US20040148992A1 - Rolled tube fabrication method - Google Patents

Rolled tube fabrication method Download PDF

Info

Publication number
US20040148992A1
US20040148992A1 US10/356,181 US35618103A US2004148992A1 US 20040148992 A1 US20040148992 A1 US 20040148992A1 US 35618103 A US35618103 A US 35618103A US 2004148992 A1 US2004148992 A1 US 2004148992A1
Authority
US
United States
Prior art keywords
sheet material
metal sheet
treated metal
rolled tube
hooked
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.)
Abandoned
Application number
US10/356,181
Inventor
Yih Huang
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/356,181 priority Critical patent/US20040148992A1/en
Publication of US20040148992A1 publication Critical patent/US20040148992A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
    • B21C37/101—Making of the seams

Definitions

  • the present invention relates to the fabrication of rolled tubes and, more particularly, to a simple, economic rolled tube fabrication method, which eliminates the process of welding.
  • a rolled tube is made, as shown in FIGS. 1 and 2, by rolling up a metal sheet material A into a tubular shape, and then sealing the abutted edges of the tubular metal sheet material with a welding apparatus, and then adhering the surface of the tube with a layer of covering or spray-painting/electroplating the surface of the tube with a layer of coating.
  • This rolled tube fabrication method has numerous drawbacks as follows:
  • the surface treatment can only be employed to the outer surface of the tube, and the inner surface of the tube cannot be well treated with a surface treatment.
  • the selected metal sheet material must have a certain wall thickness. If a thin metal sheet material is used, the flame of the welding apparatus used may cut through the wall of the metal sheet material during welding. Further, when a thin metal sheet material is used and rolled into a tube, the rolled tube can easily be deformed.
  • the present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a rolled tube fabrication method, which eliminates the aforesaid drawbacks. It is another object of the present invention to provide a rolled tube fabrication method, which is practical and economic for making rolled tubes for use in blind fabrication.
  • a surface-treated metal sheet material is used and cut subject to the desired size, and then the two distal side edges of the surface-treated metal sheet material are bent into a respective hooked portion, and then the two hooked portions of the surface-treated metal sheet material are respectively coated with a layer of glue and then hooked up, and then the hooked area of the surface-treated metal sheet material is roller-rammed, and thus a finished rolled tube is obtained.
  • a bonding agent is applied to gaps in the hooked area before roller ramming.
  • the roller-rammed area of the rolled tube forms a rib that enhances the structural strength of the rolled tube.
  • FIG. 1 is a cross-sectional view of a rolled tube made according to the prior art.
  • FIG. 2 is a block diagram showing a rolled tube fabrication flow according to the prior art.
  • FIG. 3 is a cross-sectional view, hooked portions of the metal sheet material hooked together according to the present invention.
  • FIG. 4 is a block diagram showing a rolled tube fabrication flow according to the present invention.
  • FIG. 5A is a cross-sectional view of a finished rolled tube made according to the present invention.
  • FIG. 5B is an enlarged view of a part of FIG. 5A.
  • a metal sheet material 10 is selected, and then a surface treatment is employed to the metal sheet material 10 .
  • the surface treatment can be any of a variety of conventional methods.
  • the two sides of the selected metal sheet material can be respectively bonded with a respective layer of covering material, spray-painted with a respective layer of coating, or electroplated.
  • the surface treated metal sheet material is then cut subject to the desired size, and then the two distal side edges of the surface treated metal sheet material are respectively turned downwards and then backwards, or upwards and then backwards, forming a respective hooked portion, and then the hooked portions are respectively coated with a layer of glue, and then the surface treated metal sheet material is rolled into the shape of a tube for enabling the two hooked portions to be hooked together.
  • a semi-finished tube is obtained (see FIG. 3).
  • the connected hooked portions of the semi-finished tube are roller-rammed into a flat structure (see FIGS. 5A and 5B).

