved; and 2. the bore is punched into a hollow bore, which save the blank.
Description
Technical field
The present invention relates to metal stamping field is and in particular to a kind of surface of automobile part processing method.
Background technology
Hollow pipe output shaft, is also called pipe axle, is the key components and partss in automobile, simultaneously because its usage amount is big, manufactures
The economy of technique is also important Consideration.The typically forged rear machining of existing hollow pipe output shaft shapes, its
Technological process is: blanking base -> ball blast -> surface phospholeum -> forging and molding -> machining boring.It can be seen that, existing hollow pipe
The hollow hole of output shaft passes through machining boring after forging and molding and is formed, during it has a disadvantage in that 1. forging and moldings,
The middle shaft part of output shaft does not produce abundant deformation, causes the low strength of the middle shaft part of product, reduces the use of product
Life-span；2. hollow hole is formed by machining boring, causes the waste of blank.
Content of the invention
The present invention is directed to the problems referred to above, there is provided a kind of surface of automobile part processing method, its concrete technical scheme is such as
Under:
A kind of surface of automobile part processing method, the technique being combined using cold forging and machining, it includes blanking, base
Material softens, machines base, punching, removes punching recess, cold-forging forming, ball blast, stress relief annealing, phosphorus saponification process, and it is special
Levy and be: described blanking is to prepare the blank stage, described blank softens the hardness being to reduce blank using heating stove heat blank,
Described machining base is surface scale, micro-crack and the rusty stain removing blank using lathe, and described punching is to use punch press
The hollow hole of punching recess is remained with, described removal punching recess is to pre- scale using lathe polish hollow hole in the middle of preparation
Very little, remove punching recess, described cold-forging forming is to have the just crowded of reservation shape by going punching recess formed product to put into simultaneously
In die cavity, using hydraulic test to going punching recess formed product to carry out cold forging extruding several times, to obtain finished product, described
Ball blast is, using Shotblast cleaning machine, the blank after base is carried out with ball blast, and described stress relief annealing is to use pit type annealing furnace
Evacuation the annealing of nitrogen charging gas shielded.
Limit further, also comprise the steps: for the first time between described machining base step and described punching step
Ball blast: using Shotblast cleaning machine, ball blast is carried out to the blank after base, to increase the surface area of blank；First subsurface phospholeum
Change: phosphorus saponification process is carried out so that blank surface is gentle to the blank after first time ball blast.
Limit further, also comprise the steps: between described removal punching recess step and described cold-forging forming step
First time stress relief annealing: stress relief annealing is carried out to the second first formed product；Second ball blast: using Shotblast cleaning machine to warp
Cross the after first time stress relief annealing second first formed product and carry out ball blast, to increase the surface area of the second pre-profiling product；The
Secondary surface phospholeum: just formed product carries out phosphorus saponification process so that second just becomes to second after second ball blast
Shape product surface is gentle.
Limit further, described cold-forging forming step includes three cold forging extruding, specific as follows: just squeeze axle portion for the first time,
Second first formed product is put in the just crowded die cavity with the first reservation shape, using hydraulic test to the second first formed product
Carry out first time cold forging extruding, to obtain the 3rd first formed product；Just squeezing axle portion for the second time, the 3rd first formed product is being put into tool
There is just squeezing in die cavity of the second reservation shape, using hydraulic test, second cold forging extruding is carried out to the 3rd first formed product, with
Obtain the 4th first formed product；Squeeze bulb shapes, and the 4th first formed product is put into the just crowded mould with the 3rd reservation shape
In chamber, using hydraulic test, squeeze bulb operation is carried out to the 4th first formed product, obtain finished product.
Limit further it is characterised in that described first time is just squeezing axle portion step is just squeezing axle portion step for the second time with described
Between also comprise the steps: second stress relief annealing, to the 3rd just formed product carry out stress relief annealing；Three ball blasts,
Using Shotblast cleaning machine, to the 3rd after second stress relief annealing, just formed product carries out ball blast, is just become with increasing the 3rd
The surface area of shape product；Third time surface phospholeum, to the 3rd after third time ball blast, just formed product carries out phospholeum
Process so that the 3rd first formed product surface is gentle.
Limit further, described for the second time just squeeze also include between axle portion step and described squeeze bulb forming step as follows
Step:
Third time stress relief annealing, carries out stress relief annealing to the 4th first formed product；4th ball blast is clear using ball blast
To the 4th after third time stress relief annealing, just formed product carries out ball blast to washing machine, to increase the table of the 4th first formed product
Area；4th subsurface phospholeum, to the 4th after the 4th ball blast, just formed product carries out phosphorus saponification process so that the
Four first formed product surfaces are gentle.
Limit further, described phospholeum processing method is as follows: 50-55 DEG C of liquid temperature pickling 5-12 minute, clear water rinses 1-3
Minute；75-83 DEG C of liquid temperature phosphatization 10-12 minute, clear water rinses 1-2 minute；85-95 DEG C of liquid temperature saponification 8-10 minute.
The invention has the advantage that compared with prior art, the method have technical effect that: when preparing hollow hole, right
The predeformation of blank improves the intensity of blank, is pressed further by hollow hole blank, makes blank during cold-forging forming
Further extruded and produced abundant deformation, thus effectively increasing the intensity of product, punching is formed hollow hole, saves
Blank.
Specific embodiment
Described:
1st, blanking: take 20crmnti round steel bar stock saw cutting, control, control the weight of blank weigh 10 than finished product weight～
12%；
2nd, blank softens: using heating stove heat blank, to reduce the hardness of blank；
3rd, machine base: remove surface scale, micro-crack and the rusty stain of blank using lathe, obtain and there is high surface
The blank of quality；
4th, first time ball blast: using Shotblast cleaning machine, ball blast is carried out to the blank after machining base, to increase its surface
Long-pending；
5th, the first subsurface phospholeum: to the blank after first time ball blast；Carry out phosphorus saponification process so that blank；
Surface is gentle；
6th, punching: using the hollow hole remaining with punching recess in the middle of punch press preparation, in punch process, by adjusting punch press
Punching press dynamics so that the position of punching recess is in the middle part of hollow hole, so that not needing during cold-forging forming
Middle the shaft part of extruding just can sufficiently be extruded in punch process and produce and fully deform, punching terminate after acquisition the
One first formed product；
7th, remove punching recess: using lathe polish hollow hole to preliminary dimension, remove punching recess simultaneously, obtain the
Two first formed products, and reclaim punching recess waste material；
8th, first time stress relief annealing: stress relief annealing is carried out to the second first formed product.
9th, second ball blast: just formed product enters to second after first time stress relief annealing using Shotblast cleaning machine
Row ball blast, to increase its surface area；
10th, the second subsurface phospholeum: just formed product carries out phosphorus saponification process to second after second ball blast,
Make its surface gentle, be easy to subsequent technique；
11st, just squeezing axle portion for the first time: first, just formed product puts into tool by second after the second subsurface phospholeum
There is just squeezing in die cavity of the first reservation shape, using hydraulic test, first time cold forging is carried out to the lower end of the second first formed product and squeeze
Pressure, to obtain the 3rd first formed product；
12nd, second stress relief annealing: stress relief annealing is carried out to the 3rd first formed product；
13rd, third time ball blast: using Shotblast cleaning machine to the just formed product of the 3rd after second stress relief annealing
Carry out Shot Blasting, to increase its surface area；
14th, third time surface phospholeum: just formed product carries out phosphorus saponification process to the 3rd after third time ball blast,
Make blank surface gentle, be easy to subsequent technique；
15th, just squeezing axle portion for the second time: and then, by the 3rd after the phospholeum of third time surface, just formed product puts into tool
There is just squeezing in die cavity of the second reservation shape, using hydraulic test, second cold forging is carried out to the top of the 3rd first formed product and squeeze
Pressure, to obtain the 4th first formed product；
16th, third time stress relief annealing: stress relief annealing is carried out to the 4th first formed product；
17th, the 4th ball blast: using Shotblast cleaning machine to the just formed product of the 4th after third time stress relief annealing
Carry out Shot Blasting, to increase its surface area；
18th, the 4th subsurface phospholeum: just formed product carries out phosphorus saponification process to the 4th after the 4th ball blast,
Make the 4th first formed product surface gentle, be easy to subsequent technique；
19th, squeeze bulb shapes: last, first for the 4th after the 4th subsurface phospholeum formed product is put into and has
Just squeezing in die cavity of 3rd reservation shape, carries out squeeze bulb shaping operation using hydraulic test to first formed product, to be formed
Final finished product.
Above the present invention has been carried out with the description with certain particularity detailed enough.Ordinary skill in art
Personnel 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 and make all changes and all should belong to protection scope of the present invention.Scope of the present invention is by described power
Sharp claim is defined, rather than to be limited by the foregoing description in embodiment.
Claims (7)
1. a kind of surface of automobile part processing method, the technique being combined using cold forging and machining, it includes blanking, blank
Soften, machine base, punching, remove punching recess, cold-forging forming, ball blast, stress relief annealing, phosphorus saponification process, its feature
It is: described blanking is to prepare the blank stage, described blank softens the hardness being to reduce blank using heating stove heat blank, institute
Stating machining base is surface scale, micro-crack and the rusty stain removing blank using lathe, and described punching is using punch press system
Standby centre remains with the hollow hole of punching recess, and described removal punching recess is to pre- scale using lathe polish hollow hole
Very little, remove punching recess, described cold-forging forming is to have the just crowded of reservation shape by going punching recess formed product to put into simultaneously
In die cavity, using hydraulic test to going punching recess formed product to carry out cold forging extruding several times, to obtain finished product, described
Ball blast is, using Shotblast cleaning machine, the blank after base is carried out with ball blast, and described stress relief annealing is to use pit type annealing furnace
Evacuation the annealing of nitrogen charging gas shielded.
