US1913711A - Process for the production of forged shafting - Google Patents
Process for the production of forged shafting Download PDFInfo
- Publication number
- US1913711A US1913711A US327947A US32794728A US1913711A US 1913711 A US1913711 A US 1913711A US 327947 A US327947 A US 327947A US 32794728 A US32794728 A US 32794728A US 1913711 A US1913711 A US 1913711A
- Authority
- US
- United States
- Prior art keywords
- forged
- shafting
- production
- rolls
- bar
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title description 13
- 238000004519 manufacturing process Methods 0.000 title description 6
- 238000005242 forging Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 1
Images
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
Definitions
- Hitherto forged shafting has been produced either under the hammer or the press from a billet by rough forging and then a finishing forging and 'planishing. It is well known that the planishing of round forged )ieces is com arcd with the revious for Ill process, a tedious and expensive work. To this must be added the uneconomical utilization of the machine used, with respect to the driving power, as also the unfavorable mass movements of the machine caused by the short and quickly repeated planishingstrokes, which after a time tend to loosen and disorganize the separate parts of the hammer or 35 the press and their foundations.
- the shaftlng rough forged as hitherto is brought between two or more rolls of a suitable rolling mill, which may be adjusted 53 to a sufficient inclination, whereby the rolls polish the outer surface of the shafting by rotating.
- a suitable rolling mill which may be adjusted 53 to a sufficient inclination, whereby the rolls polish the outer surface of the shafting by rotating.
- the finishing work done in this way by the mill takes a very considerably shorter time than that done under the hammer or the press by means of the hitherto usual process.
- Figure 1 is a front view
- Figure 2 is a side view
- Figure 3 an upper view of a rolling mill for planishing the rough forged shafting.
- - 1 designates the rough forged shafting which is planished by passing between the 53 rotating 0 illustrated in the accom-' lique rolls 2 and 3 and which thus obtains a completel smooth surface.
- 4 is a support or an auxi iary roll for supporting the work 1 during the planishing process.
- the method of producing a uniformly accurate round shaft including the use'of opposed oblique rolls, which in a combination of steps, consists in first forging a bar by hammering and pressing the same as much 00 as possible for the twofold pur ose of formi ng said bar approximately to nal form and dimensions and also of imparting desirable structural characteristics to the lnterior of the bar, and then finally shaping and polishing said bar into finished shape while pre-v serving the previously attained characteristics thereof, by rotating said shaft with respect to said oblique rolls.
- the method of producing a uniformly 7 accurate round shaft including the use of oblique rolls, which in a combination of steps, conslsts in first forging a bar by hammering and pressing the same as much as possible for the two. fold purpose of forming said bar apv proximately to final. form and dimensions and also of imparting desirable structural characteristics to the interior of the bar, and then finally shaping and polishing said bar into finished shape while preserving the pre viously attained characteristics thereof, by rotating said shaft with respect to said oblique rolls in contact relation with portions of said rolls intermediate the ends thereof.
- ashaft having a forged interior structure completely surrounded by and confined within a smooth rolled and polished exterior structure.
- a shaft having a forged interior structure completely surrounded by and confined within a smooth rolled exterior structure.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
June 13, 1933. E RAMP 1,913,711
PROCESS FOR THE PRODUCTION OF FORGED S HQFTING Filed Dec. 22, 1928 Patented June 13, 1933;
PATENT OFFICE EUGEN KAMP, F DORTMUND, GERMANY PROCESS FOR THE PRODUCTION OF FORGED SHAFTING Application filed December 22, 1928, Serial No. 327.947, and in Germany June26, 1928.
Hitherto forged shafting has been produced either under the hammer or the press from a billet by rough forging and then a finishing forging and 'planishing. It is well known that the planishing of round forged )ieces is com arcd with the revious for Ill process, a tedious and expensive work. To this must be added the uneconomical utilization of the machine used, with respect to the driving power, as also the unfavorable mass movements of the machine caused by the short and quickly repeated planishingstrokes, which after a time tend to loosen and disorganize the separate parts of the hammer or 35 the press and their foundations.
By the new process according tothe invention the shaftlng rough forged as hitherto, is brought between two or more rolls of a suitable rolling mill, which may be adjusted 53 to a sufficient inclination, whereby the rolls polish the outer surface of the shafting by rotating. In this process it is of no importance whether the shafting makes the axial forward movement or whether on the contrary this movement is made by the mill. The finishing work done in this way by the mill takes a very considerably shorter time than that done under the hammer or the press by means of the hitherto usual process.
An important advantage of the new process consists in that the completed'product shows a much more true and even shape, than was previously the case. For this reason much less work may be reckoned with in the future preparation of shafting.
A process has been found by the invention which unites the improvement in quality produced by the forging with the more accurate work of the rolls. The new process therefore is a much more profitable one than those previously used.
The invention is panying drawing by way of example. Figure 1 is a front view, Figure 2 is a side view, and Figure 3 an upper view of a rolling mill for planishing the rough forged shafting.
- 1 designates the rough forged shafting which is planished by passing between the 53 rotating 0 illustrated in the accom-' lique rolls 2 and 3 and which thus obtains a completel smooth surface. 4 is a support or an auxi iary roll for supporting the work 1 during the planishing process.
What I claim and desire to secure by Letters Patent of the United States is:
1. The method of producing a uniformly accurate round shaft, including the use'of opposed oblique rolls, which in a combination of steps, consists in first forging a bar by hammering and pressing the same as much 00 as possible for the twofold pur ose of formi ng said bar approximately to nal form and dimensions and also of imparting desirable structural characteristics to the lnterior of the bar, and then finally shaping and polishing said bar into finished shape while pre-v serving the previously attained characteristics thereof, by rotating said shaft with respect to said oblique rolls. 1
2. The method of producing a uniformly 7 accurate round shaft, including the use of oblique rolls, which in a combination of steps, conslsts in first forging a bar by hammering and pressing the same as much as possible for the two. fold purpose of forming said bar apv proximately to final. form and dimensions and also of imparting desirable structural characteristics to the interior of the bar, and then finally shaping and polishing said bar into finished shape while preserving the pre viously attained characteristics thereof, by rotating said shaft with respect to said oblique rolls in contact relation with portions of said rolls intermediate the ends thereof.
3. As an article of accurate and uniform manufacture, a shaft having interior forged structural characteristics'and smooth rolled and polished exterior structure imposed upon said interior structure.
4. As an article of uniform and accurate manufacture, ashaft having a forged interior structure completely surrounded by and confined within a smooth rolled and polished exterior structure. a
5. As an article of uniform and accurate manufacture, a shaft having a forged interior structure completely surrounded by and confined within a smooth rolled exterior structure.
I EUGEN KAMP.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1913711X | 1928-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1913711A true US1913711A (en) | 1933-06-13 |
Family
ID=7749021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US327947A Expired - Lifetime US1913711A (en) | 1928-06-26 | 1928-12-22 | Process for the production of forged shafting |
Country Status (1)
Country | Link |
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US (1) | US1913711A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3693390A (en) * | 1967-11-04 | 1972-09-26 | Brueninghaus Gmbh Stahlwerke | Method and apparatus for the production of elongated conical metallic articles |
-
1928
- 1928-12-22 US US327947A patent/US1913711A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3693390A (en) * | 1967-11-04 | 1972-09-26 | Brueninghaus Gmbh Stahlwerke | Method and apparatus for the production of elongated conical metallic articles |
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