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THICKNESS OF HARD-FACING DEPOSITS
BUILDUP MATERIALS AND BASE METALS
(Continued)
A deposit of a hard-facing alloy that is too thick can
that are to be hard-faced with the high alloy group
require buildup, it is vital that high interpass
give you more problems than no deposit at all. In most
cases, hard-facing materials should be limited to two
temperatures are maintained while observing the
layers; the first layer will produce an admixture with
following procedures as illustrated in Figure 2-1. Use
the base metal and the second layer will produce the
weaving bead instead of stringer bead when applying
hard-facing. Limit single pass bead thickness to 3/16
desired wear-resistant surface.
inch. Use same technique for second layer. Avoid
severe quench.
To rebuild austenitic manganese steel parts, use the
electrode on page 1-29 as the primary source and the
electrode on page 1-27 as the secondary source.
WORKPIECE POSITIONING
You will get the job done quicker and more
economically if the part being hard-faced is positioned
for downhand welding. When down-hand welding is
not practical, select an electrode recommended for
all-position welding.
2-4





 


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