| 摘要 |
The invention relates to a method for producing reversible knives (W) with profiled cross section, in particular for a use in chopping machines for wood chipping, composed in cross section of a proximal support part (2) with at least one fitting means (21, 22) for fastening the knife (W) in a detachable and displacement-proof manner and on both sides on the support part (2) a distal chipping region (5) containing the cutting edges (52) , wherein a preliminary material (1) with large longitudinal extension is subjected to a surface processing (11) and a support profile (2) is formed therefrom by rolling. In order to economically optimize the property profile of reversible knives it is provided according to the invention that the distal regions (23) of the support part (2), worked in an overfilled rolling groove and having a large longitudinal extension, are removed in passage, respectively forming a bonding surface (31) axially symmetrically in the longitudinal direction, after which respectively one attachment part (4) of tool steel is attached to these processed surfaces (31) of the support part (2) by means of metallic bonding (41), and from the attachment parts (4) chipping regions (5) with respectively one blade region (51) and one cutting edge (52) are shaped by chip removal, on which edge regions (5) a thermal material treatment and subsequently a cutting to length take place to produce reversible knives (W) ready for operation. |
