GB685481A - Improvements in or relating to the manufacture of thin-walled metal tubes - Google Patents

Improvements in or relating to the manufacture of thin-walled metal tubes

Info

Publication number
GB685481A
GB685481A GB1436450A GB1436450A GB685481A GB 685481 A GB685481 A GB 685481A GB 1436450 A GB1436450 A GB 1436450A GB 1436450 A GB1436450 A GB 1436450A GB 685481 A GB685481 A GB 685481A
Authority
GB
United Kingdom
Prior art keywords
mandrel
stock
tube
tubes
thin
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
GB1436450A
Inventor
Christopher Stanley Gardner
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.)
Teddington Controls Ltd
Original Assignee
Teddington Controls 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.)
Filing date
Publication date
Application filed by Teddington Controls Ltd filed Critical Teddington Controls Ltd
Priority to GB1436450A priority Critical patent/GB685481A/en
Publication of GB685481A publication Critical patent/GB685481A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

685,481. Making seamless tubes. TEDDINGTON CONTROLS, Ltd. June 7, 1951 [June 8, 1950], No. 14364/50. Classes 83 (ii) and 83 (iv). A method of manufacturing thin-walled metal tubes of stainless steel or other metals difficult to draw comprises boring a bar stock to the required internal diameter, filling the bore with a molten low-melting point metal or alloy which expands on solidification, utilizing the solid core as a mandrel to support the stock while reducing the latter to the required wall thickness by turning or grinding operations and subsequently melting out the core. The mandrel, which may be of type metal or similar antimonial alloy, may be centred at each end for supporting in a lathe or grinder or may be longer than the tube to provide an end portion, for engagement with a chuck. One, or both, ends of the tube stock may be provided with internal grooves or serrations into which the molten metal flows when casting the mandrel and so provides an interlock between the mandrel and the stock. Tubes having a wall thickness of a few thousandths of an inch and having successive portions of different internal or external diameters may be made by this method, e.g. a thin walled tube with thicker end portions for facilitating the connection to other members. Several tube lengths may be produced from a single piece of stock by cutting up the finished tube and mandrel and then removing the mandrel portions from the tubes.
GB1436450A 1950-06-08 1950-06-08 Improvements in or relating to the manufacture of thin-walled metal tubes Expired GB685481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1436450A GB685481A (en) 1950-06-08 1950-06-08 Improvements in or relating to the manufacture of thin-walled metal tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1436450A GB685481A (en) 1950-06-08 1950-06-08 Improvements in or relating to the manufacture of thin-walled metal tubes

Publications (1)

Publication Number Publication Date
GB685481A true GB685481A (en) 1953-01-07

Family

ID=10039867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1436450A Expired GB685481A (en) 1950-06-08 1950-06-08 Improvements in or relating to the manufacture of thin-walled metal tubes

Country Status (1)

Country Link
GB (1) GB685481A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581739A (en) * 2012-03-02 2012-07-18 浙江大学宁波理工学院 Surface polishing method and surface polishing device of thin-wall expanding pipe
CN102581740A (en) * 2012-03-02 2012-07-18 浙江大学宁波理工学院 Surface polishing method and surface polishing device of thin-wall long and narrow ceramic tube
CN103056620A (en) * 2012-12-20 2013-04-24 贵州凯星液力传动机械有限公司 Elongated pipe part processing method
CN103358090A (en) * 2013-07-25 2013-10-23 遵义市节庆机电有限责任公司 Processing technic of bar-shaped thin-wall part
CN104368792A (en) * 2013-08-09 2015-02-25 苹果公司 Methods for manufacturing thin walled enclosures and related system and apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581739A (en) * 2012-03-02 2012-07-18 浙江大学宁波理工学院 Surface polishing method and surface polishing device of thin-wall expanding pipe
CN102581740A (en) * 2012-03-02 2012-07-18 浙江大学宁波理工学院 Surface polishing method and surface polishing device of thin-wall long and narrow ceramic tube
CN102581739B (en) * 2012-03-02 2013-09-18 浙江大学宁波理工学院 Surface polishing method and surface polishing device of thin-wall expanding pipe
CN102581740B (en) * 2012-03-02 2013-10-16 浙江大学宁波理工学院 Surface polishing method and surface polishing device of thin-wall long and narrow ceramic tube
CN103056620A (en) * 2012-12-20 2013-04-24 贵州凯星液力传动机械有限公司 Elongated pipe part processing method
CN103056620B (en) * 2012-12-20 2015-04-15 贵州凯星液力传动机械有限公司 Elongated pipe part processing method
CN103358090A (en) * 2013-07-25 2013-10-23 遵义市节庆机电有限责任公司 Processing technic of bar-shaped thin-wall part
CN104368792A (en) * 2013-08-09 2015-02-25 苹果公司 Methods for manufacturing thin walled enclosures and related system and apparatus
US9610635B2 (en) 2013-08-09 2017-04-04 Apple Inc. Methods for manufacturing thin walled enclosures and related system and apparatus
CN104368792B (en) * 2013-08-09 2018-01-23 苹果公司 For manufacturing the method and related system and equipment of thin wall-type shell

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