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METHOD FOR MANUFACTURING A DOOR FRAME, WELDING ARRANGEMENT AND STRUCTURE OF A DOOR FRAME

  • US 20120102857A1
  • Filed: 05/04/2010
  • Published: 05/03/2012
  • Est. Priority Date: 05/04/2009
  • Status: Active Grant
First Claim
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1. Door frame (21) manufacturing method, according to which method a hole (15) is made for a door in a tubular shell (11), such as a windmill tower (10), and said door frame (21) is placed in said hole and welded on the shell, characterised in thatthe shape of said door frame (21) for said tubular shell (11) and the shape of the surface of said tubular shell at said opening (15) to be made in the shell are measured with a measuring sensor (40), anda cutting device (41) is controlled, based on the measurements, so that an opening (15) corresponding to the shape of said door frame (21) is cut in the shell (11) with said cutting device, such as a cutting torch.

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