LASER WELDED BROADHEAD

• US 20070228022A1
• Filed: 06/06/2007
• Published: 10/04/2007
• Est. Priority Date: 01/31/2001
• Status: Abandoned Application

• Current Assignee: Philip Muller
• Original Assignee: Philip Muller
• Inventors: Muller, Philip
• Application Number:
  US11/758,710
• Publication Number:
  US 20070228022A1
• Time in Patent Office: Days
• US Class Current: 219/121.630
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

A broadhead including parts inseparably connected by laser welding.

Claims

1. A method of manufacturing a broadhead, wherein the broadhead comprises a plurality of parts and at least one blade, the method comprising:

assembling a first part together with a second part to create an intersection;

directing a beam of energy from a laser unit toward the intersection to fuse the first part with the second part at a seam.

2. The method of claim 1, wherein the directing further comprises using at least one of a focus cell, a lens, or a mirror to direct the beam of energy toward the intersection.

3. The method of claim 1, wherein neither flux nor filler material is added to the seam.

4. The method of claim 1, wherein before the directing, at least one of flux and filler material is added to the seam.

5. The method of claim 1, wherein the directing comprises spot welding.

6. The method of claim 1, wherein the seam comprises overlapping spot welds.

7. The method of claim 1, wherein the broadhead has a weight balance that is not adversely affected in any substantial manner by any flux or filler material.

8. The method of claim 1, wherein the first part or the second part comprises a blade.

9. The method of claim 1, wherein the directing provides a small heat affected zone that provides a seam that does not result in deformity of the first part or the second part.

10. The method of claim 1, wherein the directing has no physical contact with the first part or the second part.

18. The method of claim 1, wherein the first part and the second part each comprise a blade and the method further comprises:

directing a beam of energy to fuse the blades to a base member at a point of intersection.

19. The method of claim 18, wherein the base member comprises a ferrule having a body and a threaded area, and the point of intersection includes a portion of the body.

11. A method of manufacturing a broadhead, wherein the broadhead comprises a plurality of parts and at least one blade, the method comprising:

assembling a first part together with a second part to create an intersection; and

directing a beam of energy from a laser unit toward the intersection to fuse the first part with the second part at a seam, wherein the directing provides a small heat affected zone that provides a seam that does not result in deformity of the first part or the second part;

wherein the broadhead has a weight balance that is not adversely affected in any substantial manner by any flux or filler material.

12. The method of claim 11, wherein neither flux nor filler material is added to the seam.

13. The method of claim 11, wherein before the directing, at least one of flux and filler material is added to the seam.

14. The method of claim 11, wherein the directing comprises spot welding.

15. The method of claim 11, wherein the scam comprises overlapping spot welds.

16. The method of claim 11, wherein the first part or the second part comprises a blade.

17. The method of claim 11, wherein the directing has no physical contact with the first part or the second part.