US3492849A - Rolling of metal billets - Google Patents
Rolling of metal billets Download PDFInfo
- Publication number
- US3492849A US3492849A US660386A US3492849DA US3492849A US 3492849 A US3492849 A US 3492849A US 660386 A US660386 A US 660386A US 3492849D A US3492849D A US 3492849DA US 3492849 A US3492849 A US 3492849A
- Authority
- US
- United States
- Prior art keywords
- throat
- rollers
- rod
- rolling
- billet
- 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
Images
Classifications
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/06—Corrugating tubes transversely, e.g. helically annularly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/42—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for step-by-step or planetary rolling
-
- 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
- B21B19/12—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 parallel to the axis of the work
-
- 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
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides
-
- 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
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/005—Worms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/10—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons knives; sickles; scythes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
Definitions
- the invention concerns apparatus for rolling metal rod (including tube) to reduce it, and contemplates the passage of the rod through an elongated throat that is lined with working formations that operate on the rod, the working formations being rotated relatively to the rod about at least one axis that is substantially parallel to the direction of elongation of the throat. Relative rotation takes place between the rod and the throat during the operation.
- the working formations may be undulations in the surfaces of rollers extending along the throat or small rolling elements contained within the bore which defines the throat.
- This invention relates to the rolling of rod to reduce it in cross-section.
- the rod may be solid or tubular.
- the rolling of rod for this purpose is carried out in successive stages or passes.
- the rod In each pass, the rod is fed through a throat defined between two rollers which have their axes inclined substantially at right angles to the direction of advance of the rod, the surfaces of the rollers being profiled to vary the cross-section of the rod by a relatively small amount.
- 13 or passes may be used, depending on the total reduction or variation required.
- Some of the passes may, for example, be round-oval passes or diamond-oval passes, the names corresponding to the cross-sectional shape of the rod before and after the pass. Because of the large areas of contact between rod and rollers during each pass, the mill requires high-power driving equipment which must be duplicated at successive stages.
- the object of the invention is to provide novel compact apparatus for rolling rod which permits extensive reduction in cross-section in a single pass, so that a finished or nearly finished article may be produced rapidly and economically.
- apparatus for reducing rod consists of means defining an elongated convergent throat, working formations lining the throat along its length, the working formations being rotatable about at least one axis, which axis is substantially parallel to the direction of elongation of the throat, means to pass a rod through the throat, to be rolled by the working formations, and means to cause rotation of the rod relatively to the throat during its passage through the throat.
- final Working formations define between them a substantially cylindrical throat to produce a round rod.
- the throat is defined by at least two, and preferably three, rollers that are mounted with their axes substantially parallel to the direction of elongation of the throat, the working formations being undulations such as annular or helical scrolls in the surfaces of the rollers.
- the working formations are small work rollers rotatable about their axes and arranged to trace out a scrolled path around the rod as it advances through the throat and simultaneously rotates within it; or to be skewed and running in parallel grooves.
- the rod is in some cases rotated by external means while the throat is kept stationary, or the rod may be held against rotation while the throat itself is rotated. There may be various combinations of the aforementioned cases.
- FIGURE 1 is a semi-schematic longitudinal view through one form of rolling apparatus employing at least two rollers with circumferentially grooved surfaces;
- FIGURE 2 shows a view similar to that of FIGURE 1 of a second form of rolling apparatus having helical scrolls
- FIGURE 3 is a similar view showing an embodiment with rollers set in parallel grooves in a bore
- FIGURE 4 shows an embodiment similar to that of FIGURE 3 but with a divided bore
- FIGURE 5 shows another form of apparatus with small work rollers lining a bore of a casing and seated in helical grooves in the bore;
- FIGURES 6 to 8 show alternative forms of rollers for use with some of the embodiments described above;
- FIGURES 9 to 11 show semi-schematic end views of possible arrangements for some of the embodiments described above.
- FIGURE 12 is a side View of a scroll made by the machine of the invention.
- rollers 12, 14 define a throat between them.
- the roller 12 is shown in section. They are tapered and their axes are inclined towards each other to define between the rollers a converging throat.
- the rollers are formed on their surfaces with working formations which are a series of annular grooves 16.
- a rod 18 is offered to the mouth 20 of thethroat and its propulsion through the throat is aided by an external force feed indicated schematically at 22.
