CN112872107B - Method for reducing grooves in bottoming of aluminum alloy sleeve - Google Patents
Method for reducing grooves in bottoming of aluminum alloy sleeve Download PDFInfo
- Publication number
- CN112872107B CN112872107B CN202110389437.9A CN202110389437A CN112872107B CN 112872107 B CN112872107 B CN 112872107B CN 202110389437 A CN202110389437 A CN 202110389437A CN 112872107 B CN112872107 B CN 112872107B
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- Prior art keywords
- aluminum alloy
- alloy sleeve
- expansion shaft
- sleeve
- priming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/06—Removing local distortions
- B21D1/08—Removing local distortions of hollow bodies made from sheet metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a method for reducing grooves in priming an aluminum alloy sleeve, which has the following advantages: (1) The pressure of the expansion shaft is matched with the tensile strength of the aluminum alloy sleeve, so that on one hand, the slipping between the expansion shaft and the aluminum alloy sleeve can be avoided, and on the other hand, the external pressure of the expansion shaft to the aluminum alloy sleeve can be reduced; (2) The starting pressure is regulated, so that an effective buffer effect can be achieved on stress release on the aluminum alloy sleeve, and the phenomenon that grooves appear on the surface of the aluminum alloy sleeve due to the fact that the stress release rate is too high is avoided.
Description
Technical Field
The invention particularly relates to a method for reducing grooves in priming of an aluminum alloy sleeve
Background
For the purpose of saving production cost, the aluminum alloy sleeve is manufactured by using a cast-rolled blank with the thickness of 6.0-7.0mm to replace the existing steel sleeve and paper core sleeve in the production process, but due to the fact that the hardness and strength of the aluminum alloy sleeve are low, a bottoming groove phenomenon is frequently generated in finishing production, the aluminum alloy sleeve is directly collapsed and scrapped when the situation is serious, repeated reworking production is caused, and production efficiency and yield are reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a method for reducing grooves when an aluminum alloy sleeve is bottomed, which comprises the following steps:
step one: screening qualified aluminum alloy sleeves;
step two: adjusting the pressure of an expansion shaft in the priming machine, wherein the pressure of the expansion shaft is matched with the tensile strength of an aluminum alloy sleeve to be primed;
step three: adjusting the head of the priming machine to ensure that the position of the head corresponds to the middle position of the aluminum alloy sleeve;
step four: starting pressure intensity of the priming machine is regulated, and priming work of the aluminum alloy sleeve is started.
Furthermore, the material of the aluminum alloy sleeve in the second step is 1235 aluminum alloy casting blank, and the tensile strength of the 1235 aluminum alloy casting blank is 110+/-10 MPa.
Furthermore, in the second step, the tension of the expansion shaft corresponding to the tensile strength of the 1235 aluminum alloy casting blank is not more than 3MPa.
Further, in the second step, the aluminum alloy sleeve is made of 8011 aluminum alloy casting blank, and the tensile strength of the 8011 aluminum alloy casting blank is 120+/-10 MPa.
Furthermore, in the second step, the tension of the expansion shaft corresponding to the tensile strength of the aluminum alloy casting blank 8011 is not more than 3.5MPa.
Further, the starting pressure of the priming machine in the fourth step is 4.0+/-0.3 kg/mm 2 。
The beneficial effects are that: the invention discloses a method for reducing grooves in priming an aluminum alloy sleeve, which has the following advantages: (1) The pressure of the expansion shaft is matched with the tensile strength of the aluminum alloy sleeve, so that on one hand, the slipping between the expansion shaft and the aluminum alloy sleeve can be avoided, and on the other hand, the external pressure of the expansion shaft to the aluminum alloy sleeve can be reduced; (2) The starting pressure is regulated, so that an effective buffer effect can be achieved on stress release on the aluminum alloy sleeve, and the phenomenon that grooves appear on the surface of the aluminum alloy sleeve due to the fact that the stress release rate is too high is avoided.
Drawings
FIG. 1 is a flow chart of a method of reducing the occurrence of grooves in an aluminum alloy sleeve during bottoming;
detailed description of the preferred embodiments
The present invention will be described in further detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are intended to be illustrative only and are not to be construed as limiting the scope of the present invention.
A method for reducing the occurrence of grooves in the bottoming of an aluminum alloy sleeve, comprising the steps of:
step one: screening qualified aluminum alloy sleeves;
step two: adjusting the pressure of an expansion shaft in the priming machine, wherein the pressure of the expansion shaft is matched with the tensile strength of an aluminum alloy sleeve to be primed;
step three: adjusting the head of the priming machine to ensure that the position of the head corresponds to the middle position of the aluminum alloy sleeve;
step four: starting pressure intensity of the priming machine is regulated, and priming work of the aluminum alloy sleeve is started.
In the embodiment, the material of the aluminum alloy sleeve in the second step is a 1235 aluminum alloy casting blank, the tensile strength of the 1235 aluminum alloy casting blank is 110±10MPa, and the expansion shaft pressure corresponding to the tensile strength of the 1235 aluminum alloy casting blank is not more than 3MPa.
In the embodiment, the material of the aluminum alloy sleeve in the second step is 8011 aluminum alloy casting blank, the tensile strength of the 8011 aluminum alloy casting blank is 120±10MPa, and the expansion shaft pressure corresponding to the tensile strength of the 8011 aluminum alloy casting blank is not more than 3.5MPa.
