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Michigan
Flame Hardening Company
MACHINE
WAYS, BARS, RAILS, PALLET PLATES, ETC.
MICHIGAN
has the capability of progressively flame hardening machine ways,
bars, and rails up to 20 feet in length and up to 17 inches of adjoining
surfaces (i.e. 4-sided machine ways) without soft areas or transition
zones. MICHIGAN uses a state
of the art liquid polymer injection system on all "straight
line" work, i.e.: ways, bars, rails, pallet plates, etc, is
used to effectively "soften" the quenching process and
eliminate cracks and distortion. Most work calls for and receives
.120" depth of case hardening. This case depth, however, can
be selectively controlled from .060" to .180" depending
on thickness, design, and material of the part being flame hardened.
MICHIGAN has been hardening
machine ways for 37 years. Since being acquired by Detroit
Edge Tool Company, MICHIGAN has fine-tuned its methods
of producing the desired consistent results with minimal defects
and distortion.
ROLLS,
ROLLERS, SHAFTS, TRUNIONS, ETC.
MICHIGAN
can flame harden mill rolls, rollers, shafts, trunions, etc., from
1" diameter to 20" diameter, in lengths up to 18 feet
and weights up to 4,000 pounds. Parts flame hardened on its lathe
are quenched with the same liquid polymer system used in the "straight
line" process for hardening ways.
GEARS,
SPLINES, SHEAVES, ETC.
MICHIGAN
is able to spin harden gears, splines, and sheaves up to 24"
in diameter and 2" thick. Larger pieces can be hardened progressively.
STRAIGHTENING
All work is straightened
to .015" T.I.R. typically. Upon request a straightening tolerance
of .005" can be achieved. MICHIGAN’S
straightening department includes presses ranging from
50 ton to 200-ton capacity. Aside from straightening, MICHIGAN
is able to "de-twist" rails, bars, plates, and ways. Soft
and flame-hardened steels and cast irons can be straightened, as
well as non-ferrous metals such as aluminum and brass. Straightening
service on a contract basis is also offered.
COST
SAVING ADVANTAGES OF FLAME HARDENING
- Higher surface
hardness for longer life.
- Reduced down
time.
- Lower maintenance
costs.
- Lower costs
are applied only to the areas requiring hardening.
- Less distortion.
- Reduced machining
and grinding.
- Reduction
in processing times.
- Ability to
harden parts too long for conventional furnace hardening.
Click
here for the aproximate equivalent hardness numbers for Rockwell
C for steel
MICHIGAN
FLAME HARDENING CO. – YOUR SINGLE SOURCE FOR TOTAL METALWORKING
REQUIREMENTS
MICHIGAN,
being located in a DETCO facility,
is in a unique situation among other flame hardening companies.
Complete manufacturing services are offered with its flame hardening
and straightening services. The wide range of machining and grinding
services indicated in the earlier sections of this web site, offer
an unusual opportunity for "one stop shopping". An un-interrupted
flow with less handling is a definite advantage in securing quality
parts on time. With the interaction of craftsmen and management
personnel of the various disciplines, valuable time can be gained.
The utilization of combined product and service knowledge is also
a great advantage in producing quality parts in the most productive
manner.
Source for illustrations and
charts: Metals handbook, Vol.2, Heat Treating, Cleaning and Finishing,
8th edition, copyright 1964
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