- the rollers are rotated in the same direction and, as the rod 18 is propelled through the throat, it in turn rotates and has imposed on it a spiral formation, as seen in the drawing.
- the grooves 16 are preferably spaced progressively further apart in the direction of convergence of the throat, to accommodate the progressive lengthening of the rod, so that the helical formation imposed on the rod becomes of progressively larger pitch.
- the lands 24 are smooth and parallel, so that the rod emerges from the throat as a cylinder. Once it has emerged, the passage of the billet may be assisted by pulling on the rod by means indicated schematically at 28. The operating conditions will determine whether the helix imposed on the billet is single or multi-start, but since the terminal part 23 of the throat is smooth and parallel, this is of no consequence as the spirals rolled into the rod are smoothed out and disappear.
- the grooves may be provided right up to the ends of the rollers (by eliminating the lands 24), in which case the end product Will be a helix of increasing pitch, as seen in FIGURE 12.
- Such a product may be cut into lengths and put to such uses as the rotors of pumps.
- FIGURE 2 illustrates a modified form of apparatus in which the rollers 13, 15 are tapered and formed with identical helical scrolls 30 but Which are in phase With respect to each other.
- the axes of the rollers are parallel to each.
- the rollers act as Archimedean screws, which, once they have gripped the end of the billet 19, draw it through the throat and, in the process, impose on it annular formation of steadily decreasing diameter but increasing space. Forced feed is unnecessary.
- the scrolled grooves terminate near to the end of the throat to leave smooth 3 parallel lands 32, as in FIGURE 1.
- the final product is a cylinder, as in the case of FIGURE 1.
- a cylindrical casing 34 rotatable about its axis, has a stepped bore 36, formed with parallel grooves 38 which are progressively further apart and which accommodate a series of small work rollers 40 that are sufficiently loosely held to enable them to skew; that is to take up a position in which their axes are inclined to the axis of the rod.
- the rollers 40 are preferably held in cages (not illustrated).
- a rod 21 is pushed through the throat by means indicated schematically at 33, while the casing 34 is rotated, to impose on the rod a helix, as in the case of FIGURE 1.
- a pull on the reduced rod is exerted by means indicated at 35.
- the end product is a round rod if, as shown, the end rollers 44 are parallel to roll out the helix in the billet.
- This embodiment has the advantage over the embodiment of FIGURES l and 2 that the grooved and tapered casing 34 is easier to fabricate than the rollers of FIGURES 1 and 2, and that the series of small rollers 40, 44 is readily replaceable.
- FIGURE 4 shows a modified form of the apparatus of FIGURE 3.
- the casing 34 of FIGURE 3 is divided into three sections, 34a, 34b and 34c, but retains the stepped bore grooves 38, rollers 40, 44 and'propulsion means 33 and 35.
- the divided casing permits the sections 34a, 34b and 340 to be rotated at different speeds, and thus to harmonise with the formation of the helix and increasing axial speed of the bar 21.
- rollers have annular grooves and are arranged with their axes parallel, the billet must be forced-fed. If the same rollers are obliquely arranged, (i.e. slightly otf-parrell) the mill itself will draw the rod through the throat, and force-feeding will be either unnecessary or merely auxiliary. With helically grooved rollers, whether parallel or oblique, the rollers themselves provide the driving power to propel the billet through the throat, or at least contribute most of the force required.
- rollers will be called upon to resist displacement by very large forces as the billets advance through the throat.
- back-up rollers may be provided at intervals by discontinuing the grooves or scroll-s for a short distance to provide smooth surfaces on which the backup rollers bear, as will be described in connection with FIGURES 10 and 11.
- FIGUR'ES 5 A further development is seen in FIGUR'ES 5.
- a cylindrical casing 50 with a tapered bore 52 is formed with an internal scroll 54 of substantially sawtooth profile but with the apex 56 of the groove cavity-rounded; and within the scroll is located a series of balls 58 which line the throat provided by the bore.
- a billet 57 offered to the big end of the throat is nipped by the balls and entrained through the throat while the casing 50 is rotated. The natural elongation of the billet 57 as it is reduced in diameter.
- the end of the scroll is parallel, as shown at 60, to produce an end product which is a cylindrical rod, as seen at 62. It is an advantage to exert a continuous axial force, such as a pull on the issuing rod by means indicated schematically at 64.