In the embodiment, the starting pressure of the priming machine in the fourth step is 4.0+ -0.3 kg/mm 2 。
The invention discloses a method for reducing grooves in priming an aluminum alloy sleeve, which has the following advantages: (1) The pressure of the expansion shaft is matched with the tensile strength of the aluminum alloy sleeve, so that on one hand, the slipping between the expansion shaft and the aluminum alloy sleeve can be avoided, and on the other hand, the external pressure of the expansion shaft to the aluminum alloy sleeve can be reduced; (2) The starting pressure is regulated, so that an effective buffer effect can be achieved on stress release on the aluminum alloy sleeve, and the phenomenon that grooves appear on the surface of the aluminum alloy sleeve due to the fact that the stress release rate is too high is avoided.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. A method for reducing the occurrence of grooves in the priming of aluminum alloy sleeves for replacing existing steel and paper core sleeves, comprising the steps of:
step one: screening qualified aluminum alloy sleeves;
step two: adjusting the pressure of an expansion shaft in the priming machine, wherein the pressure of the expansion shaft is matched with the tensile strength of an aluminum alloy sleeve to be primed;
step three: adjusting the head of the priming machine to ensure that the position of the head corresponds to the middle position of the aluminum alloy sleeve;
step four: starting pressure intensity of the priming machine is regulated, and priming work of the aluminum alloy sleeve is started;
the material of the aluminum alloy sleeve in the second step is an aluminum alloy casting blank No. 1235, and the tensile strength of the aluminum alloy casting blank No. 1235 is 110+/-10 MPa; in the second step, the tension of the expansion shaft corresponding to the tensile strength of the 1235 aluminum alloy casting blank is not more than 3MPa; starting pressure of the priming machine in the fourth step is 4.0+/-0.3 kg/mm 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389437.9A CN112872107B (en) | 2021-04-12 | 2021-04-12 | Method for reducing grooves in bottoming of aluminum alloy sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389437.9A CN112872107B (en) | 2021-04-12 | 2021-04-12 | Method for reducing grooves in bottoming of aluminum alloy sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112872107A CN112872107A (en) | 2021-06-01 |
| CN112872107B true CN112872107B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110389437.9A Active CN112872107B (en) | 2021-04-12 | 2021-04-12 | Method for reducing grooves in bottoming of aluminum alloy sleeve |
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| Country | Link |
|---|---|
| CN (1) | CN112872107B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408246A2 (en) * | 1989-07-10 | 1991-01-16 | Deublin Company | Expanding shaft assembly |
| DE4239832A1 (en) * | 1992-11-26 | 1994-06-01 | Richard Schlotter | Yarn bobbin - is of a cast aluminium alloy blank turned to the accurate dimensions and age hardened or covered with a hard surface coating |
| EP0784227A1 (en) * | 1996-01-10 | 1997-07-16 | Agfa-Gevaert N.V. | Winding core |
| CN105645190A (en) * | 2016-02-27 | 2016-06-08 | 浙江三信智能机械科技有限公司 | Paper steel shaft |
| CN106966232A (en) * | 2017-05-23 | 2017-07-21 | 长兴夹浦钇航纺织厂 | A kind of textile machinery reel |
| CN210045792U (en) * | 2019-04-04 | 2020-02-11 | 山西阳煤化工机械（集团）有限公司 | Can be used to different diameter barrels indent circle supporting device |
| CN210558661U (en) * | 2019-06-28 | 2020-05-19 | 石家庄市建南机电技术研究所 | Antenna soft oscillator winding and unwinding wheel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2761964B1 (en) * | 1997-04-10 | 1999-07-02 | Kvaerner Metals Clecim | COIL MANDREL FOR WINDING A TAPE PRODUCT AND USE THEREOF |
| TW484617U (en) * | 2001-05-15 | 2002-04-21 | Shi-Tsai Chen | Pneumatic cover clip |
| US9617112B1 (en) * | 2009-10-23 | 2017-04-11 | Southwire Company, Llc | Independently rotatable flanges and attachable arbor hole adapters |
| CN212032915U (en) * | 2020-04-22 | 2020-11-27 | 厦门市榕鑫达实业有限公司 | Contact forming tool |
| CN111843248B (en) * | 2020-07-22 | 2022-02-11 | 佛山市福盛创展金属制品有限公司 | Supporting and collecting device for laser cutting equipment |
-
2021
- 2021-04-12 CN CN202110389437.9A patent/CN112872107B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408246A2 (en) * | 1989-07-10 | 1991-01-16 | Deublin Company | Expanding shaft assembly |
| DE4239832A1 (en) * | 1992-11-26 | 1994-06-01 | Richard Schlotter | Yarn bobbin - is of a cast aluminium alloy blank turned to the accurate dimensions and age hardened or covered with a hard surface coating |
| EP0784227A1 (en) * | 1996-01-10 | 1997-07-16 | Agfa-Gevaert N.V. | Winding core |
| CN105645190A (en) * | 2016-02-27 | 2016-06-08 | 浙江三信智能机械科技有限公司 | Paper steel shaft |
| CN106966232A (en) * | 2017-05-23 | 2017-07-21 | 长兴夹浦钇航纺织厂 | A kind of textile machinery reel |
| CN210045792U (en) * | 2019-04-04 | 2020-02-11 | 山西阳煤化工机械（集团）有限公司 | Can be used to different diameter barrels indent circle supporting device |
| CN210558661U (en) * | 2019-06-28 | 2020-05-19 | 石家庄市建南机电技术研究所 | Antenna soft oscillator winding and unwinding wheel |
Non-Patent Citations (1)
| Title |
|---|
| 压接式铝合金定位器质量分析;张益民等;《西铁科技》(第01期);全文 * |
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| CN112872107A (en) | 2021-06-01 |
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