GB308783A - Forming hollow bodies, such as tubes, by skew rolling - Google Patents
Forming hollow bodies, such as tubes, by skew rollingInfo
- Publication number
- GB308783A GB308783A GB5684/29A GB568429A GB308783A GB 308783 A GB308783 A GB 308783A GB 5684/29 A GB5684/29 A GB 5684/29A GB 568429 A GB568429 A GB 568429A GB 308783 A GB308783 A GB 308783A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blank
- rolls
- mandrel
- skew
- tubes
- 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
- 238000005096 rolling process Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
- B21B19/08—Enlarging tube diameter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
308,783. Kocks, F. March 31, 1928, [Convention date]. Rolling tubes; skew-rolling.-Seamless hollow bodies such as tubes are produced from hollow billets by skew rolling, by a process according to which the blank has imparted to it all points of application of the rolls uniform speed of movement in the direction of the axis of the work (forward running speed) and is rotated at the same angular velocity throughout the process, the rolls being designed so that a constant ratio exists between the outer radius of the blank at any point of contact with the rolls and the distance of the axis of the blank from the point where the extension of the radius intersects the axis of the roll. The length of the blank and its cross-section of area remain constant throughout the operation. The blank 17 may be drawn over a mandrel 14 having a boss 15 by a pair of skew rolls 21, 22 having feed tapers 20, the clearance S betwen the rolls and the mandrel being gradually decreased while the blank is engaged by the tapers 20 so as to produce the axial thrust. The clearance between the rolls and the mandrel is such that the cross-sectional area of the bore of the blank is equal to or slightly larger than the corresponding area of the mandrel
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE308783X | 1928-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB308783A true GB308783A (en) | 1930-08-20 |
Family
ID=6121825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5684/29A Expired GB308783A (en) | 1928-03-31 | 1929-02-20 | Forming hollow bodies, such as tubes, by skew rolling |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1778111A (en) |
| BE (1) | BE357808A (en) |
| FR (1) | FR669169A (en) |
| GB (1) | GB308783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006053773A1 (en) * | 2006-11-15 | 2008-05-29 | Sms Meer Gmbh | Method for rolling elongated product in rolling mill involves arranging number of rolls on periphery of rolling product and contact and reshape rolling product on axial extension |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014104324A1 (en) * | 2012-12-28 | 2014-07-03 | 株式会社クラレ | Drawing device and drawing method |
| CN111842743A (en) * | 2020-08-26 | 2020-10-30 | 太原科技大学 | Double-ring roller internal contact type spin rolling method for tubular workpiece |
-
0
- BE BE357808D patent/BE357808A/xx unknown
-
1929
- 1929-02-05 FR FR669169D patent/FR669169A/en not_active Expired
- 1929-02-20 GB GB5684/29A patent/GB308783A/en not_active Expired
- 1929-03-01 US US343781A patent/US1778111A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006053773A1 (en) * | 2006-11-15 | 2008-05-29 | Sms Meer Gmbh | Method for rolling elongated product in rolling mill involves arranging number of rolls on periphery of rolling product and contact and reshape rolling product on axial extension |
| DE102006053773B4 (en) * | 2006-11-15 | 2008-11-20 | Sms Meer Gmbh | Process for rolling a long product in a rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| FR669169A (en) | 1929-11-13 |
| BE357808A (en) | |
| US1778111A (en) | 1930-10-14 |
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