Abstract

A rolled tube fabrication method of making a rolled tube by: cutting a surface-treated metal sheet material subject to the desired size, and then bending the two opposite lateral side edges of the surface-treated metal sheet material into a respective hooked portion, and then forcing the two hooked portions of the surface-treated metal sheet material to hook each other, and then roller-ramming the hooked area of the surface-treated metal sheet material so as to obtain a finished rolled tube.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • The present invention relates to the fabrication of rolled tubes and, more particularly, to a simple, economic rolled tube fabrication method, which eliminates the process of welding. [0002]
  • 2. Description of the Related Art [0003]
  • Conventionally, a rolled tube is made, as shown in FIGS. 1 and 2, by rolling up a metal sheet material A into a tubular shape, and then sealing the abutted edges of the tubular metal sheet material with a welding apparatus, and then adhering the surface of the tube with a layer of covering or spray-painting/electroplating the surface of the tube with a layer of coating. This rolled tube fabrication method has numerous drawbacks as follows: [0004]
  • 1. Due to complicated processing procedure, the manufacturing cost of this method is high. [0005]
  • 2. Because the abutted edges of the tubular metal sheet material are welded together, the welded area must be cleaned or polished before the covering layer bonding, spray-painting or electroplating process, and the roundness control of the tube is difficult to maintain. [0006]
  • 3. The surface treatment can only be employed to the outer surface of the tube, and the inner surface of the tube cannot be well treated with a surface treatment. [0007]
  • 4. Because a welding process is necessary, the selected metal sheet material must have a certain wall thickness. If a thin metal sheet material is used, the flame of the welding apparatus used may cut through the wall of the metal sheet material during welding. Further, when a thin metal sheet material is used and rolled into a tube, the rolled tube can easily be deformed. [0008]
    • SUMMARY OF THE INVENTION
  • The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a rolled tube fabrication method, which eliminates the aforesaid drawbacks. It is another object of the present invention to provide a rolled tube fabrication method, which is practical and economic for making rolled tubes for use in blind fabrication. According to one aspect of the present invention, a surface-treated metal sheet material is used and cut subject to the desired size, and then the two distal side edges of the surface-treated metal sheet material are bent into a respective hooked portion, and then the two hooked portions of the surface-treated metal sheet material are respectively coated with a layer of glue and then hooked up, and then the hooked area of the surface-treated metal sheet material is roller-rammed, and thus a finished rolled tube is obtained. According to another aspect of the present invention, a bonding agent is applied to gaps in the hooked area before roller ramming. According to still another aspect of the present invention, the roller-rammed area of the rolled tube forms a rib that enhances the structural strength of the rolled tube.[0009]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a cross-sectional view of a rolled tube made according to the prior art. [0010]
  • FIG. 2 is a block diagram showing a rolled tube fabrication flow according to the prior art. [0011]
  • FIG. 3 is a cross-sectional view, hooked portions of the metal sheet material hooked together according to the present invention. [0012]
  • FIG. 4 is a block diagram showing a rolled tube fabrication flow according to the present invention. [0013]
  • FIG. 5A is a cross-sectional view of a finished rolled tube made according to the present invention. [0014]
  • FIG. 5B is an enlarged view of a part of FIG. 5A.[0015]
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to FIGS. 3, 4, [0016] 5A and 5B, a metal sheet material 10 is selected, and then a surface treatment is employed to the metal sheet material 10. The surface treatment can be any of a variety of conventional methods. For example, the two sides of the selected metal sheet material can be respectively bonded with a respective layer of covering material, spray-painted with a respective layer of coating, or electroplated. The surface treated metal sheet material is then cut subject to the desired size, and then the two distal side edges of the surface treated metal sheet material are respectively turned downwards and then backwards, or upwards and then backwards, forming a respective hooked portion, and then the hooked portions are respectively coated with a layer of glue, and then the surface treated metal sheet material is rolled into the shape of a tube for enabling the two hooked portions to be hooked together. Thus, a semi-finished tube is obtained (see FIG. 3). Thereafter, the connected hooked portions of the semi-finished tube are roller-rammed into a flat structure (see FIGS. 5A and 5B).
  • While only one embodiment of the present invention has been shown and described, it will be understood that various modifications could be made thereunto without departing from the spirit and scope of the invention disclosed. [0017]

