CN114193083B - Spinning roller preparation method suitable for spinning forming process of internal and external tooth parts - Google Patents
Spinning roller preparation method suitable for spinning forming process of internal and external tooth parts Download PDFInfo
- Publication number
- CN114193083B CN114193083B CN202010978141.6A CN202010978141A CN114193083B CN 114193083 B CN114193083 B CN 114193083B CN 202010978141 A CN202010978141 A CN 202010978141A CN 114193083 B CN114193083 B CN 114193083B
- Authority
- CN
- China
- Prior art keywords
- spinning
- forming process
- internal
- spinning forming
- tooth parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a spinning roller preparation method suitable for a spinning forming process of an internal and external tooth part, which comprises the following steps: 1) Selecting a steel billet with high hardenability, wear resistance and impact toughness as a raw material for manufacturing the spinning wheel; 2) Forging the billet, and repeatedly upsetting and drawing; 3) Then adopting a combination process of finish forging, flash cutting machining, carburizing, tempering heat treatment and surface shot blasting to manufacture the rotary wheel; 4) And (5) carrying out spinning forming on the inner and outer tooth parts by adopting a spinning forming process. The invention overcomes the defects of the prior art.
Description
Technical Field
The invention relates to a plastic forming technology of a metal material, in particular to a spinning roller preparation method suitable for a spinning forming process of an internal and external tooth part.
Background
The common processing method of the inner and outer tooth parts is gradually eliminated except that the factors of serious material waste, reduced strength caused by cutting of fibers and the like in the cutting processing are gradually eliminated, and the plastic processing method is gradually popularized and applied. However, the rolling extrusion, rolling and beating and other forming methods are low in production efficiency because the forming is carried out on tooth profiles one by one and the rollers are axially and radially reciprocated; in the radial forging forming method, although the tool does not need to move axially, the tool still forms one tooth profile by one tooth profile, and the die also needs to move radially and reciprocally, so that the production efficiency is not improved effectively; the impact extrusion molding method is to mold all tooth profiles simultaneously, so that the molding force is too large, the demolding is difficult, and the surface of the part is easy to scratch.
At present, a relatively approved spinning forming method is gradually applied, but the spinning roller is manufactured by adopting a cutting mode, the heat treatment is also general quenching and tempering, the spinning forming process specification is single, the service life of the spinning roller is low due to the factors, and the defects of serious local surface abrasion, local cracking and the like are easy to occur, so that the spinning roller needs to be replaced frequently, the production period is seriously influenced, and the processing cost of the inner and outer tooth parts is greatly increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a spinning roller preparation method suitable for the spinning forming process of internal and external tooth parts so as to overcome the defects in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a spinning roller preparation method suitable for an inner and outer tooth part spinning forming process comprises the following steps:
1) Selecting a steel billet with high hardenability, wear resistance and impact toughness as a raw material for manufacturing the spinning wheel;
2) Forging the billet, and repeatedly upsetting and drawing;
3) Then adopting a combination process of finish forging, flash cutting machining, carburizing, tempering heat treatment and surface shot blasting to manufacture the rotary wheel;
4) And spinning forming the inner and outer tooth parts by adopting a spinning forming process which is characterized by two stages and four sections and is from fast to slow.
Preferably, the steel billet in the step 1) has the hardenability of more than 100mm, the hardness of more than HRC60 and the impact toughness of more than 20J cm -2 。
Preferably, in the step 2), the billet is forged so that the forging ratio is more than 5 and the internal upsetting ratio is more than 3.
Preferably, the upsetting and drawing times in the step 2) are 6 to 8 times.
Preferably, the carburizing and tempering heat treatment in the step 3) further comprises surface carburizing treatment in a carburizing furnace after finish forging of the rotary wheel, and then quenching and tempering treatment in a heat treatment furnace.
Preferably, the surface shot blasting in the step 3) further comprises surface strengthening treatment of the tooth part of the rotary wheel by adopting a cast steel shot and a centrifugal shot blasting machine before the rotary wheel is manufactured.
Preferably, the spinning forming process in the step 4) further comprises feeding the spinning roller in a radial direction at a feeding ratio of 0.4-0.5 mm/r and 0.1-0.2 mm/r in the first and third stages of the spinning forming process, and suspending feeding of the spinning roller in the second and fourth stages of the spinning forming process.
