Methods and designs for forming joints between metallic members

摘要

Disclosed are methods and structures for joining metallic members. A welding material can be used between two metallic members that comprise different metals. The different metals can normally form brittle intermetallic compounds when welded to one another, and the welding material can inhibit the formation of the brittle intermetallic compounds.

主权项

1. A method of manufacturing a medical device, the method comprising:
providing a first elongate metallic member comprising stainless steel and having a first welding surface; providing a second elongate metallic member comprising nickel-titanium alloy and having a second welding surface; applying a welding material to at least one of the welding surfaces; disposing the first welding surface proximate the second welding surface; and welding the welding surfaces and the welding material, forming a joint between the metallic members; wherein the welding material comprises a metal carbide in which the metal has an affinity for carbon that is weaker than that of titanium for carbon or a metal nitride in which the metal has an affinity for nitrogen that is weaker than that of titanium for nitrogen.