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    • 6. 发明公开
    • TIPPED CIRCULAR SAW AND METHOD FOR MANUFACTURING TIPPED CIRCULAR SAW
    • EP4008467A1
    • 2022-06-08
    • EP20848359.4
    • 2020-07-30
    • Sul Corte Importadora de Ferramentas Ltda.
    • SPANHOLI TELES, FernandoSPANHOLI, Gustavo
    • B23D61/02B23D45/00B23D47/00B23D63/14B23D65/02
    • The invention proposes a tipped circular saw blade (10) comprising a saw body (11) with a peripheral circular region made of a first material, the peripheral circular region having a plurality of slots (12), and a plurality of tips (13) made of a second material, each tip (13) fixed to a respective slot (12) to form a saw tooth (14) defined between an anterior gullet (15) and a posterior gullet (16), each saw tooth (14) having a cutting edge (141). In accordance with the invention, each saw tooth (14) has a leading face (142) defined between the anterior gullet (15) and the cutting edge (141), the leading face (142) having a profile that includes a single curved surface formed by an R radius, the curved surface encompassing the first material and the second material. The invention further proposes a method of manufacturing a tipped circular saw blade (10), the method comprising a step of forming a saw body (11) with a peripheral circular region made of a first material, the peripheral circular region having a plurality of slots (12); a step of joining a plurality of prefabricated tips (13a), made of a second material, to the respective slots (12) of the peripheral region of the saw body (11), obtaining a preliminary tipped circular saw blade (10a); and a step of grinding the preliminary tipped circular saw blade (10a) to form a plurality of saw teeth (14), each saw tooth (14) defined between an anterior gullet (15) and a posterior gullet (16), and having a cutting edge (141) and a leading face (142) defined between the anterior gullet (15) and the cutting edge (141), the leading face (142) having a profile that includes a single curved surface formed by an R radius, the curved surface encompassing the first material and the second material.