Abstract
Braze Pressure Welding (B. P. W.) with high frequency induction heating has been invented as the new joining method for bonding general steel pipes for piping. The piping with B. P. W. has many merits as follows : small deformation at joint, less influence by heating around the joint, the fillets formed on the steps at the edge of joint. Especially the fillet relaxes the stress concentration, and makes the tensile strength of piping comparable to that of base metal. B. P. W. requires less skill for joining, so tensile strength of piping has less variation by welders. It has high work efficiency, and high portability without large equipments. The less potential danger of fire enables on-site B. P. W.' application even for indoor piping and repairing.
