US3834207A - Method and apparatus for forming an accurately dimensioned metal strip having varying thickness - Google Patents
Method and apparatus for forming an accurately dimensioned metal strip having varying thickness Download PDFInfo
- Publication number
- US3834207A US3834207A US00285015A US28501572A US3834207A US 3834207 A US3834207 A US 3834207A US 00285015 A US00285015 A US 00285015A US 28501572 A US28501572 A US 28501572A US 3834207 A US3834207 A US 3834207A
- Authority
- US
- United States
- Prior art keywords
- rolls
- roll
- work
- strip
- raised portion
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
-
- 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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/0815—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 structural sections, i.e. work of special cross-section, e.g. angle steel from flat-rolled products, e.g. by longitudinal shearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
Definitions
- the present invention is a method and apparatus for rolling a feed metal strip to a finished strip having substantial variations in thickness using a fourroll mill in which one or both strip-engaging work roll has a raised portion with each work roll being supported by a back-up roll complementarily notched as required to accomplish the simultaneous reduction and reforming of a plurality of portions of the feed strip.
- a work-roll backup roll combination is used to allow the production of thinner cross'sections than heretofore attainable by the use of a pair of contoured work rolls alone.
- Those skilled in the art will recognize the lower limit of thickness rolled as a function of the work roll diameter.
- the use of a four-roll configuration provides a means of utilizing work rolls having smaller diameters, and thusly producing thinner material meeting close dimensional requirements.
- FIG. I is a schematic view of the apparatus used in practicing this invention.
- FIG. 2 is a sectional view along line 22 of FIG. 1;
- FIG. 3 is a sectional view along line 3-3 of FIG. 1;
- FIGS. 4, 5 and 6 are sectional views of alternative strip configurations suitable for processing by the method of the present invention.
- FIG. 7 is a sectional view illustrating an alternative embodiment of the invention.
- FIG. 1 includes payout reel 11 which pays out a feed strip 12.
- the feed strip may be formed by welding longitudinally together two or more strips to provide a composite feed strip having a cross sectional configuration more closely approximating the desired shape but other techniques of forming the feed strip may be used. Alternatively, the strip may be formed by rolling, skiving, routing, swaging or partial machining.
- FIG. 2 illustrates the sectional view of a welded composite feed strip having two sections, 13 and 14 joined by weld 15. A method of producing a longitudinally composite welded strip is disclosed in Lozano et al. U.S. application Ser. No. 169,203 filed Aug. 5, 1971, which application has been assigned to the assignee of the present application.
- FIGS. 4-6 Other examples of feed strip configurations are shown in FIGS. 4-6. Since the amount of reduction and reforming of the strip is normally small, the finished or contoured shape has essentially the same appearance as the feed strip and is therefore not shown in the Figures.
- Strip 12 is passed between strip-engaging or work rolls 16 and 17.
- Work roll 16 has raised portion 18 which is accommodated by notched recess portion 22 of back-up roll 23.
- Lower work roll 17 is shown having notched recess 21 but it may, if desired, have a uniform diameter provided its spacing from the upper work roll 16 is proper.
- Back-up rolls 23 and 24 preferably have diameters substantially larger than work rolls 16 and 17 and through their size and position, serve to guide, steady and apply pressure to work rolls 16 and 17. While it is preferred that the back-up rolls are larger than the work rolls, this is not required for satisfactory operation.
- the shape and length of the work rolls and backup rolls may be varied to process strips of varying width and shape such as those illustrated in FIGS. 4-6.
- upper back-up roll 30 has a notched recess 31 to accommodate the raised portion 32 of upper work roll 33.
- Strip 12a is shown being reformed by upper work roll 33 and lower work roll 34 which roll has a raised portion 35.
- Lower back-up roll 36 has complementary recessed portion 37. It should be noted that raised portion 32 may in some applications not protrude beyond the surface of roll 33 and in such applications the back-up rolls would not need to be complementarily notched.
- one or both of the work rolls may be notched, recessed or have raised portions and similarly the back-up rolls may be notched, recessed or have raised portions to accomplish reforming of strips of particular crosssectional configurations without interference between rolls while maintaining sufficient engagement of work and back-up rolls to provide the guiding, steadying and pressure application by the back-up rolls.
- Accurate dimensioning can be obtained for all or some dimensions of the finished strip provided the raised portions 18, 32 and 35 of the work rolls and other work roll strip-engaging areas engage and control the movement of metal in the areas where such accurate dimensioning is desired.
- a feed strip shaped as shown in FIG. 2 was processed using work rolls of about 1 V2 inch diameter. Two passes were used. The dimensions (see FIG. 2) as welded, after the first pass and after the second and final pass are set forth below:
- Various driving arrangements for driving one or and accommodated raised portion spaced apart more of the rolls may be used. For example, one or one from the other; and both work rolls or one or both back-up rolls may be d. driving one or more of said rolls to cause the strip driven.
- the technique of driving both work rolls is preto move through the work rolls and be accurately ferred. 5 reduced and reformed.
