摘要:
The method of the invention includes forming a plate and deforming, by ultrasonic forging, a plate side located between the conical surfaces (34, 35) of strikers (2, 3) for the purpose of forming a wedge- shaped edge on the plate (1) . The strikers are rotated around their longitudinal axes (Ll, L2) . The device of the invention is provided with a drive for rotating the strikers (2, 3) . On the working surface of the striker (2, 3) a recess is made, the generatrix of which corresponds to the form of the wedge-shaped edge surface . The invention enables to shorten the time of treatment and improve the quality of the cutting edge surface.
摘要:
A composite utility blade and method of making such a blade (10) involves butt joining a high speed or tool steel wire (44) to a front edge of an alloy steel backing strip (34). The wire (44) defines a predetermined cross-sectional shape that substantially corresponds to the cross-sectional shape of the cutting edge (14) of the blade (10). The wire (44) is electron beam welded to the backing strip (34) to form a composite strip (46) defining a first metal portion (20) formed by the alloy steel backing strip (34), a second metal portion (22) formed by the high speed or tool steel wire (44), and a weld region (28) joining the first and second metal portions (20,22). The cutting edge (14) may be coated with AlTiN, TiN, or an inner coating of AITiN and an outer coating of TiN.
摘要:
A composite utility knife blade (10) and method of making such a blade involves butt joining a tool steel wire (44) to a front edge of an alloy steel backing strip (34). The wire (44) is electron beam welded to the backing strip (34) to form a composite strip (46) defining a first metal portion (20) formed by the alloy steel backing strip (34), a second metal portion (22) formed by the tool steel wire (44), and a weld region (28) joining the first and second metal portions (20, 22). The composite strip (46) is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip (46) is then hardened such that the first metal portion (20) defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion (20) defines a surface hardness within the range of approximately 60 Rc to approximately 75 Rc.
摘要:
A process for manufacturing razor blades from a continuous strip of metal stock (51) by stamping a plurality of openings (12) in the strip for precise registry of the blade edge when employed in the razor and then running the stock through a device which partially slits the strip along lines which are precisely located with respect to the edges of the stock and the openings. The strip is then heat treated after which it is run through a device (55) which splits the stock along the previously slit lines to form a plurality of continuous strands containing interconnected blades disposed end to end.
摘要:
Bei einem Verfahren zur Herstellung eines Gegenstandes aus wenigstens zwei Teilen (12, 14) liegt ein Teil (14) als Rohling (30) aus einem plastisch verformbaren Werkstoff vor. Der Rohling (30) ist mit einer Ausnehmung (32) versehen und von dem mit dem Rohling (30) zu verbindenden Teil (12) ragt ein in die Ausnehmung (32) einsetzbares Verankerungsteil (22) ab. Das Verankerungsteil (22) wird in die Ausnehmung (32) eingesetzt, der Rohling (30) in eine Form eingelegt, durch Massivumformen in die Form eingedrückt und mit dem Verankerungsteil (22) kraft- und/oder formschlüssig verbunden.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung eines Schmiedeteils (1) aus einem im Wesentlichen block- oder scheibenförmigen Schmiederohling (2), wobei der Schmiederohling im Wesentlichen aus Damaststahl besteht, wobei der Schmiederohling (2) in mindestens einem Schmiedeschritt umgeformt wird. Es wird vorgeschlagen, dass der Schmiederohling (2) in dem Schmiedeschritt in einem Schmiedeaggregat (3) mit Gesenkoberteil (4) und Gesenkunterteil (5) umgeformt wird und dass der Schmiederohling (2) bezogen auf seine ursprüngliche, senkrecht zu dem Schmiedehub (6) verlaufende Mittelebene (7) unsymmetrisch umgeformt wird.
摘要:
A dressing device (10,90) for sharpening or conditioning of a blade (18) or the like includes one or more disk pairs (36-40,108), each having a pair of disks (52,54,110,112) respectively presenting a series of circumferentially spaced, projecting teeth (64) with openings (66) therebetween. The disks (52,54,110,112) are oriented in face-to-face relationship with the teeth (64) thereof in meshed, intercalated relationship to thereby create circumferential dressing openings (76,122). The dressing surfaces (74) of the teeth (64) are of arcuate, concave configuration so as to create a desirable gothic-arch edge on a blade (18) or the like.
摘要:
A composite utility knife blade (10) and method of making such a blade involves butt joining a tool steel wire (44) to a front edge of an alloy steel backing strip (34). The wire (44) is electron beam welded to the backing strip (34) to form a composite strip (46) defining a first metal portion (20) formed by the alloy steel backing strip (34), a second metal portion (22) formed by the tool steel wire (44), and a weld region (28) joining the first and second metal portions (20, 22). The composite strip (46) is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip (46) is then hardened such that the first metal portion (20) defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion (20) defines a surface hardness within the range of approximately 60 Rc to approximately 75 Rc.
摘要:
A composite utility blade and method of making such a blade (10) involves butt joining a high speed or tool steel wire (44) to a front edge of an alloy steel backing strip (34). The wire (44) defines a predetermined cross-sectional shape that substantially corresponds to the cross-sectional shape of the cutting edge (14) of the blade (10). The wire (44) is electron beam welded to the backing strip (34) to form a composite strip (46) defining a first metal portion (20) formed by the alloy steel backing strip (34), a second metal portion (22) formed by the high speed or tool steel wire (44), and a weld region (28) joining the first and second metal portions (20,22). The cutting edge (14) may be coated with AlTiN, TiN, or an inner coating of AITiN and an outer coating of TiN.