Preferably, the thickness of the carburized layer of the surface carburization reaches more than 1.0 mm.
The spinning roller preparation method suitable for the spinning forming process of the internal and external tooth parts has the following beneficial effects:
1) The surface hardness of the rotary wheel can be effectively improved, and the wear resistance is improved;
2) The streamline distribution direction of the material in the spinning wheel can be effectively improved, and the strength of the material of the spinning wheel is improved;
3) The toughness of the material in the spinning wheel can be effectively improved, and the anti-cracking capability is improved;
4) The comprehensive performance of the rotary wheel can be effectively improved, and the service life of the rotary wheel is prolonged.
Drawings
FIG. 1 is a schematic flow chart of a method of preparing a spinning wheel according to the present invention;
FIG. 2 is a schematic view of an inner and outer tooth part of an embodiment of a method of manufacturing a rotor in accordance with the present invention;
FIG. 3 is a schematic view of the appearance of a rotor according to an embodiment of the method of manufacturing a rotor of the present invention;
fig. 4 is a schematic diagram of a two-stage four-stage spin forming process used in an embodiment of the method of preparing a roller of the present invention.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Referring to fig. 1, the method for preparing the spinning roller suitable for the spinning forming process of the internal and external tooth parts provided by the invention comprises the following steps:
1) The quenching degree is more than 100mm, the hardness is more than HRC60, and the impact toughness is more than 20J cm -2 Is used as a raw material for manufacturing the spinning wheel;
2) Forging the billet with a large forging ratio, and repeatedly upsetting and drawing for at least 6-8 times. Forging ratio is above 5, internal upsetting ratio is above 3;
3) And then adopting the combined processes of precision forging, flash cutting machining, carburizing, tempering heat treatment and surface shot blasting to manufacture the rotary wheel. The carburization and tempering heat treatment is specifically to carry out surface carburization treatment in a carburizing furnace after finish forging forming of the rotary wheel, and then quenching and tempering treatment in a heat treatment furnace, wherein the thickness of a carburized layer of the surface carburization reaches more than 1.0 mm. Before the rotary wheel is manufactured, adopting a cast steel shot and a centrifugal shot blasting machine to carry out surface strengthening treatment on the tooth part of the rotary wheel;
4) And spinning forming the inner and outer tooth parts by adopting a spinning forming process which is characterized by two stages and four sections and is from fast to slow. The spinning roller is fed in the radial direction at a feeding ratio of 0.4-0.5 mm/r and 0.1-0.2 mm/r in the first stage and the third stage of the spinning forming process from fast to slow, and the spinning roller pauses feeding in the second stage and the fourth stage of the spinning forming process.
Examples
A typical internal and external tooth part to be processed in this example is shown in FIG. 2, and the part material is used for producing SPHC acid-washed hot-rolled high-strength steel plates according to the enterprise standard Q/BQB 302-2009. When the profile of the tooth profile of the internal and external tooth part is formed, a cup-shaped part is taken as a blank, and a spinning forming process of intermeshing a spinning roller and a core mold and radial feeding of the spinning roller is adopted. Because the outer shape of the inner and outer tooth parts is complex and the material strength is high, the roller is stressed greatly during spinning forming. The improvement of the service life of the rotary wheel is a key technology for improving the production efficiency and reducing the processing cost. Referring to fig. 1, the specific flow of the embodiment of the method for preparing a spinning wheel according to the present invention is as follows:
1) H13 steel billet is selected as the raw material of the rotary wheel, the steel billet with the model meets the requirements that the hardenability is more than 100mm, the hardness is more than HRC60, and the impact toughness is more than 20J cm -2 Is not limited;
2) Upsetting and drawing the H13 billet for at least 6-8 times to make the forging ratio of the billet reach above 5 and the internal upsetting ratio reach above 3, and finally forging the billet into a disc-shaped steel block. The purpose of the repeated forging is to enable the streamline tissues inside the steel billet material to be distributed along different directions so as to improve the bearing capacity of the steel billet material in all directions;
