Catalog Supplement for 2006 - JRP
Catalog Supplement for 2006 - JRP
Catalog Supplement for 2006 - JRP
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The Manufacturing Process…<br />
In order to ensure optimum quality control, ARP has<br />
grown to be exceptionally self-reliant and now controls<br />
all aspects of the manufacturing process. All operations<br />
are per<strong>for</strong>med in-house and closely monitored. This is<br />
how ARP has been able to establish a reputation <strong>for</strong> “zero<br />
defects” quality throughout the industry.<br />
The process begins right at the mill, where ARP orders<br />
only premium grade materials including several proprietary<br />
alloys. The ever-popular 8740 chrome moly steel, <strong>for</strong><br />
example, comes from the mill in four distinct grades. The<br />
lowest is “commercial,” which is followed by “aircraft quality.”<br />
ARP uses only the top two grades (SDF and CHQ), which<br />
cost twice as much, but provide the foundation <strong>for</strong> defect-free<br />
fasteners. These materials come in bar stock (<strong>for</strong> studs) and<br />
huge coils (<strong>for</strong> bolts).<br />
Trans<strong>for</strong>ming raw material into a fastener begins with<br />
“hot” and “cold” heading processes. Material is fed into powerful<br />
devices and cold <strong>for</strong>ged, or induction-heated and <strong>for</strong>med<br />
under tons of pressure.<br />
Material comes from the<br />
mill in large coils...which<br />
subsequently will be fed into<br />
cold-headers and <strong>for</strong>med into<br />
bolts.<br />
THE COMPANY<br />
Some bolts begin as induction-heated lengths of<br />
bar stock that are <strong>for</strong>ged on huge presses with the<br />
desired head shape.<br />
ARP’s bank of cold-headers can handle material up to 5/8˝ diameter<br />
and <strong>for</strong>m bolts in a multi-phase operation.<br />
An overview of part of ARP’s expansive machining operations. The shop<br />
is laid out <strong>for</strong> optimum efficiency.<br />
800-826-3045<br />
Lengths of bar stock are automatically fed into special machines and<br />
cut to the appropriate length.<br />
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