Claims (2)

What the invention claimed is:
1. A rolled tube fabrication method comprising the steps of
a) selecting a surface-treated metal sheet material and cutting the selected surface-treated metal sheet material subject to a predetermined size;
b) bending the selected surface-treated metal sheet material to form two hooked portions at two opposite lateral sides of the selected surface-treated metal sheet material;
c) forcing the hooked portions of the selected surface-treated metal sheet material to hook up each other; and
d) roller-ramming the hooked area of the hooked portions of the selected surface-treated metal sheet material.
2. The rolled tube fabrication method as claimed in claim 1, further comprising a sub-step of covering said hooked portions with a layer of glue before forcing said hooked portions to hook up each other.
US10/356,181 2003-01-30 2003-01-30 Rolled tube fabrication method Abandoned US20040148992A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/356,181 US20040148992A1 (en) 2003-01-30 2003-01-30 Rolled tube fabrication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/356,181 US20040148992A1 (en) 2003-01-30 2003-01-30 Rolled tube fabrication method

Publications (1)

Publication Number Publication Date
US20040148992A1 true US20040148992A1 (en) 2004-08-05

Family

ID=32770733

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/356,181 Abandoned US20040148992A1 (en) 2003-01-30 2003-01-30 Rolled tube fabrication method

Country Status (1)

Country Link
US (1) US20040148992A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120267138A1 (en) * 2011-04-19 2012-10-25 Hilti Aktiengesellschaft Hand-held power tool and production method
US20130251551A1 (en) * 2012-03-23 2013-09-26 Bitzer Kuehlmaschinenbau Gmbh Compressor shell with multiple diameters
US8968311B2 (en) 2012-05-01 2015-03-03 Covidien Lp Surgical instrument with stamped double-flag jaws and actuation mechanism
US20160053664A1 (en) * 2013-04-10 2016-02-25 Toyota Jidosha Kabushiki Kaisha Muffler and its corresponding manufacturing method
WO2016030425A1 (en) * 2014-08-27 2016-03-03 Mahle International Gmbh Method for the production of a tubular member, and tubular member
US20160167181A1 (en) * 2014-08-27 2016-06-16 Cheung Woh Technologies Ltd. Method and apparatus for forming a hard disk drive base plate with an extended height
CN110560523A (en) * 2019-09-20 2019-12-13 厦门绿世界温室工程技术有限公司 Production equipment of greenhouse rod piece
US11207091B2 (en) 2016-11-08 2021-12-28 Covidien Lp Surgical instrument for grasping, treating, and/or dividing tissue
US11241275B2 (en) 2018-03-21 2022-02-08 Covidien Lp Energy-based surgical instrument having multiple operational configurations
US11925406B2 (en) 2020-09-14 2024-03-12 Covidien Lp End effector assemblies for surgical instruments

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US559955A (en) * 1896-05-12 Can-making tool
US2801648A (en) * 1954-01-21 1957-08-06 Goodrich Co B F Container bonded with a polyesterurethane

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US559955A (en) * 1896-05-12 Can-making tool
US2801648A (en) * 1954-01-21 1957-08-06 Goodrich Co B F Container bonded with a polyesterurethane

