GB998071A - Process for the resistance welding of a corrugated strip to a base strip, sheet or tube - Google Patents

Process for the resistance welding of a corrugated strip to a base strip, sheet or tube

Info

Publication number
GB998071A
GB998071A GB2564261A GB2564261A GB998071A GB 998071 A GB998071 A GB 998071A GB 2564261 A GB2564261 A GB 2564261A GB 2564261 A GB2564261 A GB 2564261A GB 998071 A GB998071 A GB 998071A
Authority
GB
United Kingdom
Prior art keywords
strip
electrode
tube
corrugated
tip
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
GB2564261A
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.)
HERWIG KRESS
Original Assignee
HERWIG KRESS
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 HERWIG KRESS filed Critical HERWIG KRESS
Priority to GB2564261A priority Critical patent/GB998071A/en
Publication of GB998071A publication Critical patent/GB998071A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

998,071. Making heat exchangers; welding by pressure. H. KRESS. July 14, 1961, No. 25642/61. Headings B3A and B3R. In resistance welding a corrugated strip to a tube, strip or sheet, an electrode having radially arranged contact tips and the wall are moved so that the tips in turn engage the bases of the corrugations and spot-weld them to the wall. A strip 2<SP>1</SP>, Fig. 1, is corrugated by toothed wheels 3, 4 and fed through a guide 10 on to a tube 1 supported on an electrode 5. A base 7 is spot-welded to the tube by tip 6<SP>1</SP> of a rotatable star electrode 6, the tube and electrode are then rotated to a position so that tip 6<SP>1</SP> clears the corrugated strip and then the tube is held stationary. The next corrugation is compressed by the tip 6<SP>2</SP>, the tube is rotated backwardly until the correct base width is obtained and the base is spotwelded. The backward rotation may be eliminated if the electrode is lifted off the corrugated strip or by positioning the electrode so that the radius thereof passing through the weld point is offset in the direction of rotation of the electrode from the axis of the tube. In a modification also employing the offset weld position the strip 2<SP>1</SP>, Fig. 4, is corrugated by a lever 17 having an axially movable pin 19. In another embodiment corrugated strips are provided on a flat wall 20, Fig. 5, a pre-corrugated strip being fed and then welded by tip 23<SP>1</SP> of electrode 23, the electrode is then moved axially out of engagement with the strip, is rotated to bring the tip 23<SP>1</SP> into position 23<SP>11</SP> and is then moved axially into engagement with the strip. On further rotation the next tip 23<SP>21</SP> presses the next loop into the welding position above a roller electrode 22. The corrugated strip may be welded to a flat strip bent around a roller electrode which may rotate about an axis parallelto or at right angles to the axis of the upper electrode wheel.
GB2564261A 1961-07-14 1961-07-14 Process for the resistance welding of a corrugated strip to a base strip, sheet or tube Expired GB998071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2564261A GB998071A (en) 1961-07-14 1961-07-14 Process for the resistance welding of a corrugated strip to a base strip, sheet or tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2564261A GB998071A (en) 1961-07-14 1961-07-14 Process for the resistance welding of a corrugated strip to a base strip, sheet or tube

Publications (1)

Publication Number Publication Date
GB998071A true GB998071A (en) 1965-07-14

Family

ID=10230991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2564261A Expired GB998071A (en) 1961-07-14 1961-07-14 Process for the resistance welding of a corrugated strip to a base strip, sheet or tube

Country Status (1)

Country Link
GB (1) GB998071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004082A1 (en) * 1983-04-14 1984-10-25 Hammarberg Lars Method and apparatus for producing spacers or blocks primarily for use in load pallet structures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004082A1 (en) * 1983-04-14 1984-10-25 Hammarberg Lars Method and apparatus for producing spacers or blocks primarily for use in load pallet structures
GB2149698A (en) * 1983-04-14 1985-06-19 Hammarberg Lars Method and apparatus for producing spacers or blocks primarily for use in load pallet structures

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