CN1480270A - Method for processing thin wall pipefittings with changed diameter - Google Patents
Method for processing thin wall pipefittings with changed diameter Download PDFInfo
- Publication number
- CN1480270A CN1480270A CNA021293392A CN02129339A CN1480270A CN 1480270 A CN1480270 A CN 1480270A CN A021293392 A CNA021293392 A CN A021293392A CN 02129339 A CN02129339 A CN 02129339A CN 1480270 A CN1480270 A CN 1480270A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- pipe
- diameter
- external diameter
- processing method
- 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.)
- Granted
Links
Landscapes
- Forging (AREA)
- Extrusion Of Metal (AREA)
- Metal Extraction Processes (AREA)
- Turning (AREA)
Abstract
A technology for manufacturing thin-wall diameter-varied pipe includes choosing a seamless raw pipe whose diameter is 0.5-1 mm greater than needed diameter, preparing mandrel with the shape same as the needed pipe, inserting the mandrell in said seamless raw pipe, high-speed rotating while pressing the position to be deformed by hard alloy tool to raise its temp to 650-730 deg.C, radial squeezing while axial moving to change its diameter, and final shaping by fine turning. Its advantage is high productivity.
Description
Technical field
The present invention relates to a kind of processing method of pipe fitting, specifically, relate to a kind of processing method of thin-walled reducer pipe fitting.
Background technology
The thin-walled reducer pipe fitting, it is very difficult guiding the processing of toothholder as locomotive tread formula unit brake cylinder.All be to adopt round steel to carry out turning at present, this kind processing method will machine away wide variety of materials, makes it become iron filings, can't help wasting aspect material greatly, all can cause great consumption at aspects such as artificial, cutter, equipment, the energy simultaneously.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, the processing method of the low thin-walled reducer pipe fitting of a kind of cost is provided.
The processing method of thin-walled reducer pipe fitting of the present invention, its step is as follows:
A, select the seamless pipe of same type of material for use according to the kind of pipe fitting material requested, its size is selected according to the inside and outside footpath of desired pipe fitting, and its external diameter is than the big 0.5mm-1mm of external diameter of the pipe fitting of wanting;
B, preparation mandrel, the external diameter of mandrel cooperates with the internal diameter of seamless pipe, and its shape is identical with the shape of desired pipe fitting, is inserted in the seamless pipe;
C, at a high speed rotate above-mentioned equipped workpiece, give birth to heat in the extruding of reducing place intensified pressure, when temperature reaches 650 ℃-730 ℃, with the carbide bit radial compression and move axially, make workpiece deformation with carbide bit.
When rotating at a high speed, rotating speed is more than 1200 rev/mins, and feed is 0.2m/r.
Adopt the processing method of attenuation wall of the present invention footpath pipe fitting, through the blank behind the extruding undergauge, carry out the finish turning shaping again, or other operation, can save a large amount of raw material, shorten man-hour, for example, every of the guiding toothholder raw material of processing locomotive tread formula unit brake cylinder can be saved 2.7kg, and the hour norm has reduced by 46%, and cost has reduced by 50%.
Description of drawings
Fig. 1 is the working state figure that adopts processing method of the present invention.
The specific embodiment
Referring to Fig. 1, the processing method of thin-walled reducer pipe fitting of the present invention is a seamless pipe 1 of selecting same type of material according to the required material category of pipe fitting for use, and its size is selected according to the inside and outside footpath of desired pipe fitting, and external diameter is than the big 0.5mm-1mm of external diameter of desired pipe fitting.Preparation mandrel 2, the external diameter of this mandrel cooperates with the internal diameter of seamless pipe, its shape is identical with the shape of want pipe fitting, be inserted in the seamless pipe 1, rotate above-mentioned counterpart then at a high speed, its speed is reached more than 1200 rev/mins, adopt the carbide alloy squeezing knife tool, give birth to heat in the extruding of reducing place intensified pressure as the carbide cutter tool of YW1, when temperature reaches 650 ℃-730 ℃, surface of the work reddens, deliquescing, this moment is distortion very easily, again with the carbide bit radial compression and move axially, its feed is 0.2m/r, make workpiece deformation, promptly finish undergauge work, obtain needed reducer pipe fitting.
The equipment of rotation can adopt engine lathe at a high speed, as CA6140,
Adopt the processing method of attenuation wall of the present invention footpath pipe fitting, through the blank behind extruding, the undergauge, carry out the finish turning shaping again, or other operation, can shorten man-hour, save a large amount of raw material, cutter, equipment and the energy etc., for example, every of the guiding toothholder raw material of processing locomotive tread formula unit brake cylinder can be saved 2.7kg, and the hour norm has reduced by 46%, and cost has reduced by 50%.
