Method for manufacturing a plastic casing, window or door

摘要

The invention relates to a method for manufacturing a plastic casing, window or door by selecting plastic profiles, arranging a mitered surface in a first and a second profile and welding the first and the second profile at the position of the mitered surfaces. A mitered surface (2Z) is arranged in the first profile (2) such that a residual portion (2R) remains on the outer side of the first profile with a thickness (d) which is smaller than or equal to the wall thickness of the associated profile. A recess (3U) is arranged on the outer side (3V) of the second profile (3) for fitting accommodation of the residual portion (2R) of the first profile.