2. as claimed in claim 1 a kind of surface of automobile part processing method it is characterised in that described machining base step
Rapid also comprise the steps: and described punching step between
First time ball blast: using Shotblast cleaning machine, ball blast is carried out to the blank after base, to increase the surface area of blank；
First subsurface phospholeum: phosphorus saponification process is carried out so that blank surface is gentle to the blank after first time ball blast.
3. as claimed in claim 1 a kind of surface of automobile part processing method it is characterised in that described removal punching recess
Also comprise the steps: between step and described cold-forging forming step
First time stress relief annealing: stress relief annealing is carried out to the second first formed product；
Second ball blast: just formed product is thrown to second after first time stress relief annealing using Shotblast cleaning machine
Ball, to increase the surface area of the second pre-profiling product；
Second subsurface phospholeum: just formed product carries out phosphorus saponification process so that the to second after second ball blast
Two first formed product surfaces are gentle.
4. as claimed in claim 1 a kind of surface of automobile part processing method it is characterised in that described cold-forging forming step
Extrude including three cold forgings, specific as follows:
Just squeezing axle portion for the first time: first, the second first formed product is put in the just crowded die cavity with the first reservation shape, utilizes
Hydraulic test carries out first time cold forging extruding to the second first formed product, to obtain the 3rd first formed product；
Just squeezing axle portion for the second time: and then, the 3rd first formed product is put in the just crowded die cavity with the second reservation shape, utilizes
Hydraulic test carries out second cold forging extruding to the 3rd first formed product, to obtain the 4th first formed product.
5. squeeze bulb shapes: last, the 4th first formed product is put in the just crowded die cavity with the 3rd reservation shape, utilizes
Liquid as claimed in claim 4 a kind of surface of automobile part processing method it is characterised in that described first time just squeeze axle portion step
Rapid and described just squeezing for the second time also comprises the steps: between axle portion step
Second stress relief annealing: stress relief annealing is carried out to the 3rd first formed product；
Third time ball blast: just formed product is thrown to the 3rd after second stress relief annealing using Shotblast cleaning machine
Ball, to increase the surface area of the 3rd first formed product；
Third time surface phospholeum: just formed product carries out phosphorus saponification process so that the to the 3rd after third time ball blast
Three first formed product surfaces are gentle, are easy to subsequent technique.
6. as claimed in claim 4 a kind of surface of automobile part processing method it is characterised in that described for the second time just squeeze axle
Also comprise the steps: between portion's step and described squeeze bulb forming step
Third time stress relief annealing: stress relief annealing is carried out to the 4th first formed product；
4th ball blast: just formed product is thrown to the 4th after third time stress relief annealing using Shotblast cleaning machine
Ball, to increase the surface area of the 4th first formed product；
4th subsurface phospholeum: just formed product carries out phosphorus saponification process so that the to the 4th after the 4th ball blast
Four first formed product surfaces are gentle, are easy to subsequent technique.
7. as claimed in claim 1 a kind of surface of automobile part processing method it is characterised in that: described phosphorus saponification process side
Method is as follows, 50-55 DEG C of liquid temperature pickling 5-12 minute, and clear water rinses 1-3 minute；75-83 DEG C of liquid temperature phosphatization 10-12 minute, clear water
Rinsing 1-2 minute；85-95 DEG C of liquid temperature saponification 8-10 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004922.5A CN106334906A (en) | 2016-11-15 | 2016-11-15 | Automobile part surface processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004922.5A CN106334906A (en) | 2016-11-15 | 2016-11-15 | Automobile part surface processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334906A true CN106334906A (en) | 2017-01-18 |
Family
ID=57841879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611004922.5A Withdrawn CN106334906A (en) | 2016-11-15 | 2016-11-15 | Automobile part surface processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106334906A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030452A (en) * | 2017-05-09 | 2017-08-11 | 江苏创精锻有限公司 | A kind of automobile long handle sliding sleeve moulding process |
| CN111761303A (en) * | 2020-06-17 | 2020-10-13 | 盐城中德精锻股份有限公司 | Cold forging processing technology of stepped hollow shaft |
-
2016
- 2016-11-15 CN CN201611004922.5A patent/CN106334906A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030452A (en) * | 2017-05-09 | 2017-08-11 | 江苏创精锻有限公司 | A kind of automobile long handle sliding sleeve moulding process |
| CN107030452B (en) * | 2017-05-09 | 2019-03-22 | 江苏创一精锻有限公司 | A kind of automobile long handle sliding sleeve moulding process |
| CN111761303A (en) * | 2020-06-17 | 2020-10-13 | 盐城中德精锻股份有限公司 | Cold forging processing technology of stepped hollow shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170118 |
|
| WW01 | Invention patent application withdrawn after publication |