Stone Saw Blade

• US 20090126712A1
• Filed: 11/13/2008
• Published: 05/21/2009
• Est. Priority Date: 11/15/2007
• Status: Abandoned Application

• Current Assignee: Wikus-Saegenfabrik Wilhelm H. Kullmann GmbH & Co. Kg
• Original Assignee: Wikus-Saegenfabrik Wilhelm H. Kullmann GmbH & Co. Kg
• Inventors: Kwanka, Werner, Kullmann, Jorg H.
• Application Number:
  US12/269,983
• Publication Number:
  US 20090126712A1
• Time in Patent Office: Days
• US Class Current: 125/21
• CPC Class Codes: B23D 61/121 Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
• CPC Class Codes: B23D 61/14 with inserted saw teeth , i.e. the teeth being individually inserted
• CPC Class Codes: B28D 1/127 Straight, i.e. flat, saw blades; strap saw blades

Abstract

A stone saw blade (1) includes an elongated base body (2) and a plurality of teeth (3). The teeth (3) are designed and arranged to be unset and to include geometrically defined cutting portions (11). The teeth (3) include a form body (4) being connected to the base body (2). The form body (4) includes a carrier (21) being made of hard metal and a layer (5) forming the cutting portion (11). The layer (5) has a hardness of at least 5,000 HK.

Claims

1. A stone saw blade, comprising:

an elongated base body; and

a plurality of teeth,

said teeth being designed and arranged to be unset and to include geometrically defined cutting portions,

said teeth including a form body, said form body being connected to said base body,

said form body including a carrier being made of hard metal and a layer forming said cutting portion, said layer having a hardness of at least 5,000 HK.

2. The stone saw blade of claim 1, wherein said layer is made of at least one of the materials selected from the group consisting of PCD and CBN.

3. The stone saw blade of claim 1, wherein said layer forms a face of said form body.

4. The stone saw blade of claim 2, wherein said layer forms a face of said form body.

5. The stone saw blade of claim 3, wherein at least a part of said face of said layer includes a round cutting edge.

6. The stone saw blade of claim 4, wherein at least a part of said face of said layer includes a round cutting edge.

7. The stone saw blade of claim 5, wherein said round cutting edge has a circular shape.

8. The stone saw blade of claim 6, wherein said round cutting edge has a circular shape.

9. The stone saw blade of claim 1, wherein said elongated base body includes a plurality of seats being produced by milling, said form body being designed and arranged to positively engage one of said seats.

10. The stone saw blade of claim 1, wherein said teeth are arranged on said base body in groups of teeth, said teeth having different heights and widths.

11. The stone saw blade of claim 1, wherein said teeth have a negative rake angle.

12. The stone saw blade of claim 11, wherein said rake angle is approximately between −

5° and

0°

.

13. The stone saw blade of claim 1, wherein said teeth are designed and arranged to have a clearance angle of approximately between 0°

and 15°

.

14. The stone saw blade of claim 1, wherein said teeth have a positive rake angle and include a negative protecting bevel having an angle of approximately between 0°

and −

25°

.

15. The stone saw blade of claim 3, wherein said face includes a coating being made of hard material.

16. The stone saw blade of claim 15, wherein said hard material is selected from the group consisting of aluminum titanium nitride, titanium aluminum carbon nitride and chrome nitride.