Method and system for applying an isolation layer to a...

B - Operations – Transporting – 23 – K

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B23K 1/19 (2006.01) H02K 9/193 (2006.01) H02K 15/00 (2006.01)

Patent

CA 2526801

A method of forming a brazed joint between an armature bar (16) and a hydraulic header clip (18) including: assembling an end of the armature bar, hydraulic header clip and a substantially phosphorous-free braze material (50, 52); positioning the assembly of the armature bar, hydraulic header clip and the braze material in a braze chamber (60), such that the clip is seated in an induction heating coil (66); heating (88) the assembly to a first temperature within 200 degrees Fahrenheit of and below a solidus temperature of the braze material by applying electrical current to the induction heat coil; heating (90) the assembly to a second temperature above the liquidus temperature of the braze material; pooling liquid braze material on ends of the armature bar, and cooling (94) the assembly and thereby forming a braze layer on the end of the armature bar.

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