US1763582A - Method for the manufacture of metal tubes - Google Patents

Method for the manufacture of metal tubes Download PDF

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Publication number
US1763582A
US1763582A US28924528A US1763582A US 1763582 A US1763582 A US 1763582A US 28924528 A US28924528 A US 28924528A US 1763582 A US1763582 A US 1763582A
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Patent type
Prior art keywords
method
tube
manufacture
half
sections
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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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Inventor
Edward J Gulick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C G CONN Ltd
Original Assignee
C G CONN Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021Deforming sheet bodies
    • B21D26/025Means for controlling the clamping or opening of the moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/28Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/286Making tube fittings for connecting pipes, e.g. U-pieces starting from sheet material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021Deforming sheet bodies
    • B21D26/029Closing or sealing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/003Simultaneous forming, e.g. making more than one part per stroke
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49805Shaping by direct application of fluent pressure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49893Peripheral joining of opposed mirror image parts to form a hollow body

Description

June 10, 1930.

E. J. GULICK METHOD FOR THE MANUFACTURE OF METAL TUBES 2 Sheets-Sheet 1 Filed- June 29, 1928 gmentoz June 10, 1930.. i E. J. GULICK 1,763,582

METHOD FOR THEMANUFACTURE 0F METAL TUBES Filed June 29, 1928 2 Sheets-Sheet 2 'nfoz Patented June 10, 1930 i I UNITED STATES.

PATENT OFFICE EDWARD J. G'ULIGK, OF ELKHART, INDIANA, ASSIGNOR TO 0. G. CONN, LTD., 01? ELK- HART, INDIANA, A CORPORATION OF INDIANA METHOD FOR THE MANUFACTURE OF METAL 'ID'IBES Application filed June 29,

This invention relates to the manufacture of sheet metal tubes, and especially curved or bent tubes.

The principal object of my invention is to provide a method for the manufacture of tubular sheet elbows or curved tubes by forming two half tube sections by fluid pressure and Welding the joints together.

Another object of the invention is to provide a method for the manufacture of a tapered two piece longitudinally jointed sheet metal elbow or bend by forming the two half sections thereof in a mould by fluid pressure.

Other and more specific objects of the in vention are mentioned anddescribed herein.

The preferred embodiment of my invention is illustrated in the accompanying drawings, wherein,

Figure 1 illustrates two views of a tapered sheet metal elbow made according to my improved method;

Fig. 2 illustratestwo views of a right and left hand rudimentary sheetmetal blank from which the elbow is made;

Fig. 3. illustrates three views of the condition of the two rudimentary sheets after the first mduld operation thereon;

Fig. 4 illustrates a top plan view of the right and left hand mould units;

Fig. 5 is'a side elevation of one of the mould units;

Fig. 6 is a section taken on line 6-6 of the lower mould illustrated in Fig. 4; and

Fig. 7 is a transverse section through the tube illustrated in Fig. 1.

Similar numerals of reference indicate like parts throughout the several views on the drawing.

Referring to the details of the drawings the numeral 1 indicates a tapered two piece sheet metal elbow or bend made in halves under my improved method, and numerals 2 and 3 indicate, respectively, a right and left hand rudimentary ductile sheet *metal blankfrom which each half section of the v tube is formed by hydraulic or fluid pressure. While the blanks 2 and 3 are shown as right and left hand elements it is obvious that a reversal of either blank will produce 1928. Serial No. 289,245.

the other form, except as each blank may i semi-circular in cross-section, Fig. 6. As illustrated, the recess 8 in the mould section 4 is tapered longitudinally to produce the tube half section 9 shown in Fig. 3, as here,- inafter described.

The mould unit 5 has its lower section formed with a recess 8 to correspond in dimension with that of unit 4, but of right hand formation, and the rough tube half section 10 (Fig. 3) is formed therein, as hereinafter described. Each top motion 6 of the mould units 4 and 5 has a pipe 11 connected with a conduit 12 therein for the introduction of water, or other fluid, under pressure to the recess or chamber 8 to operate upon either of the blanks 2 or 3.

