Cutting members for shaving razors
View Patent ↗A cutting member for a shaving razor includes an elongated blade portion that tapers to a cutting edge, an elongated base portion that is integral with the blade portion, and a bent portion, intermediate the blade portion and the base portion. In some implementations, at least part of the cutting member has a thickness of at least about 0.005 inch (0.127 millimeter).
1. A method comprising:
deforming a continuous strip of material; and then
separating the continuous strip into multiple discrete blades, each blade having a first portion comprising a cutting edge, a second portion comprising a base portion, and a bent portion intermediate the first and second portions, the bent portion has an average thickness that is at least 5 percent less than an average thickness of the base portion.
2. The method of claim 1 , wherein deforming the continuous strip of material comprises pressing the strip of material between a punch and a die.
3. The method of claim 1 , wherein separating the continuous strip comprises stamping the strip.
4. The method of claim 1 , wherein separating the continuous strip comprises punching the strip.
5. The method of claim 1 , further comprising punching longitudinally spaced apart slots in the strip prior to deforming the strip, the slots at least partially separating regions of the strip corresponding to the blades.
6. The method of claim 1 , wherein the continuous strip of material comprises a metal strip.
7. The method of claim 6 , wherein the metal strip comprises about 0.35 to about 0.43 percent carbon, about 0.90 to about 1.35 percent molybdenum, about 0.40 to about 0.90 percent manganese, about 13 to about 14 percent chromium, no more than about 0.030 percent phosphorus, about 0.20 to about 0.55 percent silicon, and no more than about 0.025 percent sulfur.
8. The method of claim 1 , wherein the continuous strip has an average thickness of about 0.005 inch (0.127 millimeter) to about 0.01 inch (0.254 millimeter).
9. A method comprising:
deforming a continuous strip of material; and then
separating the continuous strip into multiple discrete blades, each blade having a first portion comprising a cutting edge, a second portion comprising a base portion, and a bent portion intermediate the first and second portions, the bent portion has an average thickness that is from about 5 percent to about 30 percent less than an average thickness of the base portion.
10. The method of claim 9 , wherein deforming the continuous strip of material comprises pressing the strip of material between a punch and a die.
11. The method of claim 9 , wherein separating the continuous strip comprises stamping the strip.
12. The method of claim 9 , wherein separating the continuous strip comprises punching the strip.
13. The method of claim 9 , further comprising punching longitudinally spaced apart slots in the strip prior to deforming the strip, the slots at least partially separating regions of the strip corresponding to the blades.
14. The method of claim 9 , wherein the continuous strip of material comprises a metal strip.
15. The method of claim 14 , wherein the metal strip comprises about 0.35 to about 0.43 percent carbon, about 0.90 to about 1.35 percent molybdenum, about 0.40 to about 0.90 percent manganese, about 13 to about 14 percent chromium, no more than about 0.030 percent phosphorus, about 0.20 to about 0.55 percent silicon, and no more than about 0.025 percent sulfur.
16. The method of claim 9 , wherein the continuous strip has an average thickness of about 0.005 inch (0.127 millimeter) to about 0.01 inch (0.254 millimeter).