Cobalt Based Alloys
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Transcript of Cobalt Based Alloys
Resistance Welding
Lesson ObjectivesWhen you finish this lesson you will understand:•
Learning Activities1. View Slides; 2. Read Notes, 3. Listen to lecture4. Do on-line workbook
Keywords
Sullivan, CP, Et. Al. “Covalt-Base Superalloys – 1970”Centre D’Information Du Cobalt, Brussels, 1970
Sullivan, CP, Et. Al. “Covalt-Base Superalloys – 1970”Centre D’Information Du Cobalt, Brussels, 1970
Sullivan, CP, Et. Al. “Covalt-Base Superalloys – 1970”Centre D’Information Du Cobalt, Brussels, 1970
Sullivan, CP, Et. Al. “Covalt-Base Superalloys – 1970”Centre D’Information Du Cobalt, Brussels, 1970
Example: Cast MAR-M 302
MC
M23C6
M6CEutectic
Applications• First Stage Turbine Blades & Lower Temp• Sheet applications such as exhaust case & Burner liners• Medical Implants
Resistance Welding
The resistance welding manual says:Cobalt alloys can be spot, seam and flash welding with conditions similar to that of Nickel. But they also say data is limited.
RWMA concludes:current requirements will be no more than for SS, but slightly higher welding forces will be required. Welding time should also be about the same.
Manufacture of a Non-Migrating Vascular Prosthesis
McNamara, E, & Weiser, M, “Non-migrating Vascular Prosthesis and minimally invasive Placement System Therefore”, US Patent 6,004,347 Dec 21, 1999
Blood Vessel Liner and Spring Made From MP35N Wire Compressed & Inserted In Artery
Mesh & Anchor Hooks Resistance Welded Zig-Zag Wire Spring
Placement in Artery