GB1345802A - Calibration of tubes - Google Patents
Calibration of tubesInfo
- Publication number
- GB1345802A GB1345802A GB5179071A GB5179071A GB1345802A GB 1345802 A GB1345802 A GB 1345802A GB 5179071 A GB5179071 A GB 5179071A GB 5179071 A GB5179071 A GB 5179071A GB 1345802 A GB1345802 A GB 1345802A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- tool
- mandrel
- radius
- calibrated
- 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.)
- Expired
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
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Cleaning In General (AREA)
Abstract
1345802 Drawing; sizing bores CHABAS & BESSON SA 8 Nov 1971 [6 Nov 1970] 51790/71 Headings B3P B3H and B3Q The inner or outer surface of a tube 22 is calibrated by a tool having a hard working surface which has a curvature in axial section, the length of the curve in contact with the tube surface being small compared with the transverse dimension of the tube surface and the radius of curvature of the curve being small compared with the radius of curvature of the tube surface. The latter is displaced by a distance which is small compared with the thickness of the tube wall, the other tube surface being unconstrained in the region of the tool. The angle between the straight line joining the points where the tube surface comes into and leaves contact with the tool and the direction of motion of the tool may be less than 12 of 12-20 degrees. In one embodiment, Fig. 8, a steel tube 22 to be calibrated, together with a ring 23 and half shells 24, are mounted on a shaft 11 which is secured to a piston-rod 4 of an hydraulic cylinder 3. The cylinder 3 is actuated to push the tube 22 through a die 15 which has an outer conical surface and an inner working surface defined by a rounded shoulder having a radius of 25-35 mm. When the outer surface of the tube 22 has been drawn by the die 15, the half shells 24 are removed, the ring 23 is pushed back and a mandrel 25, Fig. 11, having a rounded working surface with a radius preferably between 3-6 mm., is screwed into the end of the shaft 11. The rounded surface of the mandrel 25 may be other than circular such as elliptical or oval. Members 18 are pivoted about pivots (19) (Fig. 3, not shown) into a closed position 30 that when the mandrel 25 is pulled by the piston rod 4 through the bore of the tube 22 to calibrate its inner surface, the one end of the tube 22 engages the members 18. The process may be repeated using a different mandrel 25. In another embodiment, Fig. 15, the tube is calibrated by drawing it between a drawing die and a cylindrical mandrel 31 having a calibrating tool 33 connected to it.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7039913A FR2112126B1 (en) | 1970-11-06 | 1970-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1345802A true GB1345802A (en) | 1974-02-06 |
Family
ID=9063818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5179071A Expired GB1345802A (en) | 1970-11-06 | 1971-11-08 | Calibration of tubes |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3779064A (en) |
| JP (1) | JPS5546241B1 (en) |
| BE (1) | BE774752A (en) |
| DE (2) | DE2153937C3 (en) |
| ES (1) | ES396694A1 (en) |
| FR (1) | FR2112126B1 (en) |
| GB (1) | GB1345802A (en) |
| IT (1) | IT942791B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2800346C1 (en) * | 2023-01-31 | 2023-07-20 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Device for eliminating ovality of shells |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063439A (en) * | 1970-11-06 | 1977-12-20 | Chabas & Besson S.A. | Apparatus for calibrating and surfacing tubes |
| DE2758136C2 (en) * | 1977-12-27 | 1984-09-13 | Hunger, Walter, 8700 Würzburg | Drawbench for the production of precision steel tubes without loss of fishing |
| US4148207A (en) * | 1978-02-21 | 1979-04-10 | The Babcock & Wilcox Company | Drawing technique |
| JPS62110462A (en) * | 1985-11-08 | 1987-05-21 | Mitsubishi Electric Corp | Longitudinal welding jig for motor frame main body |
| US7895875B2 (en) * | 2006-08-30 | 2011-03-01 | Alcoa Inc. | Methods and systems for reducing tensile residual stresses in compressed tubing and metal tubing products produced from same |
| US9937545B1 (en) * | 2017-05-16 | 2018-04-10 | Kooima Company | Mandrel support device for tube bending machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT1914B (en) * | ||||
| GB189817085A (en) * | 1898-08-08 | 1898-12-10 | Curt Maquet | Process and Apparatus for Fixing Sheet Metal Rings on Metallic Tubes. |
| US3036696A (en) * | 1959-02-24 | 1962-05-29 | Reisholz Stahl & Roehrenwerk | Method of producing seamless tubular articles |
-
1970
- 1970-11-06 FR FR7039913A patent/FR2112126B1/fr not_active Expired
-
1971
- 1971-10-29 BE BE774752A patent/BE774752A/en unknown
- 1971-10-29 DE DE2153937A patent/DE2153937C3/en not_active Expired
- 1971-10-29 DE DE19712166438 patent/DE2166438A1/en active Pending
- 1971-10-29 US US00193632A patent/US3779064A/en not_active Expired - Lifetime
- 1971-11-05 ES ES396694A patent/ES396694A1/en not_active Expired
- 1971-11-05 IT IT70627/71A patent/IT942791B/en active
- 1971-11-06 JP JP8800971A patent/JPS5546241B1/ja active Pending
- 1971-11-08 GB GB5179071A patent/GB1345802A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2800346C1 (en) * | 2023-01-31 | 2023-07-20 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Device for eliminating ovality of shells |
Also Published As
| Publication number | Publication date |
|---|---|
| BE774752A (en) | 1972-05-02 |
| US3779064A (en) | 1973-12-18 |
| ES396694A1 (en) | 1974-12-16 |
| FR2112126A1 (en) | 1972-06-16 |
| JPS5546241B1 (en) | 1980-11-21 |
| DE2153937A1 (en) | 1972-07-13 |
| IT942791B (en) | 1973-04-02 |
| DE2153937C3 (en) | 1975-05-22 |
| FR2112126B1 (en) | 1974-02-01 |
| DE2153937B2 (en) | 1974-10-10 |
| DE2166438A1 (en) | 1974-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |