US1086789A - Method of rolling flanged shapes. - Google Patents

Description

E. B. SLICK.

METHOD OF ROLLING FLANGED SHAPES.

APPLICATION FILED SEPT. 28, 190B.

Patented Feb. 10, 191i 3 SHEETS-SHEET 1.

E. E. SLICK. METHOD OF ROLLING FLANGED SHAPES.

APPLIOATION FILED SEPT. 28, 1908.

a SHEETS-SHEET 2.

WITNESSES INVENTOR Patenfaed Feb. 10, 1914.

E. E. SLICK.

METHOD OF ROLLING FLANGBD SHAPES.

APPLICATION FILED SEPT. 28, 1908.

3 SHEETS-SHEET a.

WITNESSES INVENTOR EDWIN E. sLlcK, OF PITTSBURGH, PEiNNSYLVANIA.

METHOD OF ROLLING FLANGED SHAPES.

Specification of Letters Patent.

Application filed September 28, 1908. Serial Int 455,051.

To all whom itmay concern Be it known that I, EDWIN E. SLICK, of Pittsburgh, Allegheny county, Pennsylvania,' have invented a new and useful Method of Rolling Flanged Shapes, of

vwhich the following is'a full, clear, and

exact description, reference being bad to the accompanying drawings, forming part 01: this. specification, in which-.-

of a three-high stand of rolls showing the roughing roll passes; Fig. :2 is a similar view of the second stand of rolls showing the succeeding passes, in which the blanks are further reduced; Fig. 3 is a longitudinal side elevation of a set of two-high rolls showing in duplicate the finaLpass arranged for finishing the shapes in the operation of rolling tie-plates; Fig. 4 is a view similar to that-of Fig. 2 showing thereducing passes as arranged in rolling theshape shown by Fig. 5; Fig. 5 isa view similar to that shewn by Fig. 3 showin the finishing pass in duplicate as arranged to finish a modified shape; and Figs. 6 and 7 are detail sectional end views showing a modified shape before and after being passed through thefinal finishing operation of my improved method.

My invention relates to the rolling of flanged shapes, and is designed to produce shapes having wide flanges without the use of universal mills having horizontal and vertical rolls.

In the drawings, Fig. 1 shows a threehigh rolling mill having rolls 2, 3 and i and containing five passes. The rolling opera tion is started with a bloom or billet, which in passing through the first pass a, is provided with the rudimentary flange portions 5, 6, 7 and 8. The, metal is then returned through the pass 6, in which the flange por tions 5, 6, 7 and 8 and connecting web portion 9 are elongated and further reduced in area. The metal is then successively passed through the passes a, (Z and e. In these passes, the blank is elongated and the crosssectional area of the various parts is .reduced, and it will be notedthat in the first pass the flange portions 6 and 8 are In live grooves, and the flange portions 5 and 7 1n dead grooves, while in thenext pass Z) the flange portions 5 and 7 are in live grooves with the flange portions 6 and 8 in dead grooves. The flange portions 5, 7 and portions 6, 8 located on opposite sides of the Patented Feb. 10,1914.-

two edges of the connecting web portion are alternately in live grooves and dead grooves during the rolling operation, both in the passes in this and the succeeding sets of rolls. The blank on leaving the pass 6 is then rolled and further reduced in the pass f located in the stand of rolls formed by the rolls 10, 11 and 12, as shown in Fig. 2. In

this pass the blank is further reduced. The .Figure 1 is a longitudinal side elevation,

which all of the flange portionsare further reduced and elongated. The blank is then I passed through the pass It, in which the width of the web portion of the blank be tween the flanges is increased and the web portion of the blank is bent so as to bring the inner faces of the flange portions 5 and 7 on the upper side of the blank into substantially parallel vertical planes, the web adjacent to the flange portion being bent to form an acuteanglc with the inner faces of the flanges 5 and 7. The blank is next passed through the pass j formed by the finishing rolls 13 and 14:, as shown in Fig. 3. In this pass the upwardly projected flange portions are bent so as to bring their ends inwardly and downwardly toward each other and toward the web of the shape preferably into curved form so as to form the lugs on the tie-plate being made by this rolling operation. The web portion of the blank is also straightenedby this operation, and the downwardly extending flange portions 6 and 8 are forced outwardly so as to extend in substantially the same plane as the web portion 9 of the blank. A duplicate pass j is provided in the rolls 13 and 14,'the purpose of this pass being to increase the life of the rolls and reduce the number of roll changes necessary in rolling such shapes. In rolling the modified shape as shown by Figs. 4: and 5, the reducing operation is first carried out in the same manner as is shown 'in ,Fig. 1. The blank after being reduced in the pass 0 of Fig. l, is thenvfurther re- 1 is then further'reduced in the pass f formed by the rolls 15 and 16 of Fig. 4,

and is successively passed through the later passes g and h. In these passes the blank is further reduced and shaped, the downwardly extending flanges 6 and 8 being bent shown in shaped in oneor the other: of the passes 7a or k, formed, in the rolls 18' and 19 as Fig. 5. In this last pass, the".

flanges 6 and 8 are bent outwardly. so as to extend insubstantially the same plane as the fweb portion 9 of the shape, and the flanges .5 and 7 are caused'to project substantially perpendicular to the surface of'theweb and the outwardly extending flanges 6 and 8,

.It will benoted that in the passes shown .inFig. 1 of the drawings, and the pass f or f of Figs. 2 and 4, I show a shape of substantiallyfI-beam form, that is, having flanges which extend on Opposite sides on eachedgeof the web portion of the shape. In later passes, two of the flanges ,on one 'side of the web portion are bent outwardly so as to extend substantially parallel with ing horizontal and vertical rolls.

the web portion of the blank, aslshown in the passes j and 7c, in which the inner surface of the flanges 6 and 8 are bent outwardly and upwardly so as to be -in the same plane with the lower surface of the web portion 9. In Fig. 6 a preliminary form of shape is shown' having a flange 7 projecting from one edge of the web 9, the other flange 8 being bent upwardly and the form of the shape shown in Fig. 6 is put through a later pass or passes in which the flange 8 is bent outwardly into the plane of the web 9 as is shown in Fig. 7. 1

The advantages of my invention result from the obtaining of shapes having wide flanges and projections extending on opposite sides of the flanges by means of ordinary mills other than universal mills, hav- By first rolling the shape into substantially I-beam form and by then bending some of the flanges so formed outwardly into substantially the same plane as the web portion of the blank, I am enabledto form shapes having flanges of a width and thickness which have hitherto been considered impossible to roll in the ordinary mill having fixed passes.

It will be noted that during the bending operations, the web of the blank is supported at all times, in this way preventing buckling or distortion of the web and insuring a good product;

While I have shown preferred method and setof passes for forming the I-beam section preliminary to bending'the same into the desired form,-it will be understood that the I-beam form may be rolled in any de-.

sirable way It will: also be understood that in some. cases, the intermediate shape may be of general T-form witlr flanges at'one thereby brin edge only of the web, or of other form'hat one marginal edge of an integral web por-' tion, and passing said blank through the.

passes of a rolling mill to further shape the blank, bending the web "into planes at an oblique angle to each other and the flanges on one side of said web portion each into substantially the plane of the adjoining bent portion of the web in some of said passes, reducing'the area of the. blank in at least one later pass and then straightening the bent web ofthe blank in other of the passes to the, web and flange portions on one side of the web into the same plane.

2. The method of rolling flanged shapes consisting in taking a heated blank having oppositely extending flanges on the marginal edges of an integral web portion and passing said blank through the passes of a rolling mill to further shape the blank,

bending the web into planes at an oblique angle to eachother, and the flanges on one side of the web each into substantially th'e same plane as the adjoining bent portion ofthe web, reducing the area of the blank in at. least one later pass and then straight ening the web of the blank in other of the passes to thereby bring the bent web portions and flanges on one side of the web into the same plane.

3. 'The method of rolling flanged shapes consisting in taking a heated blank having oppositely extending flanges along at least one marginal edge of an integral web portion, and passing said blank through the passes ofa rolling mill to further shape the blank, bending the web into planes at an oblique angle to each other and the flanges on one side of said web portion each into substantially the plane of the adjoiningbent portion of the web in some of said passes, then further shaping and lessening the height of theflanges on the opposite side of the web while reducing the area of the shape in at least one later pass and then straightening thebent web in other ofthe passes to thereby bring the web and the flanges on one side thereof into the same plane.

