Method and system for joining two components of a meltable material

A system for joining an inner surface a first component and an inner surface of a second component of a meltable material in face-to-face relationship, the system comprising:

• at least one energy source,
• a pair of separating guides, and
• a first pressure roller positioned to engage an outer surface of the first component opposite the inner surface of the first component,
• a second pressure roller opposite the first pressure roller forming a constriction therebetween, the second roller positioned to engage an outer surface of the second component opposite the inner surface of the second component, and
• wherein the system is configured to place the second component relative to the first component on opposed sides of the separating guides so as to form an overlap between a first border region of the first component and a second border region of the second component under a gap between the first border region and the second border region, for heating the first border region and the second border region through the at least one energy source placed in the gap at least partially, for relatively moving the at least one energy source along the first border region and the second border region in the gap, and for pressing already heated sections of the first border region and the second border region onto each other by the pressure rollers,
• wherein the inner surface of the first component is directly bonded to the inner surface of the second component within the first and second border regions,
• wherein a first separating guide of the pair of separating guides engages an inner surface of the first component within the gap without engaging the second component and a second separating guide of the pair of separating guides engages an inner surface of the second component within the gap without engaging the first component.