Saw blade and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11724322-B2
Application number	US-201816611429-A
Country	US
Kind code	B2
Filing date	May 16, 2018
Priority date	May 18, 2017
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A method of manufacturing a saw blade includes providing a saw blade body, forming a plurality of gullets and a first portion of a plurality of tooth bodies in the saw blade body with each gullet positioned between adjacent tooth bodies, and forming a second portion of the plurality of tooth bodies in the saw blade body separate to forming the plurality of gullets and the first portion of the plurality of tooth bodies in the saw blade body.

First claim

What is claimed is:

1. A method of manufacturing a saw blade, the method comprising:
providing a saw blade body;
forming first portions of a plurality of tooth bodies in the saw blade body and rake faces of the plurality of tooth bodies in the saw blade body such that the first portions of the plurality of tooth bodies and the rake faces of the plurality of tooth bodies define a plurality of gullets in the saw blade body, each of the rake faces located at a first end of a corresponding one of the plurality of tooth bodies, a second end of the corresponding one of the plurality of tooth bodies defining an undercut portion of each of the plurality of gullets positioned between the first portions of the plurality of tooth bodies and the saw blade body; and
forming second portions of the plurality of tooth bodies in the saw blade body separate to forming the first portions of the plurality of tooth bodies, the rake faces of the plurality of tooth bodies, and the plurality of gullets in the saw blade body.

2. The method of claim 1 , wherein the forming the first portions of the plurality of tooth bodies, the rake faces of the plurality of tooth bodies, and the plurality of gullets includes simultaneously forming
the rake faces each extending from a first end of each of the tooth bodies toward the saw blade body,
edges each defined by a second end of each of the tooth bodies, and
the undercut portions, and
wherein each of the first portions of the plurality of tooth bodies include a corresponding one of the edges of the plurality of tooth bodies.

3. The method of claim 2 , wherein the forming the second portions of the plurality of tooth bodies includes simultaneously forming
relief faces each extending from the first end of each of the tooth bodies toward the second end of the corresponding one of the tooth bodies sloping toward the saw blade body, and
cutting tip portions at the first end of each of the tooth bodies.

4. The method of claim 3 , wherein the forming the rake faces, the edges, and the undercut portions occurs during a first stamping process with a first stamping die, and wherein the forming the relief faces and the cutting tip portions occurs during a second stamping process with a second stamping die.

5. The method of claim 1 , wherein the forming the plurality of gullets and the first portions of the plurality of tooth bodies is performed before forming the second portions of the plurality of tooth bodies.

6. The method of claim 1 , wherein the forming the second portions of the plurality of tooth bodies includes forming a cutting tip of each of the tooth bodies, and wherein the forming the cutting tip of each of the tooth bodies is performed without sharpening the cutting tip of each of the tooth bodies to form a plurality of cutting teeth.

7. The method of claim 1 , wherein the forming the first portions of the plurality of tooth bodies, the rake faces of the plurality of tooth bodies, and the plurality of gullets includes simultaneously forming
the rake faces each extending from a first end of each of the tooth bodies toward the saw blade body,
edges each defined by a second end of each of the tooth bodies,
the undercut portions, and
projections adjacent the second end of each of the tooth bodies sloping away from the saw blade body, and
wherein each of the first portions of the plurality of tooth bodies include a corresponding one of the edges of the plurality of tooth bodies.

8. The method of claim 7 , further comprising forming the rake faces, the edges, the undercut portions, and the projections during a stamping process with a stamping die.

9. The method of claim 8 , wherein the forming the second portions of the plurality of tooth bodies includes shaping the plurality of tooth bodies to form a plurality of cutting teeth.

10. The method of claim 9 , wherein the shaping the plurality of tooth bodies to form the plurality of cutting teeth does not include grinding the plurality of tooth bodies to form the plurality of cutting teeth.

11. The method of claim 1 , further comprising forming an attachment portion including a tang and an aperture in the saw blade body.

12. The method of claim 1 , wherein during the forming the second portions of the plurality of tooth bodies, material is not removed from the saw blade body to form the plurality of gullets.

13. The method of claim 1 , wherein the forming the second portions of the plurality of tooth bodies in the saw blade body does not form another gullet in the saw blade body.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Smith Steven B
• Trautner Paul
• Harms Brian
• Matthews Iii John R
• Felton Shane N

Classifications

• B23D61/121

  Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet · CPC title

• B23D65/02 Primary

  Making saw teeth by punching, cutting, or planing · CPC title

• B23D61/12 Primary

  Straight saw blades; Strap saw blades · CPC title

• B23D65/00

  Making tools for sawing machines or sawing devices for use in cutting any kind of material · CPC title