Patent ID: 11958122
Assignee: BEKAERT BINJIANG STEEL CORD CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method to produce a saw wire comprising the steps of:
providing a steel wire with a diameter (d) and a breaking load (Fm);
leading said steel wire over one or more bending devices,
said bending devices having teeth with a teeth radius (Rt),
said steel wire being held under a tension (T) immediately after the one or more bending devices,
thereby inducing bends in said steel wire at the teeth and segments in said steel wire between the teeth thereby forming a saw wire,, wherein each bending device has an intermeshing toothed wheel pair through which the steel wire is led thereby forming crimps in said steel wire,, wherein the intermeshing toothed wheel pairs have indentations that are between 1 to 10 times the diameter (d) of said steel wire, and, wherein the teeth radius (Rt) is larger than or equal to 4 times the diameter (d), while said tension (T) is held between 3% and 30% of the breaking load (Fm), for controlling the average product of a top curvature (ki) at each of said bends with half of said diameter (d) over at least 50 bends to within 0.5 and 5 percent.