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9969072B2 (en) * 2011-04-19 2018-05-15 Hilti Aktiengesellschaft Hand-held power tool and production method
US20120267138A1 (en) * 2011-04-19 2012-10-25 Hilti Aktiengesellschaft Hand-held power tool and production method
US20130251551A1 (en) * 2012-03-23 2013-09-26 Bitzer Kuehlmaschinenbau Gmbh Compressor shell with multiple diameters
US8968311B2 (en) 2012-05-01 2015-03-03 Covidien Lp Surgical instrument with stamped double-flag jaws and actuation mechanism
US11672592B2 (en) 2012-05-01 2023-06-13 Covidien Lp Electrosurgical instrument
US9375263B2 (en) 2012-05-01 2016-06-28 Covidien Lp Surgical instrument with stamped double-flange jaws and actuation mechanism
US11219482B2 (en) 2012-05-01 2022-01-11 Covidien Lp Surgical instrument with stamped double-flange jaws and actuation mechanism
US10271897B2 (en) 2012-05-01 2019-04-30 Covidien Lp Surgical instrument with stamped double-flange jaws and actuation mechanism
US9956030B2 (en) 2012-05-01 2018-05-01 Covidien Lp Electrosurgical forceps with stamped double-flange jaws and u-shaped drive actuation mechanism
US20160053664A1 (en) * 2013-04-10 2016-02-25 Toyota Jidosha Kabushiki Kaisha Muffler and its corresponding manufacturing method
US9719404B2 (en) * 2013-04-10 2017-08-01 Toyota Jidosha Kabushiki Kaisha Muffler and its corresponding manufacturing method
US20160167181A1 (en) * 2014-08-27 2016-06-16 Cheung Woh Technologies Ltd. Method and apparatus for forming a hard disk drive base plate with an extended height
US10022826B2 (en) * 2014-08-27 2018-07-17 Cheung Woh Technologies Ltd. Method and apparatus for forming a hard disk drive base plate with an extended height
US20170254443A1 (en) * 2014-08-27 2017-09-07 Mahle International Gmbh Method for the production of a tubular member, and tubular member
CN107000008A (en) * 2014-08-27 2017-08-01 马勒国际有限公司 The manufacture method and tubular element of tubular element
WO2016030425A1 (en) * 2014-08-27 2016-03-03 Mahle International Gmbh Method for the production of a tubular member, and tubular member
US11207091B2 (en) 2016-11-08 2021-12-28 Covidien Lp Surgical instrument for grasping, treating, and/or dividing tissue
US11241275B2 (en) 2018-03-21 2022-02-08 Covidien Lp Energy-based surgical instrument having multiple operational configurations
CN110560523A (en) * 2019-09-20 2019-12-13 厦门绿世界温室工程技术有限公司 Production equipment of greenhouse rod piece
US11925406B2 (en) 2020-09-14 2024-03-12 Covidien Lp End effector assemblies for surgical instruments

Similar Documents

Publication Publication Date Title
US20040148992A1 (en) Rolled tube fabrication method
US4125924A (en) Method of producing composite metal pipe
WO2002004249A3 (en) Contoured composite structural members and methods for making the same
JPS60213310A (en) Production of double-layered pipe
CA2409351C (en) Method for the production of multi-layer metal composite tubes
JPH01501853A (en) Manufacturing method of lightweight shapes
US20160207133A1 (en) Method of Manufacturing Small-Diameter Stainless Pipe
US20050013954A1 (en) Tailored tubular blanks and a method for the production thereof
EP1504844B1 (en) Method of manufacturing annular body
PT1107845E (en) PROCESS FOR MANUFACTURE OF TUBES
JPS59160569A (en) Partial melt-spraying method
KR101049632B1 (en) Metal tube manufacturing method with excellent formability
EP1640104A3 (en) Method of welding galvanized steel components
JPH05177248A (en) Preparation of long substance by performing laminating treatment of metal material with layer consisting of aluminum
JPH09234511A (en) Manufacture of metallic curled pipe and apparatus therefor
JPH02279893A (en) Rail covered with texture and manufacture thereof
US655304A (en) Metallic tubing.
US7444848B2 (en) Process for milling metal parts
JP2007518428A (en) Manufacturing method for jewelry products
EP0326085B1 (en) Production of nozzle member
ATE490865T1 (en) HOSE AND DEVICE AND METHOD FOR PRODUCING THE SAME
JP3420535B2 (en) Stub end and manufacturing method thereof
WO2006088934A3 (en) Fluorescent lamp cathode and method of making cathodes
JP2003181680A (en) Method for welding plate and welding structure
JPS6076219A (en) Composite member and its manufacture

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION