Band saw blade with repeating back edge pattern and related method
View Patent ↗A band saw blade may include a cutting edge defining a cutting plane and configured to engage a workpiece during movement of the band saw blade in a cutting direction, and a back edge located on an opposite side of the band saw blade relative to the cutting edge and defining a repeating back edge pattern. The back edge pattern may include, in sequential order, a ramp-down section defining an acute ramp-down angle relative to a plane parallel to the cutting plane, a first ramp-up section defining a first acute ramp-up angle relative to the plane parallel to the cutting plane, an intermediate section oriented at least substantially parallel to the cutting plane, a second ramp-up section defining a second acute ramp-up angle relative to the plane parallel to the cutting plane, and a spacing section oriented at least substantially parallel to the cutting plane.
1. A band saw blade comprising:
a cutting edge defining a cutting plane and configured to engage a workpiece during movement of the band saw blade in a cutting direction;
a back edge located on an opposite side of the band saw blade relative to the cutting edge and defining a back edge pattern, the back edge pattern comprising, in sequential order in a direction opposite to the cutting direction:
a ramp-down section having a ramp-down length and defining an acute ramp-down angle relative to a plane parallel to the cutting plane;
a first ramp-up section having a first ramp-up length and defining a first acute ramp-up angle relative to the plane parallel to the cutting plane;
an intermediate section having an intermediate length and oriented at least substantially parallel to the cutting plane, wherein the intermediate section is spaced a first distance from the cutting edge;
a second ramp-up section having a second ramp-up length and defining a second acute ramp-up angle relative to the plane parallel to the cutting plane; and
a spacing section having a spacing length and oriented at least substantially parallel to the cutting plane, wherein the spacing section is spaced a second distance from the cutting edge that is greater than the first distance.
2. The band saw blade of claim 1 , wherein a sum of the first ramp-up length, the intermediate length, and the second ramp-up length is greater than each of the ramp-down length and the spacing length.
3. The band saw blade of claim 1 , wherein the spacing length is greater than the ramp-down length.
4. The band saw blade of claim 1 , wherein the first ramp-up length is equal to or substantially equal to the second ramp-up length.
5. The band saw blade of claim 1 , wherein the ramp-down length is equal to or substantially equal to the intermediate length.
6. The band saw blade of claim 1 , wherein the acute ramp-down angle is greater than each of the first acute ramp-up angle and the second acute ramp-up angle.
7. The band saw blade of claim 1 , wherein the first acute ramp-up angle is equal to or substantially equal to the second acute ramp-up angle.
8. The band saw blade of claim 1 , wherein the ramp-down section extends from a leading end of the back edge pattern to a second leading end of the first ramp-up section, wherein the first ramp-up section extends from a trailing end of the ramp-down section to a third leading end of the intermediate section, wherein the intermediate section extends from a second trailing end of the first ramp-up section to a fourth leading end of the second ramp-up section, wherein the second ramp-up section extends from a third trailing end of the intermediate section to a fourth leading end of the spacing section, and wherein the spacing section extends from a fourth trailing end of the second ramp-up section to a fifth trailing end of the back edge pattern.
9. The band saw blade of claim 1 , wherein the band saw blade has a first height at a leading end of the ramp-down section, wherein the band saw blade has a second height at a trailing end of the ramp-down section and a second leading end of the first ramp-up section, wherein the band saw blade has a third height at a second trailing end of the first ramp-up section, along the intermediate section, and at a third leading end of the second ramp-up section, wherein the band saw blade has a fourth height at a third trailing end of the second ramp-up section and along the spacing section, wherein the first height is equal to or substantially equal to the fourth height, wherein the first height is greater than each of the second height and the third height, and wherein the third height is greater than the second height.
10. A band saw blade comprising:
a cutting edge defining a cutting plane and configured to engage a workpiece during movement of the band saw blade in a cutting direction;
a back edge located on an opposite side of the band saw blade relative to the cutting edge and defining a repeating back edge pattern, the back edge pattern comprising, in sequential order in a direction opposite to the cutting direction:
a ramp-down section having a ramp-down length and defining an acute ramp-down angle relative to a plane parallel to the cutting plane;
a ramp-up section having a ramp-up length and defining an acute ramp-up angle relative to the plane parallel to the cutting plane the ramp-up section comprising:
a first ramp-up subsection having a leading end, a trailing end, and a first ramp-up length comprising a first portion of the ramp-up length and defining a first acute ramp-up angle relative to the plane parallel to the cutting plane;
a second ramp-up subsection having a leading end, a trailing end, and a second ramp-up length comprising a second portion of the ramp-up length and defining a second acute ramp-up angle relative to the plane parallel to the cutting plane; and
an intermediate subsection extending between the trailing end of the first ramp-up subsection and the leading end of the second ramp-up subsection and having an intermediate length comprising a third portion of the ramp-up length; and
a spacing section having a spacing length and oriented parallel to the cutting plane;
wherein the ramp-up section is positioned adjacent to the ramp-down section;
wherein the spacing section is positioned adjacent to the ramp-up section; and
wherein the ramp-up length and the spacing length each are greater than the ramp-down length.
11. The band saw blade of claim 10 , wherein the intermediate subsection is oriented at least substantially parallel to the cutting plane.
12. The band saw blade of claim 10 , wherein the ramp-down length is equal to or substantially equal to the intermediate length.
13. The band saw blade of claim 10 , wherein the first ramp-up length is equal to or substantially equal to the second ramp-up length, and wherein the first acute ramp-up angle is equal to or substantially equal to the second acute ramp-up angle.
14. The band saw blade of claim 10 , wherein a total circumferential length of the band saw blade is equal to or greater than approximately 10 feet and less than approximately 14 feet, and wherein the spacing length is equal to or greater than approximately one-third of the ramp-up length and less than approximately one and one-half times the ramp-up length.
15. The band saw blade of claim 10 , wherein a total circumferential length of the band saw blade is equal to or greater than approximately 14 feet, and wherein the spacing length is greater than the ramp-down length.
16. A band saw blade comprising:
a cutting edge defining a cutting plane and configured to engage a workpiece during movement of the band saw blade in a cutting direction;
a back edge located on an opposite side of the band saw blade relative to the cutting edge and defining a back edge pattern comprising, in sequential order in a direction opposite to the cutting direction:
a ramp-down section having a ramp-down length and defining an acute ramp-down angle relative to a plane parallel to the cutting plane;
a first ramp-up section having a first ramp-up length and defining a first acute ramp-up angle relative to the plane parallel to the cutting plane;
an intermediate section having an intermediate length and oriented parallel to the cutting plane;
a second ramp-up section having a second ramp-up length and defining a second acute ramp-up angle relative to the plane parallel to the cutting plane; and
a spacing section having a spacing length and oriented at least substantially parallel to the cutting plane.
17. The band saw blade of claim 16 , wherein a sum of the first ramp-up length, the intermediate length, and the second ramp-up length is greater than each of the ramp-down length and the spacing length.