B23K 13 - Welding by high-frequency current heating

Patents for B23K 13 - Welding by high-frequency current heating (1,807)
03/1977
03/15/1977	US4012616 Method for metal bonding
12/1976
12/21/1976	US3999029 Fin to tube welding by high frequency current source
10/1976
10/26/1976	USRE29016 Welding and forming method
10/26/1976	US3988185 Method of induction heat sealing an asymmetrical-shaped closure to a tubular body
08/1976
08/03/1976	US3972432 Method for rotationally positioning a welded steel pipe in response to a seam section thereof and an apparatus for positioning the same
03/1976
03/16/1976	US3944775 Welding process
02/1976
02/10/1976	US3937914 Method and apparatus for manufacturing welded metal tubes of finite length