3) The disc-shaped steel block obtained in the last step is manufactured into the tooth profile of the spinning wheel by adopting a precision forging process, and then small amounts of machining such as trimming and the like are performed to obtain the spinning wheel part, as shown in figure 3. The purpose of adopting the precision forging process is to protect streamline tissues in the billet material and avoid damage to assembly of the streamline when the tooth is manufactured by a conventional cutting method;
4) Carrying out surface carburization treatment on the rotary wheel part, enabling the thickness of a carburized layer to be more than 1.0mm, and improving the carbon content of a surface layer, wherein the aim of further improving the surface hardness of the rotary wheel part during subsequent heat treatment is to further improve the surface hardness of the rotary wheel part;
5) Carrying out modulation heat treatment on the rotary wheel part to ensure that the surface hardness of the rotary wheel part reaches 59-62 HRC and the internal hardness reaches 46-48 HRC, thereby ensuring that the rotary wheel part has good internal toughness and good surface hardness;
6) Shot blasting strengthening is carried out on the tooth profile surface of the rotary wheel part, so that the surface hardness is further improved, residual compressive stress is formed on the surface layer, the fatigue limit of the rotary wheel part is improved, and the service life is prolonged;
7) When the cup-shaped piece made of the SPHC steel plate is used as a spinning blank of the internal and external tooth parts for spinning forming, the spinning roller parts are completed in two stages and four sections along the radial feeding speed, so that deformation loads of all stages are reasonably distributed, and the spinning roller parts are shown in figure 4. The first section is initially deformed, and the rotary wheel part is fed at a faster speed of 0.4-0.5 mm/r; the feeding of the second section of the rotary wheel part is suspended, but the core mold and the rotary wheel part still keep rotating so as to relieve the non-uniform degree of the deformation of the workpiece material; the third section is close to final forming, and the rotary wheel part is fed at a slower speed of 0.1-0.2 mm/r; and stopping feeding the fourth section of roller part, and shaping the part by rotating the core mold and the roller still until the roller exits after the shaping time is met, thereby completing the spinning forming process of the inner and outer tooth parts.
The service life of the spinning roller can be effectively prolonged and the production cost of parts can be reduced by comprehensively controlling the raw material selection of the spinning roller, the blank forging standard, the finish forging forming of the spinning roller, the carburizing and tempering heat treatment standard, the surface shot peening strengthening process standard and the like.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (5)
1. The spinning roller preparation method suitable for the spinning forming process of the internal and external tooth parts is characterized by comprising the following steps of:
1) Selecting a steel billet with high hardenability, wear resistance and impact toughness as a raw material for manufacturing the spinning wheel;
2) Forging the billet, and repeatedly upsetting and drawing;
3) Then adopting a combination process of finish forging, flash cutting machining, carburizing, tempering heat treatment and surface shot blasting to manufacture the rotary wheel;
4) The spinning forming process is adopted to spin-form the inner and outer tooth parts,
wherein the spinning forming process in the step 4) further comprises feeding the spinning roller in the radial direction at a feeding ratio of 0.4-0.5 mm/r and 0.1-0.2 mm/r in the first and third stages of the spinning forming process, suspending feeding of the spinning roller in the second and fourth stages of the spinning forming process,
the surface shot blasting in the step 3) further comprises the step of adopting a cast steel shot and a centrifugal shot blasting machine to carry out surface strengthening treatment on the tooth part of the rotating wheel,
the thickness of the carburized layer of the surface carburization reaches more than 1.0 mm.
2. The method for preparing the roller suitable for the spinning forming process of the internal and external tooth parts according to claim 1, wherein the method comprises the following steps: the hardenability of the steel billet in the step 1) is more than 100mm, the hardness is more than HRC60, and the impact toughness is more than 20J cm -2 。
3. The method for preparing the roller suitable for the spinning forming process of the internal and external tooth parts according to claim 1, wherein the method comprises the following steps: and 2) forging the steel billet in the step 2) to enable the forging ratio to be more than 5 and the internal upsetting ratio to be more than 3.
4. The method for preparing the roller suitable for the spinning forming process of the internal and external tooth parts according to claim 1, wherein the method comprises the following steps: the times of upsetting and drawing in the step 2) are 6-8 times.
5. The method for preparing the roller suitable for the spinning forming process of the internal and external tooth parts according to claim 1, wherein the method comprises the following steps: the carburizing and tempering heat treatment in the step 3) further comprises surface carburizing treatment in a carburizing furnace, and then quenching and tempering treatment in a heat treatment furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978141.6A CN114193083B (en) | 2020-09-17 | 2020-09-17 | Spinning roller preparation method suitable for spinning forming process of internal and external tooth parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978141.6A CN114193083B (en) | 2020-09-17 | 2020-09-17 | Spinning roller preparation method suitable for spinning forming process of internal and external tooth parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114193083A CN114193083A (en) | 2022-03-18 |
| CN114193083B true CN114193083B (en) | 2023-05-09 |
Family
ID=80644602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010978141.6A Active CN114193083B (en) | 2020-09-17 | 2020-09-17 | Spinning roller preparation method suitable for spinning forming process of internal and external tooth parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114193083B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6539765B2 (en) * | 2001-03-28 | 2003-04-01 | Gary Gates | Rotary forging and quenching apparatus and method |
| US7065872B2 (en) * | 2003-06-18 | 2006-06-27 | General Electric Company | Method of processing a multiple alloy rotor |
| CN101850393B (en) * | 2010-05-14 | 2012-08-15 | 罗世凯 | Gear cold rotation flanging press forming method |
| JP5717145B2 (en) * | 2012-05-28 | 2015-05-13 | ジヤトコ株式会社 | Pulley for chain type continuously variable transmission |
| CN107201524B (en) * | 2017-05-22 | 2023-08-29 | 中信戴卡股份有限公司 | Laser strengthening processing forming method for surface of rotary wheel |
| CN109027035A (en) * | 2018-08-22 | 2018-12-18 | 石狮真发齿轮有限公司 | A kind of lorry synchronizer assembly and its processing technology |
| CN111015109A (en) * | 2019-12-20 | 2020-04-17 | 傲垦数控装备(苏州)有限公司 | Production process of spinning wheel |
-
2020
- 2020-09-17 CN CN202010978141.6A patent/CN114193083B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114193083A (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107201524B (en) | Laser strengthening processing forming method for surface of rotary wheel | |
| CN102019335B (en) | Cold forging processing method of hardened and tempered structural steel | |
| CN103447784B (en) | A kind of driving shaft processing technology | |
| JP2022511697A (en) | New hollow shaft manufacturing method | |
| CN104959794A (en) | Method for machining large inner gear ring of wind turbine gear box | |
| CN109048241B (en) | Method for forging input shaft of automobile gearbox and rough machining and forming blank of input shaft | |
| CN102000825A (en) | Method for manufacturing driving gear of motorcycle clutch | |
| CN1851281A (en) | Cold fine forging process for automobile bearing innerand outer ring, and its forging die | |
| CN102284835B (en) | Method for producing 10.9-class vehicle bolt of above M12 | |
| CN103737334A (en) | High-strength gear processing process | |
| JPH0938747A (en) | Manufacture of bevel gear | |
| CN108057992A (en) | A kind of preparation method of new-energy automobile drive motor shaft | |
| CN113976787A (en) | Method for preparing wall-thickness-variable ultrathin ultrahigh-strength steel cylinder | |
| CN106216972A (en) | Extrusion forming process of laughing somebody to scorn spent by a kind of isolator | |
| CN102716932B (en) | Mold for fabricating starting gear in gear-reduction starter | |
| CN111804918B (en) | Powder metallurgy part and preparation method thereof | |
| CN102107228A (en) | Manufacturing method and manufacturing mould for starting gear in reduction starter | |
| JP2000015379A (en) | Forging method of high carbon steel | |
| CN114193083B (en) | Spinning roller preparation method suitable for spinning forming process of internal and external tooth parts | |
| CN103590049A (en) | Processing method for spline of wind power output gear shaft | |
| CN1507963A (en) | Spline shaft processing method using cold extrusion of meidium carbon steel | |
| CN109822074A (en) | A kind of aluminium alloy wheel hub hot chamber extrusion casting technique | |
| CN111230430B (en) | Manufacturing process of front die of hub forging | |
| CN113941678B (en) | Forging process for hub sleeve warm forging and cold extrusion and die thereof | |
| CN1672833A (en) | Precise plastic forming technology for rolling body of large and medium-sized bearing |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |