Electrodes #4948438

The TUFFALOY copper-tungsten, tungsten and molybdenum-faced tips listed here withstand greater heat and pressure, at the expense of some conductivity. Besides being used for spot welding high resistance base metals, they are useful in achieving "heat balance" when welding dissimilar metals. (The higher resistance electrode is used against the lower resistance, or thinner, member, to help contain the heat generated.) They have the same diameters and tapers as the standard straight tips in this catalog. Bodies are of Class 2 alloy. Lengths other than those shown can be ordered.

TUFFALOY now stocks the headpin style welding system components that adds to your selection for stud and nut welding needs. From our standard style to our Arctic, that produces higher quality welds and longer life, you can select the product that best meets your needs.

Heads are made from RWMA class 2 material that are an optimal cost consumable. Class 3 and 10W are available for longer life. With a concave seat the pin locates in the center of assembly when air is applied to the system. This gives you a repeatable location for automated nut feeders to introduce the nut to the environment.

Pins have a nonconductive surface on a steel matrix that gives longer life in a repetitive motion environment. With the threaded head securing the pin in place it makes it easy to replace the pin to meet your requirements. TUFFALOY can design pins for special applications.

These electrodes are all machined from bar stock.

Special designs can be made to order.
Alloy Class Taper No Face 'F' Description Part Num
2 5RW 1 220 186-0220
2 4RW 12 221 186-0221
2 4RW 1 223 186-0223
2 5RW 1 224 186-0224
2 5RW 1 225 186-0225
2 5RW 2 226 186-0226
2 4RW 2 227 186-0227
2 5RW 1-12 228 186-0228
2 4RW 1-12 229 186-0229

Swivel tips have ball jointed swivel heads to compensate for minor misalignment and to eliminate marking of the work surface. They are all machined from Class 2 (Tuff 77) alloy bar stock. The S and SS series electrodes water hole does not reach the head. In the OS and OSH style electrodes the water does contact the head and an O-ring is used to seal the head. In the SS Series electrode a spring is used to keep pressure on the head for better positioning. Class 1 (Tuff 88) and Class 3 (Tuff 55) heads are also avalible upon request.

DOUBLE-BEND, WITH STANDARD NOSE DESIGNS

These standard cold-formed electrodes are bent from straight electrodes (some after added machining) and have the same hardness and conductivity. They outlast, many times over, the old cast and forged electrodes of similar geometry, which are impossible to cool adequately.

The table shows a wide range of electrodes generally available from stock. For sizes not shown, refer to the diagrams and description key at the bottom of the page, and order what you need. All measurements will be accurate. However, over-all length, in 18-in. multiples, will be held to within 116-in.

Tapers, water holes, and nose designs are the same as the standard straight electrodes in this catalog. Water tubes can be furnished.

Standard nose designs other than those shown here may be furnished on short order. Follow the "Key to Description", using a 'B' for Dome nose, 'C' for flat nose, 'E' for truncated cone, and 'F' for radius nose.

Straight electrodes from TUFFALOY are distinguished for their high conductivity and resistance to deformation, which are the two major requirements of resistance welding electrodes. Modern manufacturing methods and constant scientific quality control make the difference, starting with the alloying of pure copper, through bar extrusion, and the conversion of this high-quality bar stock into welding electrodes.

TUFFALOY ensures conformity to all standard dimensions. Before shipment, all electrodes must pass inspection by gage for uniform length, taper, and outline of point.

The bright shiny look of TUFFALOY electrodes is the result of a passivation process that eliminates excessive oxidation. It reflects the deep-down quality built into these electrodes and into all TUFFALOY products.

Only RWMA Class 1 (TUFFALOY 88) and Class 2 (TUFFALOY 77) electrodes are listed here. Class 3 alloy (TUFFALOY 55) electrodes are also available. For recommended uses of these alloys, see "Help Aids" in the upper right hand corner of this page.

To order Class 3 alloy electrodes, change description code to indicate it: see Key to Description, above.

Cold-formed electrodes with a single bend have a standard pointed nose design. Other single bend electrodes with flat noses or other special designed noses and configurations are available on special order. Double bend and flattened electrodes are made from bar stock. These are some of the standard designs available, but special designs can also be made. Standard electrodes are made of Class 2 alloy; Class 1 alloy can also be ordered.