CN109759795A - Metal thin-wall housing preparation process - Google Patents
Metal thin-wall housing preparation process Download PDFInfo
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- CN109759795A CN109759795A CN201910140697.5A CN201910140697A CN109759795A CN 109759795 A CN109759795 A CN 109759795A CN 201910140697 A CN201910140697 A CN 201910140697A CN 109759795 A CN109759795 A CN 109759795A
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Abstract
The invention discloses a kind of metal thin-wall housing preparation process, step of preparation process is as follows: a, by metal steel disc die cut at multiple thin rounded flakes；B, thin rounded flakes are subjected to first time punching stretch；C, succeeding stretch is carried out, time blank is obtained；D, light annealing is carried out to secondary blank；E, third time stretching is carried out to the secondary blank after annealing, becomes subjob；F, spinning is carried out by outer surface of the two-wheel outward turning equipment to subjob；G, punching press flanging is carried out to the subjob after spinning, then pinched；H, shaping is carried out by flanging of the hydraulic press to subjob, then carries out secondary topping；I, trimming processing is carried out to the flanging after shaping；J, turning is carried out by outer peripheral surface surplus of the lathe to subjob.Advantage is: shielding sleeve wall thickness prepared by the present invention is relatively thin, so that it is preferable using heat dissipation effect, and material consumption can also be effectively reduced in it.
Description
Technical field
The invention belongs to thin-wall sleeve fabricating technology fields, prepare work more particularly, to a kind of metal thin-wall housing
Skill.
Background technique
Currently, housing is mainly used on immersible pump, it is used to completely cut off rotor and stator, while preventing external water source
It enters internal and component is damaged；Its wall thickness in the case where satisfying the use demand gets over Bao Yue for housing
It is good, so that internal heat dissipation effect is preferable；Existing housing mostly uses greatly Multi-step forming to form in the preparation, punching press
After need to be cut again, the material that this preparation method expends is more, while the shielding sleeve wall thickness that this mode produces is thicker,
So that bad using heat dissipation effect；Simultaneously because its only turning outer diameter, this meeting is so that inner wall causes due to not having to carry out turning
Inner wall is rough, influence using precision；It is therefore desirable to be improved.
Summary of the invention
The purpose of the present invention is in view of the deficiency of the prior art, provide a kind of metal thin-wall housing preparation work
Skill, prepared by shielding sleeve wall thickness it is relatively thin so that preferable using heat dissipation effect, and its spy that material consumption can also be effectively reduced
Point.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of metal thin-wall housing preparation process,
Its step of preparation process is as follows:
A, by press machine stamped metal steel disc, and multiple thin rounded flakes are cut into；
B, thin rounded flakes are subjected to first time punching stretch, formed it into column construction hair closed at one end open at one end
Blank；
C, succeeding stretch is carried out to the molding blank of step b, obtains time blank；
D, light annealing is carried out to secondary blank；
E, third time stretching is carried out to the secondary blank after annealing, becomes subjob；
F, spinning is carried out to the outer surface for obtaining subjob in step e by two-wheel outward turning equipment；
G, punching press flanging is carried out to the subjob after spinning, is then pinched by stamping equipment；
H, shaping is carried out by flanging of the hydraulic press to subjob, then carries out secondary topping；
I, trimming processing is carried out to the flanging after shaping, its outer peripheral surface is made to reach round；
J, turning is carried out by outer peripheral surface surplus of the lathe to subjob, it is allowed to reach the use specification of workpiece.
The invention has the advantages that compared with the prior art: the spinning process in the present invention can reduce the damage of material
Consumption, i.e., when forming the workpiece of same size, it is smaller that the present invention compares material area required for prior art；Meanwhile it is this
Spinning process can allow inner wall flatness preferable, conducive to the flowing of water；In addition, the molding workpiece inner wall of institute is more smooth, reach
The effect of mirror surface is not easy to form scale, prolong the service life.
Specific embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Embodiment: a kind of metal thin-wall housing preparation process, step of preparation process are as follows:
A, by press machine stamped metal steel disc, and multiple thin rounded flakes are cut into；Metal steel disc is generally stainless
Steel steel disc is strip structure, by that can obtain circular stainless steel thin slice after press machine die cut.
B, thin rounded flakes are subjected to first time punching stretch, formed it into column construction hair closed at one end open at one end
Blank；In punching press, stainless steel thin slice is put on workbench, it is i.e. plastic to carry out punching press to it by cylindrical mandrel.
C, succeeding stretch is carried out to the molding blank of step b, obtains time blank；Obtained secondary hair after succeeding stretch
Its height of blank is stretched compared to first time wants high, and outer diameter wants small.
D, light annealing is carried out to secondary blank, annealing can allow the surface of time blank brighter, make
It is with preferable finish.
E, third time stretching is carried out to the secondary blank after annealing, becomes subjob；When third time stretches, i.e., will
Secondary blank sleeve carries out punching press to it by the retractable mandrel in mold on mold, to obtain outer diameter close to finished product work
The subjob of part, i.e. precut blanks.
F, spinning is carried out to the outer surface for obtaining subjob in step e by two-wheel outward turning equipment；It, will be secondary when rotary pressing processing
Then workpiece sleeve is rotated by two sides on the positioning mold core of lathe and the pair of rollers subjob that can be fed carries out spinning, made
Its wall thickness is thinning elongated；It allows wall thickness thinning in this way, more saves material than existing surplus turning, it can
In the smaller round stainless steel thin slice of initial stage selection area, the excess waste of material is avoided；Meanwhile positioning the table of mold core
Face is relatively smooth, and the inner wall of subjob can equally become relatively smooth after spinning, reaches technique requirement, eliminates
Postorder carries out turning, the process for saving preparation to its inside.
G, punching press flanging is carried out to the subjob after spinning, is then pinched by stamping equipment.
H, shaping is carried out by flanging of the hydraulic press to subjob, the effect of shaping is that the step on flanging is carried out vehicle
It cuts, be used cooperatively it can with axis in use；Full circle is carried out to the inner wall of subjob simultaneously, reaches the use of workpiece
Specification eliminates postorder secondary lathe process；Then carry out secondary topping.
I, trimming processing is carried out to the flanging after shaping, its outer peripheral surface is made to reach round；The effect of the process is to allow flanging
Circumference outer diameter reach and use specification, be not a complete circle simultaneously because punching press flanging will lead to the deformation of outer peripheral surface
Shape, by using outer peripheral surface can be allowed to reach a complete circular configuration after mold trimming.
J, turning is carried out by outer peripheral surface surplus of the lathe to subjob, its outer diameter is allowed to reach the use specification of workpiece.
Claims (1)
1. a kind of metal thin-wall housing preparation process, it is characterised in that: its step of preparation process is as follows:
A, by press machine stamped metal steel disc, and multiple thin rounded flakes are cut into；
B, thin rounded flakes are subjected to first time punching stretch, formed it into column construction blank closed at one end open at one end
Part；
C, succeeding stretch is carried out to the molding blank of step b, obtains time blank；
D, light annealing is carried out to secondary blank；
E, third time stretching is carried out to the secondary blank after annealing, becomes subjob；
F, spinning is carried out to the outer surface for obtaining subjob in step e by two-wheel outward turning equipment；
G, punching press flanging is carried out to the subjob after spinning, is then pinched by stamping equipment；
H, shaping is carried out by flanging of the hydraulic press to subjob, then carries out secondary topping；
I, trimming processing is carried out to the flanging after shaping, its outer peripheral surface is made to reach round；
J, turning is carried out by outer peripheral surface surplus of the lathe to subjob, it is allowed to reach the use specification of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140697.5A CN109759795A (en) | 2019-02-25 | 2019-02-25 | Metal thin-wall housing preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140697.5A CN109759795A (en) | 2019-02-25 | 2019-02-25 | Metal thin-wall housing preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109759795A true CN109759795A (en) | 2019-05-17 |
Family
ID=66457127
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910140697.5A Pending CN109759795A (en) | 2019-02-25 | 2019-02-25 | Metal thin-wall housing preparation process |
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| CN (1) | CN109759795A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547022A (en) * | 2021-06-07 | 2021-10-26 | 浙江蓝箭航天空间科技有限公司 | Thermal punching and spinning composite forming process for bottom of rocket fuel storage tank with large diameter-thickness ratio |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579804A (en) * | 2009-06-04 | 2009-11-18 | 航天材料及工艺研究所 | Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line |
| CN103170798A (en) * | 2011-12-21 | 2013-06-26 | 北京有色金属研究总院 | Machining method of high-quality large-diameter thin-wall metal barrel body |
| CN103522021A (en) * | 2013-10-31 | 2014-01-22 | 上海交通大学 | Spinning forming process of extra-high-voltage shielding cover |
| CN107470864A (en) * | 2017-08-03 | 2017-12-15 | 浙江汇金机械制造有限公司 | A kind of steel cylinder flow forming and molding process |
| CN108161372A (en) * | 2018-02-07 | 2018-06-15 | 北京天海工业有限公司 | A kind of metal cylinder liner processing method |
-
2019
- 2019-02-25 CN CN201910140697.5A patent/CN109759795A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579804A (en) * | 2009-06-04 | 2009-11-18 | 航天材料及工艺研究所 | Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line |
| CN103170798A (en) * | 2011-12-21 | 2013-06-26 | 北京有色金属研究总院 | Machining method of high-quality large-diameter thin-wall metal barrel body |
| CN103522021A (en) * | 2013-10-31 | 2014-01-22 | 上海交通大学 | Spinning forming process of extra-high-voltage shielding cover |
| CN107470864A (en) * | 2017-08-03 | 2017-12-15 | 浙江汇金机械制造有限公司 | A kind of steel cylinder flow forming and molding process |
| CN108161372A (en) * | 2018-02-07 | 2018-06-15 | 北京天海工业有限公司 | A kind of metal cylinder liner processing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547022A (en) * | 2021-06-07 | 2021-10-26 | 浙江蓝箭航天空间科技有限公司 | Thermal punching and spinning composite forming process for bottom of rocket fuel storage tank with large diameter-thickness ratio |
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Application publication date: 20190517 |