SU945203A1 - Method for heat straightening tubular workpiece - Google Patents
Method for heat straightening tubular workpiece Download PDFInfo
- Publication number
- SU945203A1 SU945203A1 SU802957785A SU2957785A SU945203A1 SU 945203 A1 SU945203 A1 SU 945203A1 SU 802957785 A SU802957785 A SU 802957785A SU 2957785 A SU2957785 A SU 2957785A SU 945203 A1 SU945203 A1 SU 945203A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- workpiece
- mandrel
- thermal expansion
- coefficient
- tubular workpiece
- Prior art date
Links
Landscapes
- Forging (AREA)
Description
(54) СПОСОБ ТЕРМИЧЕСКОЙ ПРАВКИ ТРУБЧАТОЙ ЗАГОТОВКИ(54) METHOD OF THERMAL CORRECTION OF TUBULAR BILLETS
1 .one .
Изобретение относитс к обработке металлов давлением, в частности к способам термической правки Изделий, и может быть использовано при изготовлении тонкостеннь1х труб с высокой точностью.The invention relates to the processing of metals by pressure, in particular to methods of thermal straightening of the Products, and can be used in the manufacture of thin-walled pipes with high accuracy.
Известен способ правки трубчатых изделий, заключающийс в отжиге на оправке, коэффициент термического расишрени которой больше , чем у материала заготовки CllThere is a known method of straightening tubular products, consisting in annealing on the mandrel, the thermal coefficient of which is greater than that of the workpiece material Cll
Недостатком известного способа вл етс невозможность правки изделий в осевом направлении .The disadvantage of this method is the impossibility of straightening products in the axial direction.
Наиболее близким к предлагаемому по технической сущности вл етс способ термической правки трубчатой заготовки, включающий установку заготовки на оправку, коэффициент термического расширени которой больше коэффициента термического расширени материала заготовки, нагрев и охлаждение 2 .The closest to the proposed technical essence is a method of thermal straightening of a tubular billet, including the installation of a billet on a mandrel, the thermal expansion coefficient of which is greater than the thermal expansion coefficient of the billet material, heating and cooling 2.
Недостауком известного способа вл етс то, что при нагреве диаметр оправки увеличиваетс , что приводит к пластической деформации трубы по форме оправки. Таким способом можно изготовить трубчатые издел.и сThe disadvantage of the known method is that when heated, the diameter of the mandrel increases, which leads to plastic deformation of the pipe in the shape of the mandrel. In this way you can make tubular products. And
точностью по кривизне оси самой О1фавки. Дальнейшее повышение точности изготовлени изделий требует повьииени точности изготовлени оправки и усложнение ее конструкции.accuracy on the curvature of the axis of O1 alphabet. Further improvement in the accuracy of the manufacture of products requires an increase in the accuracy of manufacture of the mandrel and the complexity of its design.
Цель изобретени - повышение точности оправки.The purpose of the invention is to improve the accuracy of the mandrel.
Поставленна цель достигаетс способом включающим установку заготовки на оправку, коэффициент термического расширени которой больше коэффициента термического расш1фе10 ни материала заготовки, нагрев и охлаждеиие, концы заготовки предварительно жестко фиксируют на оправке.The goal is achieved by the method of installing the workpiece on the mandrel, the thermal expansion coefficient of which is greater than the coefficient of thermal expansion of the material of the workpiece, heating and cooling, the ends of the workpiece are rigidly fixed on the mandrel previously.
Кроме того, концы заготовки фиксируют с In addition, the ends of the workpiece is fixed with
15 помощью охватывающих колец с коэффициентом термического расширени меньшим, чем коэффициент термического расширени материала оправки.15 using female rings with a thermal expansion coefficient less than the thermal expansion coefficient of the mandrel material.
На чертеже изображено положение детали The drawing shows the position of the part
20 при ее правке.20 when editing it.
Деталь содержит: оправку 1 с помощью фиксаторов, выполненных в виде коЛед из материала с коэффициентом термического .рас :The part contains: mandrel 1 using clamps, made in the form of a ball of material with a coefficient of thermal. Ras:
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802957785A SU945203A1 (en) | 1980-07-28 | 1980-07-28 | Method for heat straightening tubular workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802957785A SU945203A1 (en) | 1980-07-28 | 1980-07-28 | Method for heat straightening tubular workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU945203A1 true SU945203A1 (en) | 1982-07-23 |
Family
ID=20908775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802957785A SU945203A1 (en) | 1980-07-28 | 1980-07-28 | Method for heat straightening tubular workpiece |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU945203A1 (en) |
-
1980
- 1980-07-28 SU SU802957785A patent/SU945203A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE8005195L (en) | SET FOR SELECTING RODS OR ROLLING STRENGTHS WITH LOWER ENERGY CONSUMPTION | |
| CN112371751A (en) | Processing method for improving yield of large-outer-diameter thin-wall thick-aluminum alloy pipe | |
| SU945203A1 (en) | Method for heat straightening tubular workpiece | |
| ES469259A1 (en) | Method for mechanical removal of tensile stresses in a tube which has been expanded in a support | |
| GB1466500A (en) | Methods of producing high tensile strength and high toughness pipe bends | |
| JPS555180A (en) | Bending method of pipe | |
| CN110369546B (en) | Method for producing large-diameter titanium alloy hot-rolled seamless pipe | |
| CN105567940A (en) | Method for improving flaring and bending deformation resisting capacity of metal pipe | |
| SU816590A1 (en) | Method of producing tubes with beaded end | |
| SU122126A1 (en) | Method for stamping shaped parts of complex shape from tubular blanks | |
| SU1452126A1 (en) | Method of thermal straightening of tubular blank | |
| FR2117745A1 (en) | Tube bending - by internally heating a small square section of the tube as it is bent | |
| SU645945A1 (en) | Method of bending glass pipes | |
| SU841704A1 (en) | Method of straightening elongated parts | |
| GB641659A (en) | Methods of and machines for forming hollow metal articles | |
| JPS63115643A (en) | Working method for end part of steel pipe | |
| JPS5952690B2 (en) | Manufacturing method for large-diameter heat-treated steel pipes | |
| JPS54116306A (en) | Heating method for steel pipe u-bend by applying electric current directly | |
| SU1540886A1 (en) | Method of producing precision tubes and profiles from difficultly deformed metals and alloys | |
| GB955154A (en) | Improvements in and relating to finned tubes and method for the production thereof | |
| SU487147A1 (en) | Method of making thin-walled welded pipes | |
| FR2431067A2 (en) | Metal working process for mfr. of hollow head pivot - by cold forging and redressing of billet from vibration tempered ring | |
| SU768518A1 (en) | Method of mandrel-free drawing and straightening of thin walled tubes | |
| SU119161A1 (en) | The method of cold tube rolling balls | |
| NL7906079A (en) | Metal pipe bending system - moves pipes through heater and cooler units causing plastic deformation whilst bending during compensating radius deviation |