- the balls of FIGURES 5 may be rep-laced by elements such as shown in FIGURES 6 to 9.
- the elements have diametrally opposed stub axles 66 which roll on the lands of the scroll.
- the elements are barrel-type rollers which are engaged in a scroll of suitable profile.
- the throat may be divided up into sections in each of which elements are recirculated. This construction may be used with advantage to cool the elements which, if they have to traverse the whole length of the throat, may become overheated.
- FIGURE 11 shows such a system with back-up rollers 68 supporting the juxtaposed rollers 29 surrounding the billet 53; and, of course, backup rollers may be provided in the two-roiler system to FIGURE 10.
- Apparatus for rolling rod to reduce it comprising a housing, a bore through the housing forming an elongated convergent throat, rollers lining the throat along its length, the rollers being rotatable respectively about axes which are substantially parallel to the direction of elongation of the throat, means to pass a rod through the throat to be rolled by the rollers, and means to cause rotation of the rod relative to the throat during its passage through the throat.
- rollers are mounted in a helical groove in the bore, and are adapted to advance along the bore with passage of the rod through the throat.
- rollers are balls.
- rollers are nonspherical in shape.
- rollers in the housing at the end portion of the throat are cylindrical and are of greater axial length than the remaining rollers.
- Apparatus for reducing the outside diameter of an elongated workpiece having a cylindrical outer surface comprising a throat having an inlet and an outlet and through which a workpiece may pass, and within the throat convex working means which are spaced from one another in any one axial plane of the throat on one side of the axis of the throat to provide a plurality of undulations along the length of the throat in such plane, the distance radially of the throat between the crests of adjacent undulations being small at the inlet to the throat and increasing toward the center of the throat and then becoming small again toward the outlet from the throat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Metal Rolling (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA665031 | 1966-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3492849A true US3492849A (en) | 1970-02-03 |
Family
ID=25561013
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US660245A Expired - Lifetime US3533260A (en) | 1966-08-22 | 1967-08-14 | Rolling of metal billets |
US660247A Expired - Lifetime US3514985A (en) | 1966-08-22 | 1967-08-14 | Profiling of metal billets |
US660386A Expired - Lifetime US3492849A (en) | 1966-08-22 | 1967-08-14 | Rolling of metal billets |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US660245A Expired - Lifetime US3533260A (en) | 1966-08-22 | 1967-08-14 | Rolling of metal billets |
US660247A Expired - Lifetime US3514985A (en) | 1966-08-22 | 1967-08-14 | Profiling of metal billets |
Country Status (11)
Country | Link |
---|---|
US (3) | US3533260A (nl) |
AT (1) | AT280018B (nl) |
BE (1) | BE702873A (nl) |
CA (1) | CA921294A (nl) |
CH (1) | CH466193A (nl) |
DE (6) | DE1975713U (nl) |
ES (1) | ES344113A1 (nl) |
FR (3) | FR1551913A (nl) |
GB (3) | GB1198117A (nl) |
NL (1) | NL6711546A (nl) |
SE (3) | SE328539B (nl) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3940963A (en) * | 1975-01-20 | 1976-03-02 | New York Wire Mills Corporation | Self-compensating die |
FR2479714A1 (fr) * | 1980-04-03 | 1981-10-09 | Bruss Polt I | Procede de fabrication de microfils, dispositif pour la mise en oeuvre dudit procede et microfils obtenus par ledit procede |
