Modh múnlaithe nádúrtha: Tugtar an modh foirmithe sorcóir (CFE) ar an modh múnlaithe nádúrtha freisin. Is iad na saintréithe atá ag an modh múnlaithe seo ná go bhfuil an grúpa rolla cumraithe ar feadh an imeall nascáil ingearach sa phróiseas foirmithe chun an síneadh imeall a rialú. Ag an am céanna, cuirtear srian ar na grúpaí rolla ón taobh amuigh.
Extend the edge as a compressed deformation form to absorb, so that the forming process of the tanded steel is close to the forming method of natural bending shape. Therefore, it is a forming method that can prevent the edge extension and absorb marginal extension, which is suitable for the inhabitant medium -caliber thin wall tube (D>400mm).
