Patent ID: 8967013
Filing Date: 2015-03-03
Classification: B23F,F16H,Y10T

Abstract:
1. A method of producing a gear blank having an outer surface wherein a gear manufactured from said gear blank will have tooth tip lines that do not interfere with tooth root fillets of a mating gear when said gear and said mating gear are run in mesh, said method comprising: defining tooth surfaces of each of the gear and the mating gear; defining the form of a root fillet line of the mating gear; identifying the location of contact interference between the root fillet of the mating gear and a tooth tip of the gear when the gear and mating gear are run in mesh; determining a modified form of the tooth tip line of the gear wherein said modified form matches the form of the root fillet line of the mating gear; machining said gear blank wherein the modified form of the tooth tip line is machined into the outer surface of the gear blank; wherein a gearset having a gear manufactured from a gear blank produced by said machining exhibits an increased tooth contact ratio when compared to a gearset having a gear manufactured from a gear blank not produced by said machining, and, wherein said contact interference is avoided in said gearset having a gear manufactured from a gear blank produced by said machining.