Systems, methods, and apparatus to preheat welding wire
AssigneeIllinois Tool Works Inc.
InventorsDennis Roland Sigl, Jake Zwayer
Life of this patent
Estimating the term…
Abstract
Systems, methods, and apparatus to preheat welding wire are disclosed. An example welding assembly for a welding torch includes: a first contact tip configured to conduct welding current to a consumable electrode; a second contact tip configured to conduct preheating current to the consumable electrode; and a cooling body configured to transfer heat from at least the first contact tip to coolant and to conduct the welding current.
Claims19
A welding assembly for a welding torch, the welding assembly comprising:
- a first contact tip configured to conduct welding current to a consumable electrode;
- a second contact tip configured to conduct preheating current to the consumable electrode;
- an electrically conductive cooling body positioned between the first contact tip and the second contact tip and configured to transfer heat from at least the first contact tip to coolant and to conduct the welding current through the electrically conductive cooling body;
- and a contact tip insulator configured to insulate the second contact tip from the first contact tip, the contact tip insulator comprising an exterior surface configured to contact the cooling body to prevent electrical contact between the cooling body and the second contact tip.
A welding assembly for a welding torch, the welding assembly comprising:
- a first contact tip configured to conduct welding current to a consumable electrode;
- a second contact tip configured to conduct preheating current to the consumable electrode;
- a cooling body configured to transfer heat from at least the first contact tip to coolant and to conduct the welding current, wherein the cooling body comprises:
- a liquid coolant inlet port comprising a valve actuator configured to actuate a valve by insertion into a first socket;
- a liquid coolant outlet port comprising a valve actuator configured to actuate a valve by insertion into a second socket;
- and
- a channel to channel the liquid coolant from the liquid coolant inlet port to the liquid coolant outlet port;
- and
- a contact tip insulator configured to insulate the second contact tip from the first contact tip, the contact tip insulator comprising an exterior surface configured to contact the cooling body to prevent electrical contact between the cooling body and the second contact tip, wherein the second contact tip, the cooling body, and the contact tip insulator are configured to enable removal of the second contact tip via the cooling body and the contact tip insulator without removal of the cooling body and the contact tip insulator.
A welding assembly for a welding torch, the welding assembly comprising:
- a first contact tip configured to conduct welding current to a consumable electrode;
- a second contact tip configured to conduct preheating current to the consumable electrode;
- a cooling body configured to transfer heat from at least the first contact tip to coolant and to conduct the welding current, wherein the cooling body comprises:
- a liquid coolant inlet port comprising a valve actuator configured to actuate a valve by insertion into a first socket;
- a liquid coolant outlet port comprising a valve actuator configured to actuate a valve by insertion into a second socket;
- and
- a channel to channel the liquid coolant from the liquid coolant inlet port to the liquid coolant outlet port;
- and
- a contact tip insulator configured to insulate the second contact tip from the first contact tip, the contact tip insulator comprising an exterior surface configured to contact the cooling body to prevent electrical contact between the cooling body and the second contact tip.
Dependencies are inferred from the claim text.