Patent ID: 11897062
Assignee: ILLINOIS TOOL WORKS INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A consumable electrode-fed welding-type system, comprising:
a welding-type power source configured to provide welding-type current to a welding-type circuit, the welding-type circuit comprising a welding-type electrode and a first electrical contact configured to contact an electrode wire over a first contact length of the first electrical contact;
an electrode preheating circuit configured to provide preheating current through a first portion of the welding-type electrode via a second electrical contact configured to contact the electrode wire over a second contact length of the second electrical contact; and
electrode preheat control circuitry configured to control the electrode preheating circuit, wherein a ratio of the second contact length to the distance between the first and second contact lengths is greater than 0 and less than or equal to 1.