GB1408379A - Method and defice for shot peening the external surfaces of tubes - Google Patents

Method and defice for shot peening the external surfaces of tubes

Info

Publication number
GB1408379A
GB1408379A GB2247274A GB2247274A GB1408379A GB 1408379 A GB1408379 A GB 1408379A GB 2247274 A GB2247274 A GB 2247274A GB 2247274 A GB2247274 A GB 2247274A GB 1408379 A GB1408379 A GB 1408379A
Authority
GB
United Kingdom
Prior art keywords
tube
shot peening
sledge
nozzle set
nozzles
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
GB2247274A
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.)
Vodafone GmbH
Sandvik AB
Original Assignee
Mannesmannroehren Werke AG
Sandvik AB
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 Mannesmannroehren Werke AG, Sandvik AB filed Critical Mannesmannroehren Werke AG
Publication of GB1408379A publication Critical patent/GB1408379A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Casting Devices For Molds (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1408379 Shot peening SANDVIK AB KRAFTWERK UNION AG and MANNESMANN ROHREN-WERKE AG 20 May 1974 [30 May 1973] 22472/74 Heading B3D A method of shot peening the external surface of a tube 10 that is partly straight 20, 22 and partly curved 21, such as a U-shaped tube for a heat exchanger, using a set 15 of shot peening nozzle 16 arranged around and directed towards the tube, comprises, for shot peening a straight portion of the tube, holding the nozzle set stationary and moving the tube in a straight path with the straight portion passing axially through the nozzle set, and, for shot peening a curved portion of the tube, holding the tube stationary and moving the nozzle set along the curved portion. In a device for carrying out the method, the tube 10 is supported by rollers 11 and gripped by an arm 12 on a sledge 13 movable along a guide 14. The nozzle set 15 has a number of shot peening nozzles 16 spaced around a central area and carried by a bracket 17 movable about a vertical axis. In use, the sledge 13 is moved along the guide 14 so that the straight portion 20 passes axially of the nozzle set which effects peening by blowing glass beads against the surface of the tube to introduce compressive stresses in the surface. When the tube reaches the position shown dotted, the sledge 13 is stopped, the arm 12 is lowered, and the bracket 17 is swung about axis 18 to shot peen the curved portion 21 of the tube. When the nozzle set reaches the position 15a, the sledge is moved to its original position so that the straight portion 22 is shot peened. The set of nozzles is adjustable along bracket 17 to the radius of curvature of the moved portion 21. The sledge device may be placed above the tube. In order to distribute the shot peening effected by the nozzles, alternate nozzles are inclined at a small angle in opposite directions from a plane containing the nozzle set.
GB2247274A 1973-05-30 1974-05-20 Method and defice for shot peening the external surfaces of tubes Expired GB1408379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7307682*A SE368423B (en) 1973-05-30 1973-05-30

Publications (1)

Publication Number Publication Date
GB1408379A true GB1408379A (en) 1975-10-01

Family

ID=20317640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2247274A Expired GB1408379A (en) 1973-05-30 1974-05-20 Method and defice for shot peening the external surfaces of tubes

Country Status (11)

Country Link
US (1) US3886774A (en)
JP (1) JPS564607B2 (en)
AT (1) AT330607B (en)
BE (1) BE815677A (en)
BR (1) BR7404361D0 (en)
CA (1) CA991389A (en)
ES (1) ES426740A1 (en)
FR (1) FR2231475B1 (en)
GB (1) GB1408379A (en)
IT (1) IT1012417B (en)
SE (1) SE368423B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117166A (en) * 1982-02-25 1983-10-05 Staar Sa System for detecting the operative face of a disc carrying data on one face only

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228671A (en) * 1979-04-02 1980-10-21 Superior Industries International, Inc. Process for making a vehicle wheel
JPS61171545U (en) * 1985-04-11 1986-10-24
US4619128A (en) * 1985-05-07 1986-10-28 Westinghouse Electric Corp. Spindle for rotopeening apparatus
US4616498A (en) * 1985-05-07 1986-10-14 Westinghouse Electric Corp. Multi-spindle rotopeening apparatus
US4616497A (en) * 1985-05-07 1986-10-14 Westinghouse Electric Corp. Rotopeening method
US4616496A (en) * 1985-05-07 1986-10-14 Westinghouse Electric Corp. Rotopeening apparatus having a flexible spindle
US4713952A (en) * 1986-02-05 1987-12-22 Westinghouse Electric Corp. Tool and method for rotopeening the peripheral tubes in a tubesheet
US5515707A (en) * 1994-07-15 1996-05-14 Precision Tube Technology, Inc. Method of increasing the fatigue life and/or reducing stress concentration cracking of coiled metal tubing
US20140373585A1 (en) * 2013-06-20 2014-12-25 Foster Wheeler North America Corp. Method of and Apparatus for Shot Peening Stainless Steel Tubing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142590A (en) * 1962-05-23 1964-07-28 Om Edwards Co Inc Method for vehicle washing
US3531964A (en) * 1967-08-31 1970-10-06 Nasa Controlled glass bead peening
US3668912A (en) * 1970-07-08 1972-06-13 Carborundum Co Shot peening apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117166A (en) * 1982-02-25 1983-10-05 Staar Sa System for detecting the operative face of a disc carrying data on one face only

Also Published As

Publication number Publication date
ES426740A1 (en) 1976-07-16
JPS5020928A (en) 1975-03-05
BE815677A (en) 1974-09-16
FR2231475A1 (en) 1974-12-27
DE2354153A1 (en) 1974-12-12
DE2354153B2 (en) 1976-12-30
ATA439574A (en) 1975-09-15
IT1012417B (en) 1977-03-10
FR2231475B1 (en) 1977-09-30
US3886774A (en) 1975-06-03
CA991389A (en) 1976-06-22
BR7404361D0 (en) 1975-01-07
SE368423B (en) 1974-07-01
JPS564607B2 (en) 1981-01-31
AT330607B (en) 1976-07-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee