Abstract

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.

IPC Classes  ?

• B23D 61/02 - Circular saw blades
• B23D 61/04 - Circular saw blades with inserted saw teeth
• B23D 63/14 - Sharpening circular saw blades

Abstract

The invention proposes a tipped circular saw (10) that comprises a saw body (11) with a peripheral circular region made from a first material, the peripheral circular region having a plurality of fittings (12), and a plurality of tips (13) made from a second material, each tip (13) being attached to a respective fitting (12) forming a saw tooth (14) defined between a front throat (15) and a rear throat (16), each saw tooth (14) having a cutting edge (141). According to the invention, each saw tooth (14) has a leading face (142) defined between the front throat (15) and the cutting edge (141), the leading face (142) having a profile that includes a single curved surface formed by a radius R, the curved surface encompassing the first material and the second material. The invention further proposes a method for manufacturing a tipped circular saw (10) comprising a step of forming a saw body (11) with a peripheral circular region made from a first material, the peripheral circular region having a plurality of fittings (12); a step of attaching a plurality of pre-fabricated tips (13a), made from a second material, to the respective fittings (12) of the peripheral region of the saw body (11), obtaining a preliminary tipped circular saw (10a); and a step of sharpening the preliminary saw (10a) so as to form a plurality of saw teeth (14), each saw tooth (14) defined between a front throat (15) and a rear throat (16), and having a cutting edge (141) and a leading face (142) defined between the front throat (15) and cutting edge (141), the leading face (142) having a profile that includes a single curved surface formed by a radius R, the curved surface encompassing the first material and the second material.

IPC Classes  ?

• B23D 61/02 - Circular saw blades
• B23D 45/00 - Sawing machines or sawing devices with circular saw blades or with friction saw discs
• B23D 47/00 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
• B23D 63/14 - Sharpening circular saw blades
• B23D 65/02 - Making saw teeth by punching, cutting, or planing