4. The method of rollingflangedshapes consisting in taking a heated blank having oppositely extending flanges on the marginal said blank through the passes orEa rolling mill to further shape the blank, bending the Web into planes at an obliqueangle to each other andf'the fl'anges on one; side of the web each into substantially the same plane asthe adjoining bentfportion of thejweb, then fur-- the! shaping and lessening the heightof the flanges on the opposite side of the web while reducing the area of the shape in at least one laterass, and then straightening the bent web n other. of thepa'sse's to therebybringtheiweb andflangesflon one side there of into the same plane;

von one side of said web portion each into substantially the plane of the adjoining bent portionrof the web'in some of said passes,

then lessening the height of the flanges; on

[the opposite side of the web while reducing the areaof the shape in 'at least one later pass, and then straightening the bent web andbending the flanges on one side of the web inwardlyinother of the passes to thereby bring the web and flanges on one side thereof into the same p'laneand bend the flanges on the opposite side of the web into" "hookiiorm;

The mcthod'of rolling flanged shapes in taking-a heated blank having oppositely extending flanges on the marginal ',.edges of an integralweb portion and passing said blank through the passes of a roll-. ingmill to further shape the blank, bend-' ing the web into planes at an oblique angle to each other and the flanges on one side of the web each into substantially the same plane as the adjoining bent portion of the web, then lessening the height of the flanges on'th e opposite side of the web while reduc-' ing the area of the shape in at least one later pass" and then straightening the bent web and bending the flanges on one side oft-he web inwardlyin other of the passes to-therey by.

ringthe web and flanges on one: side thereof into the same plane and bend the flanges on the opposite side of the web into hook form. I

7; The method of rolling flanged shapes consisting in taking a vheated blank having oppositely extending flanges along the marf ginal edges of a connecting web portion and passing the blank through the passes of a rolling mill, bending the web and the flanges 'onone side of the'web and bringing each bent flange into substantially the same plane as the adjoinin bent Web portion in some of .said passes, reducing the area of the bent shape in other of the passes, straightening the bent web and bringing the bent flanges and adjoining bent web portions into the sai'neplane in laterpasses and bendin the flanges on the opposite side of said we in- 'wardly toward each other into hook form in some of said-later passes.

8. The method of rolling flanged shapes consisting in subjecting a heated blank having oppositely extending flanges along the 'marginal' edges of a connecting web to the action of'the passes of a rolling mill bending the flanges on onelside of said web each into the plane of the web while maintaining the flanges on'the opposite side without material change intheposition thereof relative=to the web in some of said passes, then reducing the cross sectional area of the so formed blank and upsetting the flange porand bend'ing the 'upset flange portions on one side of the web inwardly to form inwardly extending oppositely facing hooks in a laterpass.

"9. The method of rolling flanged shapes consisting in subjecting a heated blank having oppositely extending flanges on the marginal edges of a connecting web portion'to the action of the passes of a rolling mill, bending the web into planes at an angle to each other and the flanges on one side of the web each into the-plane of the adjoining bent portion of the Web in some of said passes, upsetting the flanges on the opposite side of the web in at least one later pass and then straightening the bent web to bring the web and flanges on one side of the web into the same plane and bend the upset flanges on the opposite side of said web in other of the passes.

tions on one side of the web in other passes 10. The method of rolling flanged shapes consisting in subjecting a heated blank hav ing oppositely extending flanges on the marginal edges of a connecting web portion to the action of the passes of a rolling mill,

bending the web'into planes at an'angle to each other and the flanges on one side of the web each into the plane of the adjoining bent portion of the web in some of said passes, upsetting the flanges on the opposite side of the web and reducing the area of the blank in at least one later pass and then straightening the bent web to bring the web and flanges on one side of the web into the same plane and bend the upset flanges on the opposite side of said web in other of the passes.

In testimony whereof, I have hereunt set my hand.

I EDWIN nsmeK.

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