IE791923L - Producing seamless pipe bends - Google Patents
Producing seamless pipe bendsInfo
- Publication number
- IE791923L IE791923L IE791923A IE192379A IE791923L IE 791923 L IE791923 L IE 791923L IE 791923 A IE791923 A IE 791923A IE 192379 A IE192379 A IE 192379A IE 791923 L IE791923 L IE 791923L
- Authority
- IE
- Ireland
- Prior art keywords
- tubular
- blank material
- corepiece
- elbow
- walled
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
1. A method for spin-forming thin-walled seamless tubular elbows with any desired elbow radius, elbow angle and tube diameter from a short and thick-walled tubular blank material using a rotatable tubular elbow corepiece, characterized in that the short and thick-walled tubular blank material has the form of a section of a segment with a curvature matching the curvature of the tubular corepiece and that the blank material is fitted over the tubular corepiece and is rotated together with said corepiece according to corresponding tubular elbow radius arch-like between and through pressing rollers of a rotating pressing roller head rotating around the blank material for acting thereon, with said rotating pressing rollers acting with flow pressure onto the rotating blank material so that the same is stretched out and rolled out into a thin-walled sheet metal tubular elbow with its length elongated to many times the length of the blank material.
[EP0010057A1]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1053478A CH634238A5 (en) | 1978-10-11 | 1978-10-11 | METHOD AND MACHINE FOR FLOW PRESSING A THIN-WALLED SEAMLESS AND FOLDLESS SHEET PIPE SHEET FROM A SHORT AND THICK-WALLED PIPE SHEET BLANK. |
Publications (2)
Publication Number | Publication Date |
---|---|
IE791923L true IE791923L (en) | 1980-04-11 |
IE49621B1 IE49621B1 (en) | 1985-11-13 |
Family
ID=4364244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE1923/79A IE49621B1 (en) | 1978-10-11 | 1979-10-09 | A process and machine for producing seamless pipe bends |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0010057B1 (en) |
CA (1) | CA1123381A (en) |
CH (1) | CH634238A5 (en) |
CS (1) | CS216685B2 (en) |
DD (1) | DD146402A5 (en) |
DE (1) | DE2964544D1 (en) |
ES (1) | ES484879A1 (en) |
FI (1) | FI792882A (en) |
HU (1) | HU178179B (en) |
IE (1) | IE49621B1 (en) |
NO (1) | NO148665C (en) |
PL (1) | PL218848A1 (en) |
PT (1) | PT70295A (en) |
YU (1) | YU231279A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1223306B (en) * | 1987-10-09 | 1990-09-19 | Blm Spa | PROCEDURE AND MACHINE FOR THE PLASTIC DEFORMATION OF TUBULAR BODIES |
US4989435A (en) * | 1989-12-11 | 1991-02-05 | Kabushiki Kaisha Asahi Kinzoku Hogyosho | Method and apparatus for manufacturing curved pipe |
US5979202A (en) * | 1997-05-29 | 1999-11-09 | Blakeley Engineering Ltd. | Method and apparatus for making pipe line steel grooved-end fittings |
US7316142B2 (en) | 2004-05-21 | 2008-01-08 | Lancaster Paul B | Metal spin forming head |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2137864A (en) * | 1935-09-28 | 1938-11-22 | Taylor James Hall | Method of making pipe fittings |
US2560822A (en) * | 1945-11-08 | 1951-07-17 | Walton S Robinson | Means and method for making seamless pipe elbows |
DE1289017B (en) * | 1963-10-03 | 1969-02-13 | Lodge And Shipley Company | Centrifugal force absorption of a radially adjustable carrier for a pressure tool during operation |
US3340713A (en) * | 1965-02-11 | 1967-09-12 | James E Webb | Spin forming tubular elbows |
FR1540166A (en) * | 1967-10-09 | 1968-09-20 | Zentrale Entwicklung Konstrukt | Device for pressing parts stretched in length with symmetry of revolution |
DE2714782A1 (en) * | 1977-04-02 | 1978-10-05 | Bertrams Ag | Bender for thin-wall pipes - has mandrel built up from discs to fit in bend during external working by rollers |
-
1978
- 1978-10-11 CH CH1053478A patent/CH634238A5/en not_active IP Right Cessation
-
1979
- 1979-08-21 DE DE7979810071T patent/DE2964544D1/en not_active Expired
- 1979-08-21 EP EP79810071A patent/EP0010057B1/en not_active Expired
- 1979-09-17 FI FI792882A patent/FI792882A/en not_active Application Discontinuation
- 1979-09-24 YU YU02312/79A patent/YU231279A/en unknown
- 1979-09-26 CA CA336,443A patent/CA1123381A/en not_active Expired
- 1979-10-03 DD DD79216001A patent/DD146402A5/en unknown
- 1979-10-04 CS CS796768A patent/CS216685B2/en unknown
- 1979-10-09 HU HU79BA3865A patent/HU178179B/en unknown
- 1979-10-09 PT PT70295A patent/PT70295A/en unknown
- 1979-10-09 NO NO793232A patent/NO148665C/en unknown
- 1979-10-09 IE IE1923/79A patent/IE49621B1/en unknown
- 1979-10-10 PL PL21884879A patent/PL218848A1/xx unknown
- 1979-10-10 ES ES484879A patent/ES484879A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0010057A1 (en) | 1980-04-16 |
DD146402A5 (en) | 1981-02-11 |
PL218848A1 (en) | 1980-06-16 |
CS216685B2 (en) | 1982-11-26 |
HU178179B (en) | 1982-03-28 |
NO793232L (en) | 1980-04-14 |
ES484879A1 (en) | 1980-04-01 |
PT70295A (en) | 1979-11-01 |
CA1123381A (en) | 1982-05-11 |
EP0010057B1 (en) | 1983-01-19 |
IE49621B1 (en) | 1985-11-13 |
FI792882A (en) | 1980-04-12 |
NO148665C (en) | 1983-11-23 |
DE2964544D1 (en) | 1983-02-24 |
YU231279A (en) | 1984-04-30 |
NO148665B (en) | 1983-08-15 |
CH634238A5 (en) | 1983-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE244081T1 (en) | SYSTEM FOR RETRACTING A PIPE WALL | |
IE791923L (en) | Producing seamless pipe bends | |
CA2082238A1 (en) | Process and Apparatus for the Continuous Production of Helical or Annular Corrugated Metal Tubes | |
US3451243A (en) | Process for forming serrated flanged pipe | |
JPS56141902A (en) | Method and apparatus for manufacturing seamless pipe by mandrel hot rolling | |
US2818084A (en) | Irrigation pipe | |
JPS6153131B2 (en) | ||
JPS555180A (en) | Bending method of pipe | |
GB1425615A (en) | Method of and apparatus for manufacturing corrugated sheet material | |
SU595031A1 (en) | Tube-drawing method | |
JPH0347935B2 (en) | ||
GB1040125A (en) | Apparatus for corrugating metal tubing | |
IE37544B1 (en) | Shaft clamping apparatus | |
GB1340237A (en) | Method of reforming the ends of helically grooved or helically corrugated tubular sheet metal duct sections | |
DE3070758D1 (en) | Methods and devices for rolling-in tubes coated on the interior | |
ES8400263A1 (en) | Method for manufacture of seamless metal tubing by continuous rolling | |
JP2640863B2 (en) | Double pipe manufacturing method | |
JPS57177812A (en) | Manufacture of large sized seamless pipe and its device | |
CN2158024Y (en) | Seamless straight-pipe section bend | |
GB1326316A (en) | Device for corrugating tubular metal parts by rolling | |
JPS5844884Y2 (en) | Forming roll of pipe making equipment | |
GB772662A (en) | Method and apparatus for producing continuous helically grooved pipes and hoses of strip-like material | |
JPS5838250B2 (en) | Bending method and device for metal tube with circular cross section | |
SU819483A2 (en) | Method of applying paint primer onto tube outer surface | |
JPS57190708A (en) | Rolling device for reducing wall thickness of pipe end of seamless steel pipe |