13 *High
Speed DC Reverse
Polarity Electrode All-State®
High Speed Electrodes are recommended for repairing, rebuilding and hard-facing
high speed tools without
the necessity of rehardening the tool. Use for repairing form tools, milling cutters,
lathe bits, boring bars, punches,
cams and reamers. Properties
of Weld Metal Deposits
are tungsten-moly high speed steel that have excellent cutting power and high
toughness and will maintain
a sharp edge at high temperatures. “As welded” deposit is approximately
62-63 Rc, and may be hardened
to 66 Rockwell C by tempering. Heat
Treatment Anneal
1600°F (871°C). Harden 2200°-2225°F (1204°-1218°C).
Quench in oil 250°F (121°C). Draw 1000°F
(538°C). This rehardening data
is suggested for tools subject to distortion or quench cracking due to design.
If tool design
is complicated then the following rehardening treatment should be used: Anneal
1600°F (871°C); harden 2225°F
(1218°C); quench in oil at room temperature; double draw 1000°F (538°C)
one hour plus one hour. Procedure
Follow recommended welding procedure
on pages 2 and 3 and preheat to 730°-930°F (388°-499°C). For
composite fabrication
of cutting tools, machine or grind surface to allow approximately a 3/16" (4.8mm)
finished weld
metal deposit. Preheat to 400°F (204°C). Apply one pass of All-State
Smoothcote® 308L or 309 and finish
with All-State®
high speed tool steel. This assures a sound, even high speed steel deposit.
Postheating or Tempering
Temper to desired hardness or toughness
to withstand condition to which unit will be subjected.