US6718809B1 (en) * | 1998-01-10 | 2004-04-13 | General Electric Company | Method for processing billets out of metals and alloys and the article |
US20040112112A1 (en) * | 2001-04-04 | 2004-06-17 | Glukhov Dmitry Evgenievich | Method for producing blanks having fine-grain structure |
CN112916620A (zh) * | 2021-01-14 | 2021-06-08 | 王克宇 | 一种GCr15辊套的锻造工艺 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3847004A (en) * | 1971-03-25 | 1974-11-12 | Bringewald Process Corp | Apparatus and method for applying pressure and die and method for forming a part |
DE2418454B2 (de) * | 1974-04-17 | 1977-06-08 | Schloemann-Siemag AG, 4000 Düsseldorf | Mehradrige drahtstrasse fuer hohe produktionsleistung und grosse bundgewichte |
DE2723001A1 (de) * | 1977-05-20 | 1978-11-30 | Achim Ing Grad Nitschke | Verfahren und vorrichtung zum herstellen eines hohlkoerpers |
NL7713195A (nl) * | 1977-11-30 | 1979-06-01 | Philips Nv | Werkwijze en inrichting voor het vervaardigen van een hydrodynamisch groeflager alsmede een groeflager op die wijze vervaardigd. |
DE2940473A1 (de) * | 1978-04-07 | 1981-01-15 | Nippon Steel Corp | Verfahren und vorrichtung zur herstellung von metallprofilen |
JPS611966Y2 (nl) * | 1979-10-22 | 1986-01-22 | ||
FR2482484A1 (fr) * | 1980-05-14 | 1981-11-20 | Renault | Outil de faconnage par roulage d'une rainure de clavetage a l'interieur d'une piece cylindrique |
GB8419187D0 (en) * | 1984-07-27 | 1984-08-30 | Wilson A I | Rolling machine |
FR2576228B1 (fr) * | 1985-01-23 | 1989-12-01 | Escofier Tech Sa | Procede et dispositif pour la realisation de gorges sur une paroi de revolution |
JPH0613123B2 (ja) * | 1986-01-30 | 1994-02-23 | 日本冶金工業株式会社 | プラネタリ−ミルライン圧延方法 |
NL8902357A (nl) * | 1989-09-21 | 1991-04-16 | Philips Nv | Inrichting voor het vervaardigen van een groeflager, alsmede werkwijze voor het vervaardigen van een groeflager, waarbij gebruik wordt gemaakt van de inrichting. |
CH687597A5 (de) * | 1993-02-25 | 1997-01-15 | Grob Ernst Fa | Verfahren zur Zahnstangenherstellung, danach hergestellte Zahnstange und Vorrichtung zur Verfahrensdurchfuehrung. |
US5765419A (en) * | 1994-06-25 | 1998-06-16 | Ernst Grob Ag | Method and apparatus for a rolling of hollow articles |
EP0955110B1 (de) * | 1998-05-07 | 2004-04-07 | Leico GmbH & Co. Werkzeugmaschinenbau | Verfahren zum Drückwalzen und Drückwalzvorrichtung |
IT1303739B1 (it) * | 1998-11-11 | 2001-02-23 | Fata Automation | Dispositivo riformatore per elettrodi di saldatura |
US20060230802A1 (en) * | 2005-04-14 | 2006-10-19 | Itt Manufacturing Enterprises, Inc. | Apparatus for making grooved endform |
US20110158767A1 (en) * | 2009-12-29 | 2011-06-30 | Ohio Rod Products | Reduced material, content fasteners and systems and methods for manufacturing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US576822A (en) * | 1897-02-09 | The morris | ||
US767314A (en) * | 1902-10-14 | 1904-08-09 | Anton Richard | Rolling-mill. |
US2358307A (en) * | 1942-08-29 | 1944-09-19 | Clarence L Dewey | Tube reducing machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US231094A (en) * | 1880-08-10 | File-cutting machine | ||
US798448A (en) * | 1904-02-15 | 1905-08-29 | Alexander Pogany | Mechanism for corrugating tubes. |
US1929987A (en) * | 1930-06-09 | 1933-10-10 | Alice F Mead | Rod reducing apparatus |
US2565780A (en) * | 1946-04-26 | 1951-08-28 | Nat Tube Co | Roller die |
US2978933A (en) * | 1958-03-05 | 1961-04-11 | Sendzimir Tadeusz | Beambacked planetary rolling mill |
US2988937A (en) * | 1958-11-12 | 1961-06-20 | Nowakowski Peter Leo | Tube reducing mill |
US3348401A (en) * | 1964-08-14 | 1967-10-24 | Lodge & Shipley Co | Methods and equipment for the widening of stock |
