GB933087A - Apparatus and method of forming an internal rib in the bore of a tube - Google Patents

Apparatus and method of forming an internal rib in the bore of a tube

Info

Publication number
GB933087A
GB933087A GB1987/62A GB198762A GB933087A GB 933087 A GB933087 A GB 933087A GB 1987/62 A GB1987/62 A GB 1987/62A GB 198762 A GB198762 A GB 198762A GB 933087 A GB933087 A GB 933087A
Authority
GB
United Kingdom
Prior art keywords
tube
tool
toolbar
bore
tubes
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
Application number
GB1987/62A
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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.)
Filing date
Publication date
Application filed by Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of GB933087A publication Critical patent/GB933087A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D43/00—Broaching tools
    • B23D43/005—Broaching tools for cutting helical grooves
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/28—Grooving workpieces
    • B23C3/32—Milling helical grooves, e.g. in making twist-drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/22—Machines specially designed for operating on pipes or tubes
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49384—Internally finned
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49385—Made from unitary workpiece, i.e., no assembly
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49387—Boiler making
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/50—Planing
    • Y10T409/50082—Process
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/50—Planing
    • Y10T409/502624—Means for cutting groove
    • Y10T409/502788—Arcuate groove
    • Y10T409/502952—For rifling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Drilling Tools (AREA)

Abstract

933,087. Making internally ribbed tubes; rifling. BABCOCK & WILCOX CO. Jan. 19, 1962 [Feb. 10, 1961], No. 1987/62. Classes 83 (2) and 83 (3). A method of internally ribbing a tube comprising smoothing the bore of said tube and draw boring a uniform helical groove in the internal surface of the wall of the tube. A helical groove 21 is formed in a smooth bored tube 20 of carbon or alloy steel by a spiral, three fluted tipped tool 50 fitted to a tool-bar 43 and drawn through the rotating tube in a machine 30. The tool shank 51 is a few thousandths smaller than the bore of the tube and acts as a pilot diameter. The machine 30 comprises a tube holder means 32 having a rotatable hollow spindle 34 incorporating a chuck assembly 38, tube rests 40 on a support 39, a carriage 41 gear driven by a lead screw 42a to which is coupled one end of the toolbar 43, a plurality of movable toolbar supports 44, associated drive motors 35, 60, mounted on a frame 31. A clutch 68 engages the driving relationship of the spindle 34 and leadscrew 42a and a rapid carriage return means 71 is driven by a rotor 72 through a clutch 75. The tool 50 is fitted to the toolbar 43 which passes through and protrudes from the end of the tube remote from the carriage 41. Cutting lubricant is pumped through the toolbar 43 and the passageways 59 of the tool to flush out the chips through the machined back end of the tube. A second machining pass may be carried out using a tool similar to the tool 50 but having a dummy lead section to align the tool with the existing groove. In a modification, tubes having a diameter of less than 1.0 inch are bored out as above from oversize tubes and the finish machined tube is finally subjected to external radially applied compressive forces to reduce its internal and external diameters without changing the wall thickness, with a corresponding increase in its length and elongation of the grooves 211 and ribs 22<SP>1</SP>. Specification 890,779 is referred to.
GB1987/62A 1961-02-10 1962-01-19 Apparatus and method of forming an internal rib in the bore of a tube Expired GB933087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88339A US3213525A (en) 1961-02-10 1961-02-10 Method of forming an internal rib in the bore of a tube

Publications (1)

Publication Number Publication Date
GB933087A true GB933087A (en) 1963-08-08

Family

ID=22210783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1987/62A Expired GB933087A (en) 1961-02-10 1962-01-19 Apparatus and method of forming an internal rib in the bore of a tube

Country Status (2)

Country Link
US (1) US3213525A (en)
GB (1) GB933087A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481394A (en) * 1967-06-26 1969-12-02 Calumet & Hecla Corp Configuration of heat transfer tubing for vapor condensation on its outer surface
US3779312A (en) * 1972-03-07 1973-12-18 Universal Oil Prod Co Internally ridged heat transfer tube
US4248559A (en) * 1979-03-23 1981-02-03 Union Carbide Corporation Controlled depth scoring system
DE3307458C2 (en) * 1983-03-03 1985-03-07 Tbt Tiefbohrtechnik Gmbh Und Co Kg, 7433 Dettingen Boring tool
AT395835B (en) * 1990-03-29 1993-03-25 Weingartner Maschbau Gmbh METHOD FOR PRODUCING A PARALLEL-AXIS ROTARY PISTON MACHINE
US6817098B2 (en) * 2003-01-09 2004-11-16 Chin-Chen Yuan Method for forming inner flanges in a bushing which is used to secure a hose therein
US7021106B2 (en) * 2004-04-15 2006-04-04 Mitsui Babcock (Us) Llc Apparatus and method for forming internally ribbed or rifled tubes
US20060196658A1 (en) * 2005-03-03 2006-09-07 Gary Belcher Tubular slug reducer
ATE485128T1 (en) * 2007-04-18 2010-11-15 Nat Oilwell Varco Lp LONG REACH SPINDLE DRIVE SYSTEMS AND METHODS
US8350176B2 (en) * 2008-06-06 2013-01-08 Babcock & Wilcox Power Generation Group, Inc. Method of forming, inserting and permanently bonding ribs in boiler tubes
ITTO20080717A1 (en) * 2008-09-30 2010-04-01 S I B Soc It Brocce Side Ral S R L PERFECT BROCCIA
CN107824851B (en) * 2017-08-23 2020-01-03 大连大学 Milling cutter system
CN110238463A (en) * 2019-06-27 2019-09-17 马单智 A kind of self-advancing type siphunculus inner wall boring silk device
CN110715173B (en) * 2019-09-29 2021-05-07 西安交通大学 Quick precooling transmission pipeline structure of low-temperature propellant
RU2760768C2 (en) * 2019-11-22 2021-11-30 Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) Method for cutting screw grooves on inner surface of cylindrical shell and device for its implementation
CN110976988A (en) * 2019-11-22 2020-04-10 舟山市金塘山舟机械厂 Numerical control slot milling machine for milling slot in inner hole of machine barrel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2104319A (en) * 1934-02-10 1938-01-04 Remington Arms Co Inc Manufacture of rifled tubes
US2337490A (en) * 1940-04-15 1943-12-21 Calumet And Hecla Cons Copper Method of manufacturing integral finned tubing
US2367226A (en) * 1940-05-10 1945-01-16 Foster Wheeler Corp Apparatus for producing extended surface tubular members
US2330863A (en) * 1941-07-21 1943-10-05 Lapointe Machine Tool Co Method of rifling gun barrels
US2331477A (en) * 1942-09-18 1943-10-12 Alexander W Keema Method of producing guns
US2463997A (en) * 1944-06-19 1949-03-08 Calumet And Hecla Cons Copper Method of making integral external and internal finned tubing
US2441143A (en) * 1946-02-28 1948-05-11 James H Gracey Broach
US2779222A (en) * 1954-01-05 1957-01-29 Ray C Edwards Apparatus for making heat exchange tubes
US2872720A (en) * 1957-05-06 1959-02-10 Olin Mathieson Rifling device

Also Published As

Publication number Publication date
US3213525A (en) 1965-10-26

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