Inasmuch as the method of forming both the right and left hand tube half sections is the same the description of the operation of one of the mould units will sufiice for both, it is believed. In the practical application of my improved method a curved blank 2 is placed between the top and bottom sections 6 and 7 'of the mould 4 to completely cover the recess 8. The mould is then locked together by a suitable clamp or press'not. shownto clamp the blank 2 therebetween, Thereupon, fluid pressure,

preferably hydraulic, is applied to through pipe 11 to the upper surface of said blank, causing the latter to be bulged and pressed into the recess 8 and to assume the contour thereof, as represented bythe condition of said blank in Figures 3 and 6. As indicated in Fig. 6 the blank 2 is now semi-circular in ture is to remove the end sections 15, and 16 on approximately lines A-A and B--B, respectively; and the fin 13. The right hand half section 10 of the tube is produced in the mould 5 in the same manner and its end sections 15 and 16 andfin 13 are removed, as described for the left hand section. Thereupon, the two tube half sections 14 and 14:

are welded or brazed together at their longitudinal joints 17 and 18 (Fig. 7) and the tube is then ready for plating and polishing. I claim:

1. In the method of making a tube in halves, the steps consisting of forming a pair of rudimentary blanks of fiat ductile sheet metal, then forming cooperating tube half sections of said blanks by applying fluid under pressure to said blanks, then removing the excess stock from the sides and ends of said half sections, and then welding said half sections together at their longitudinal joints.

2. In the method of making a tube in halves, the steps consisting of formin a air of rudimentary blanks of flat ducti e s eet metal, then forming right and left hand cooperating half tube sections of said blanks by applying fluid under pressure on one side thereof, then'removin the fins and end ortions of said half sectlons, and then wel in said half sections together at their longitudinal joints.

3. The method of making a tubular elbow in halves which comprises the formation of a pair of rudimentary blanks of flat ductile sheet metal, then formin right and left hand cooperating curved alt tube sections of said blanks by the a plication of fluid under pressure on one si e thereof, then removin the excess stock from the sides and ends 0 said half sections, and then welding sald half sections together at their longitudinal joints.

4. The method of 'making a tapered tubular elbow in halves which comprises the for-.

mation of a npgir of curved, tapered rudimentary bla of flat ductile sheet metal, then forming right and left hand coo erating curved half tube sections of' said b anks by the application of fluid under pressure on one s1 e thereof, then removing the excess stock from the sides and ends of said half sections and then weldin said half sections together at their longitu 'nal joints.

EDWARD J. GULICK.

US1763582A 1928-06-29 1928-06-29 Method for the manufacture of metal tubes Expired - Lifetime US1763582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1763582A US1763582A (en) 1928-06-29 1928-06-29 Method for the manufacture of metal tubes

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Application Number Priority Date Filing Date Title
US1763582A US1763582A (en) 1928-06-29 1928-06-29 Method for the manufacture of metal tubes

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761206A (en) * 1950-12-13 1956-09-04 Melville F Peters Method of and means for forming bellows
US2912951A (en) * 1950-12-13 1959-11-17 Melville F Peters Method of and means for forming bellows
US3742745A (en) * 1971-08-31 1973-07-03 Great Lakes Sports Mfg Co Metal forming method and apparatus
US20050257591A1 (en) * 2004-04-06 2005-11-24 Andreas Hauger Process of producing profiles whose cross-section is variable in the longitudinal direction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761206A (en) * 1950-12-13 1956-09-04 Melville F Peters Method of and means for forming bellows
US2912951A (en) * 1950-12-13 1959-11-17 Melville F Peters Method of and means for forming bellows
US3742745A (en) * 1971-08-31 1973-07-03 Great Lakes Sports Mfg Co Metal forming method and apparatus
US20050257591A1 (en) * 2004-04-06 2005-11-24 Andreas Hauger Process of producing profiles whose cross-section is variable in the longitudinal direction
US20080028819A1 (en) * 2004-04-06 2008-02-07 Andreas Hauger Process of producing profiles whose cross-section is variable in the longitudinal direction
US7418849B2 (en) * 2004-04-06 2008-09-02 Muhr Und Bender Kg Process of producing profiles whose cross-section is variable in the longitudinal direction
US9040134B2 (en) 2004-04-06 2015-05-26 Muhr Und Bender Kg Process of producing profiles whose cross-section is variable in the longitudinal direction

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