- a method of producing an accurately dimensioned rately dimensioned finished strip having varying thickmetal strip which varies in thickness comprising ness comprising a. introducing a feed strip having substantially the a. a pair of work rolls mounted for rotation about same overall cross sectional configuration as that to substantially parallel axes with one such roll having of the finished strip to be formed between two work rolls mounted for rotation about substantially i. a raised portion; and parallel axis, at least one of which rolls has spacedii. two end portions on either side of the raised porapart portions of selected diameter and has an intion; termediate raised portion with a diameter greater b.
- a notched back-up roll having a notched recess to than the selected diameter; accommodate the said raised portion which backb. supporting each work roll with a back-up roll up roll is positioned to engage the end portions of which back-up rolls are positioned to engage and the raised-portion roll to provide support for the apply pressure to the spaced-apart portions of the work roll and which notched recess is shaped to acwork rolls; commodate the raised portion without engagement c. employing back-up rolls to engage said work rolls with said portion; and
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
Claims (3)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00285015A US3834207A (en) | 1972-08-30 | 1972-08-30 | Method and apparatus for forming an accurately dimensioned metal strip having varying thickness |
CA176,136A CA985072A (en) | 1972-08-30 | 1973-07-11 | Method and apparatus for forming an accurately dimensioned metal strip having varying thickness |
GB3511573A GB1433515A (en) | 1972-08-30 | 1973-07-24 | Method of and apparatus for forming an accurately dimensioned metal strip |
IT69263/73A IT991887B (en) | 1972-08-30 | 1973-07-26 | PROCEDURE AND DEVICE FOR THE FORMING OF AN ACCURATELY DIMENSIONED METAL STRIP OF VARIABLE THICKNESS |
SE7310484A SE413851B (en) | 1972-08-30 | 1973-07-30 | APPARATUS FOR MANUFACTURING AN EXACT DIMENSIONED METAL BRAKE |
BR6431/73A BR7306431D0 (en) | 1972-08-30 | 1973-08-21 | PROCESS AND APPARATUS FOR FORMING AN ACCURACY METAL STRIP WITH A VARIABLE THICKNESS |
FR7331107A FR2197662B3 (en) | 1972-08-30 | 1973-08-28 | |
JP48096271A JPS4959064A (en) | 1972-08-30 | 1973-08-29 | |
DE19732343579 DE2343579A1 (en) | 1972-08-30 | 1973-08-29 | METHOD AND DEVICE FOR FORMING A METAL STRIP WITH A LENGTH OF ITS WIDTH OF DIFFERENT THICKNESS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00285015A US3834207A (en) | 1972-08-30 | 1972-08-30 | Method and apparatus for forming an accurately dimensioned metal strip having varying thickness |
Publications (1)
Publication Number | Publication Date |
---|---|
US3834207A true US3834207A (en) | 1974-09-10 |
Family
ID=23092378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00285015A Expired - Lifetime US3834207A (en) | 1972-08-30 | 1972-08-30 | Method and apparatus for forming an accurately dimensioned metal strip having varying thickness |
Country Status (9)
Country | Link |
---|---|
US (1) | US3834207A (en) |
JP (1) | JPS4959064A (en) |
BR (1) | BR7306431D0 (en) |
CA (1) | CA985072A (en) |
DE (1) | DE2343579A1 (en) |
FR (1) | FR2197662B3 (en) |
GB (1) | GB1433515A (en) |
IT (1) | IT991887B (en) |
SE (1) | SE413851B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4770018A (en) * | 1986-03-12 | 1988-09-13 | Donn Incorporated | Method for producing cold roll-formed structures |
US5070718A (en) * | 1984-04-04 | 1991-12-10 | Imi Titanium Limited | Method and apparatus for the production of metal products |
WO2011110421A3 (en) * | 2010-03-08 | 2012-04-19 | Siemens Aktiengesellschaft | External rotor motor with a varying armature profile |
RU2501622C1 (en) * | 2012-06-05 | 2013-12-20 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Method of making constant-width spring blanks with elements of variable- and constant depth |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5187457A (en) * | 1975-01-30 | 1976-07-31 | Hiroo Tada | GUREECHINGUYOIKEIJOKONO RENZOKUSEIZOHO |
FR2403865A1 (en) * | 1977-09-27 | 1979-04-20 | Proizv Ob | Laminated turbine rotor blade - has flat blank plates of different thicknesses welded together, machined and bent to shape |
DE2813636C3 (en) * | 1978-03-30 | 1980-10-30 | Theodor Wuppermann Gmbh, 5090 Leverkusen | Process and device for the production of profiles made of metal, primarily steel profiles |
