Method for producing profiles with at least two arms comprises forming groove in profile, into which other profile is inserted, pressure then being exerted around groove so that material flows up inserted profile to form joint

摘要

The method for producing profiles with at least two arms (2, 5, 14) comprises forming a groove in one or more profiles (2, 14), into which the other profile is inserted. Pressure is then exerted on the zone around the groove so that the yield point is exceeded and material flows up the inserted profile to form a joint.