| Dekalb, IL, October 2002
- LMC introduced the SIP15D Impact Press at Fabtech 2002
in Cleveland, OH. The new generation press is designed
to straighten and cut blanks from small wire diameters
at high cycle rates. The press cuts solid rounds or shaped
material from coil stock in virtually any metal in its
cold state. The SIP15D cuts at 1000 cycles per minute
in diameters from .040" to .125." Length tolerances are
held at +/- 0.001" or less. The ends are virtually burr
free, smooth, and without crack formations or work hardening.
The system is clean with nothing to recycle and requires
minimum floor space.
The LMC press system uses an extreme velocity ram that
impacts the tooling, and in less than a millisecond
creates an adiabatic effect in the metal at the point
of separation. This press system has been successful
in its use of the adiabatic process for improving part
quality consistency, as well as in the cost savings
from high cycle rates, increased tooling life, minimal
material waste, and lower energy costs, time, floor
space, and labor. LMC, considered the world's foremost
authority in Adiabatic Manufacturing Technology, introduced
the process in the early 1980's and integrated it into
their highly efficient patented press system for the
manufacturing of precision blanks. This technology has
been known to engineers as Adiabatic Softening.
LMC offers three other standard presses that will cut
off solid round or shaped stock from coil or bar stock,
and tubing from bar stock using its patented floating/fixed
mandrel system. The SIP25 cuts up to 1/4" stock at cycle
rates up to 500 ppm, the SIP50 cuts up to 1/2" stock at
cycle rates up to 350 ppm, and the SIP100 cuts up to
1" stock at cycle rates up to 225 ppm. Diameters up
to 4.00" can be cut on LMC's larger press systems.
LMC has successfully developed their patented high
velocity technology into all its presses and tooling.
The press systems incease quality consistency and production
cycle times with less press maintenance and an operating
warranty of up to 12,000 hours. The mechanical press
system meets all the conditions for Adiabatic Softening
in most metals to include low and high carbon steels,
stainless, brass, copper, titanium, aluminum, lead and
more. Regardless of the metal, the process works the
same. This technology eliminates many drawbacks of the
conventional methods in the production of metal blanks.
The LMC press provides cut-off blanks automatically
from either coil, bar stock or tubing with cut off or
fracture time less than a millisecond. The mechanical
extreme velocity process creates a heat band or fracture
zone across the metal only a few thousandths of an inch
wide and producing blanks ready for forming or machining.
Heat is not allowed to dissapate into the metal and
the part shows no work hardening or micro cracks on
the ends. The process provides outstanding mass and
volumn control, ideal for billets used in forging and
Length variations of less than +/- .001" will be maintained
regardless of overall length. Manufacturers have eliminated
post production processes; no burrs and no end grinding.
CPK results can be expected to significantly improve.
Unique to this technology is that there is theoretically
no limit to the volume size of metal that can be cut.
Die life in some instances extends to over 50 million
cycles with proper maintenance.
Today, LMC is offering the Adiabatic Technology to
manufacturers worldwide with turnkey systems for the
cut off of bar, coil and tube stock from round or shaped
metals, including secondary equipment such as barfeeders,
arbor and roll straighteners, and coilhandling. Its
APM Process Center, a division of LMC, provides a cut
off and blanking service to manufacturers to propose
parts to their specifications.
The Company has been providing the LMC Adiabatic Process
Technology to manufacturers throughout the world since
1980 from its engineering and manufacturing facility
60 miles west of Chicago. LMC also utilizes the process
for net shape forming, blanking and powder compaction.