FR2462005A1 (en) * | 1979-07-18 | 1981-02-06 | Telecommunications Sa | Coaxial cable outer conductors mfr. - using two superimposed cylinders with bolts acting on upper cylinder to compensate for variation in metal strip thickness |
DE4312122A1 (en) * | 1993-04-14 | 1994-10-20 | Graf & Co Ag | Process for the production of profile wire |
DE4333500C2 (en) * | 1993-10-01 | 1996-03-14 | Daimler Benz Ag | Process for the production of a sheet with different wall thicknesses and a pair of extruded profiles |
DE10156087B4 (en) * | 2001-11-16 | 2005-06-02 | Müller Weingarten AG | Device for processing a metal strip with different thicknesses |
DE10323293B4 (en) * | 2003-05-21 | 2016-01-21 | Siegenia-Aubi Kg | A method for producing a semi-finished in cross-section approximately U-shaped metal, semi-finished and faceplate and / or drive rod for a drive rod fitting of a semifinished product |
JP6079344B2 (en) * | 2013-03-18 | 2017-02-15 | 新日鐵住金株式会社 | Apparatus and method for manufacturing a differential thickness steel sheet having a thickness difference in the sheet width direction |
JP6089831B2 (en) * | 2013-03-18 | 2017-03-08 | 新日鐵住金株式会社 | Method for producing a differential thickness steel plate having a symmetrical thickness difference in the plate width direction |
JP6102506B2 (en) * | 2013-05-22 | 2017-03-29 | 新日鐵住金株式会社 | Apparatus and method for manufacturing a differential thickness steel sheet having a thickness difference in the sheet width direction |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1900032A (en) * | 1930-10-25 | 1933-03-07 | Worthington Warren | Bar mill |
US1915084A (en) * | 1932-03-31 | 1933-06-20 | P H Murphy Co | Process of making sheets |
US1997871A (en) * | 1930-12-03 | 1935-04-16 | George C Miller | Method of forming clevises |
US2271459A (en) * | 1939-06-14 | 1942-01-27 | Mackintosh Hemphill Company | Rolling mill |
US3446048A (en) * | 1966-01-14 | 1969-05-27 | Rotary Profile Anstalt | Profiling of annular workpieces |
US3488989A (en) * | 1967-09-27 | 1970-01-13 | Anaconda American Brass Co | Method of producing dual gauge strip |
US3593556A (en) * | 1968-04-12 | 1971-07-20 | Siderurgie Fse Inst Rech | Rolling mill with prestressed housing |
US3765213A (en) * | 1970-12-17 | 1973-10-16 | British Iron Steel Research | Rolling mills |
-
1972
- 1972-08-30 US US00285015A patent/US3834207A/en not_active Expired - Lifetime
-
1973
- 1973-07-11 CA CA176,136A patent/CA985072A/en not_active Expired
- 1973-07-24 GB GB3511573A patent/GB1433515A/en not_active Expired
- 1973-07-26 IT IT69263/73A patent/IT991887B/en active
- 1973-07-30 SE SE7310484A patent/SE413851B/en unknown
- 1973-08-21 BR BR6431/73A patent/BR7306431D0/en unknown
- 1973-08-28 FR FR7331107A patent/FR2197662B3/fr not_active Expired
- 1973-08-29 DE DE19732343579 patent/DE2343579A1/en active Pending
- 1973-08-29 JP JP48096271A patent/JPS4959064A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1900032A (en) * | 1930-10-25 | 1933-03-07 | Worthington Warren | Bar mill |
US1997871A (en) * | 1930-12-03 | 1935-04-16 | George C Miller | Method of forming clevises |
US1915084A (en) * | 1932-03-31 | 1933-06-20 | P H Murphy Co | Process of making sheets |
US2271459A (en) * | 1939-06-14 | 1942-01-27 | Mackintosh Hemphill Company | Rolling mill |
US3446048A (en) * | 1966-01-14 | 1969-05-27 | Rotary Profile Anstalt | Profiling of annular workpieces |
US3488989A (en) * | 1967-09-27 | 1970-01-13 | Anaconda American Brass Co | Method of producing dual gauge strip |
US3593556A (en) * | 1968-04-12 | 1971-07-20 | Siderurgie Fse Inst Rech | Rolling mill with prestressed housing |
US3765213A (en) * | 1970-12-17 | 1973-10-16 | British Iron Steel Research | Rolling mills |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070718A (en) * | 1984-04-04 | 1991-12-10 | Imi Titanium Limited | Method and apparatus for the production of metal products |
US4770018A (en) * | 1986-03-12 | 1988-09-13 | Donn Incorporated | Method for producing cold roll-formed structures |
WO2011110421A3 (en) * | 2010-03-08 | 2012-04-19 | Siemens Aktiengesellschaft | External rotor motor with a varying armature profile |
RU2501622C1 (en) * | 2012-06-05 | 2013-12-20 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Method of making constant-width spring blanks with elements of variable- and constant depth |
Also Published As
Publication number | Publication date |
---|---|
BR7306431D0 (en) | 1974-06-27 |
CA985072A (en) | 1976-03-09 |
SE413851B (en) | 1980-06-30 |
JPS4959064A (en) | 1974-06-07 |
FR2197662B3 (en) | 1976-07-30 |
FR2197662A1 (en) | 1974-03-29 |
IT991887B (en) | 1975-08-30 |
DE2343579A1 (en) | 1974-03-07 |
GB1433515A (en) | 1976-04-28 |
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