Method of affixing tubes to headers in a heat exchanger and...

B - Operations – Transporting – 21 – D

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26/145, 153/18,

B21D 39/00 (2006.01) B21D 39/06 (2006.01) B21D 53/00 (2006.01) B21D 53/08 (2006.01) B21K 29/00 (2006.01) B23K 1/00 (2006.01) B23K 31/02 (2006.01) B23P 15/26 (2006.01) F16B 11/00 (2006.01) F28F 9/16 (2006.01) F28F 9/18 (2006.01)

Patent

CA 1262125

Abstract A new and improved automotive heat exchanger and a method of assembling tubes in a header of a heat exchanger comprising, shaping the ends of non-circular cross section tubes into a substantially circular cross section, forming collared openings of substantially circular cross section in a header wall, inserting the tube ends into the openings, and bonding the tubes to the header wall.

461285

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