Claims (2)
1. the processing method of thin-walled reducer pipe fitting, its step is as follows:
A, select the seamless pipe (1) of same type of material for use according to the kind of pipe fitting material requested, its size is selected according to the inside and outside footpath of desired pipe fitting, and its external diameter is than the big 0.5mm-1mm of external diameter of the pipe fitting of wanting;
B, preparation mandrel (2), the external diameter of mandrel cooperates with the internal diameter of seamless pipe, and its shape is identical with the shape of desired pipe fitting, is inserted in the seamless pipe;
C, at a high speed rotate above-mentioned cooperation workpiece, give birth to heat in the extruding of reducing place intensified pressure, when temperature reaches 650 ℃-730 ℃, with the carbide bit radial compression and move axially, make workpiece deformation with carbide bit.
2. processing method according to claim 1, when it is characterized in that rotating at a high speed, rotating speed is more than 1200 rev/mins, feed is 0.2m/r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021293392A CN1194827C (en) | 2002-09-02 | 2002-09-02 | Method for processing thin wall pipefittings with changed diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021293392A CN1194827C (en) | 2002-09-02 | 2002-09-02 | Method for processing thin wall pipefittings with changed diameter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1480270A true CN1480270A (en) | 2004-03-10 |
| CN1194827C CN1194827C (en) | 2005-03-30 |
Family
ID=34144117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021293392A Expired - Fee Related CN1194827C (en) | 2002-09-02 | 2002-09-02 | Method for processing thin wall pipefittings with changed diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194827C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042061A (en) * | 2013-01-08 | 2013-04-17 | 青岛勤德索具有限公司 | Intelligent pipe internal-diameter changing system and pipe internal-diameter changing method |
| CN104014834A (en) * | 2014-05-27 | 2014-09-03 | 江西洪都航空工业集团有限责任公司 | Thin-wall conduit machining tool |
-
2002
- 2002-09-02 CN CNB021293392A patent/CN1194827C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042061A (en) * | 2013-01-08 | 2013-04-17 | 青岛勤德索具有限公司 | Intelligent pipe internal-diameter changing system and pipe internal-diameter changing method |
| CN104014834A (en) * | 2014-05-27 | 2014-09-03 | 江西洪都航空工业集团有限责任公司 | Thin-wall conduit machining tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1194827C (en) | 2005-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103522021B (en) | A kind of spinning forming process of ultrahigh voltage shielding cover | |
| CN101100027A (en) | Petroleum drilling rod joint extrusion forming technology method | |
| CN202377448U (en) | Multifunctional horizontal ring rolling machine | |
| CN109366109A (en) | Front of the car connecting bushing processing technology | |
| CN103624502A (en) | Cold-forging plastic molding technology of brake piston | |
| CN102019303A (en) | Device and method for preparing aluminum alloy drill rod tube body | |
| CN100574970C (en) | A kind of manufacturing process of ball valve core | |
| CN104209443B (en) | Spline pin roll cold heading device and production process thereof | |
| CN108723162A (en) | A kind of method that Fluid pressure induction shapes tangential non-close variable cross-section tubular member | |
| CN101328930A (en) | Cold-extruded machining process of diesel starting shaft | |
| CN1125693C (en) | Manufacturing process of automobile gearbox combined tooth blank | |
| CN100574969C (en) | Ball valve core hydraulic expansion method | |
| CN108044324A (en) | Automatic gearbox sun gear manufacturing process and its cold forging Extruding die | |
| CN110102975A (en) | A kind of middle vehicle body connecting bushing processing technology | |
| CN107030241A (en) | A kind of swager mould and its manufacture method | |
| CN108607946A (en) | A kind of big specification straight bevel gear study on precision forging technology | |
| CN203330213U (en) | Fixture special for turning and spinning aluminum alloy | |
| CN1480270A (en) | Method for processing thin wall pipefittings with changed diameter | |
| CN216656023U (en) | Die for gasket production | |
| CN1075417C (en) | Method for mfg. of diamond thin-wall drill bit | |
| CN110102974A (en) | A kind of rear steering machine bush processing technology | |
| CN101332556A (en) | Production method of diamond compound tool for processing shoulder hole | |
| CN100493823C (en) | Processing method of full-grinding twist drill after plastic deformation, and machining and positioning apparatus | |
| CN1792486A (en) | Moving core print blank and method for manufacturing moving core print by using blank | |
| CN1465453A (en) | Method for forming steel liquid storage cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050330 |