-
1967
- 1967-08-14 US US660245A patent/US3533260A/en not_active Expired - Lifetime
- 1967-08-14 SE SE11427/67A patent/SE328539B/xx unknown
- 1967-08-14 US US660247A patent/US3514985A/en not_active Expired - Lifetime
- 1967-08-14 ES ES344113A patent/ES344113A1/es not_active Expired
- 1967-08-14 US US660386A patent/US3492849A/en not_active Expired - Lifetime
- 1967-08-15 GB GB37504/67A patent/GB1198117A/en not_active Expired
- 1967-08-15 GB GB37503/67A patent/GB1179346A/en not_active Expired
- 1967-08-15 SE SE11456/67A patent/SE328536B/xx unknown
- 1967-08-15 GB GB37505/67A patent/GB1199963A/en not_active Expired
- 1967-08-16 SE SE11512/67A patent/SE328537B/xx unknown
- 1967-08-16 DE DER35746U patent/DE1975713U/de not_active Expired
- 1967-08-16 DE DE19671602676 patent/DE1602676A1/de active Pending
- 1967-08-18 DE DE19671602130 patent/DE1602130A1/de active Pending
- 1967-08-18 DE DER35753U patent/DE1976208U/de not_active Expired
- 1967-08-18 AT AT759867A patent/AT280018B/de not_active IP Right Cessation
- 1967-08-18 DE DER35754U patent/DE1976207U/de not_active Expired
- 1967-08-18 DE DE19671602131 patent/DE1602131A1/de active Pending
- 1967-08-18 FR FR1551913D patent/FR1551913A/fr not_active Expired
- 1967-08-21 BE BE702873D patent/BE702873A/xx unknown
- 1967-08-21 CH CH1170167A patent/CH466193A/fr unknown
- 1967-08-21 FR FR1594523D patent/FR1594523A/fr not_active Expired
- 1967-08-21 CA CA998283A patent/CA921294A/en not_active Expired
- 1967-08-21 FR FR1551915D patent/FR1551915A/fr not_active Expired
- 1967-08-22 NL NL6711546A patent/NL6711546A/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US576822A (en) * | 1897-02-09 | The morris | ||
US767314A (en) * | 1902-10-14 | 1904-08-09 | Anton Richard | Rolling-mill. |
US2358307A (en) * | 1942-08-29 | 1944-09-19 | Clarence L Dewey | Tube reducing machine |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3940963A (en) * | 1975-01-20 | 1976-03-02 | New York Wire Mills Corporation | Self-compensating die |
FR2479714A1 (fr) * | 1980-04-03 | 1981-10-09 | Bruss Polt I | Procede de fabrication de microfils, dispositif pour la mise en oeuvre dudit procede et microfils obtenus par ledit procede |
US6718809B1 (en) * | 1998-01-10 | 2004-04-13 | General Electric Company | Method for processing billets out of metals and alloys and the article |
US20040163436A1 (en) * | 1998-01-10 | 2004-08-26 | Farid Zainullaevich Utyashev | Method of metal and alloy billet treatment |
US6826940B2 (en) * | 1998-01-10 | 2004-12-07 | General Electric Company | Method of metal and alloy billet treatment |
US20040112112A1 (en) * | 2001-04-04 | 2004-06-17 | Glukhov Dmitry Evgenievich | Method for producing blanks having fine-grain structure |
CN112916620A (zh) * | 2021-01-14 | 2021-06-08 | 王克宇 | 一种GCr15辊套的锻造工艺 |
CN112916620B (zh) * | 2021-01-14 | 2022-08-09 | 山东莱锻机械股份有限公司 | 一种GCr15辊套的锻造工艺 |
Also Published As
Publication number | Publication date |
---|---|
GB1179346A (en) | 1970-01-28 |
US3514985A (en) | 1970-06-02 |
FR1551915A (nl) | 1969-01-03 |
BE702873A (nl) | 1968-02-21 |
DE1976208U (de) | 1968-01-04 |
DE1602131A1 (de) | 1970-04-09 |
ES344113A1 (es) | 1968-09-16 |
DE1976207U (de) | 1968-01-04 |
AT280018B (de) | 1970-03-25 |
CH466193A (fr) | 1968-12-15 |
US3533260A (en) | 1970-10-13 |
SE328539B (nl) | 1970-09-21 |
DE1602130A1 (de) | 1970-04-09 |
SE328536B (nl) | 1970-09-21 |
GB1198117A (en) | 1970-07-08 |
DE1975713U (de) | 1967-12-28 |
FR1594523A (nl) | 1970-06-08 |
SE328537B (nl) | 1970-09-21 |
GB1199963A (en) | 1970-07-22 |
CA921294A (en) | 1973-02-20 |
FR1551913A (nl) | 1969-01-03 |
NL6711546A (nl) | 1968-02-23 |
DE1602676A1 (de) | 1970-11-12 |
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