TM 9-3405-205-14 & P
GENERAL SAWING INSTRUCTIONS
PRODUCTION APPLICATION CHECK LIST
1
Plan sequence of cuts
8
Run one part and time cut.
2
Select saw blade and install saw guides
9
Check cutting rate.
3
Install and tension saw band
10.
Adjust feed and set-up.
4
Select and mount tooling
11.
Examine chip formation.
5
Set work stops
12.
Check completed parts.
6
Set band speed
13.
Change band when required.
7
Run through without parts
14.
Clean out chip drawer.
HIGH SPEED SAWING APPLICATIONS (USING CARBON SAW BLADE ONLY)
Only carbon blades should be used for high speed sawing applications. (Never run a high speed steel blade over 500
Surface Feet per Minute.) This refers to sawing of aluminum, magnesium, brass and other free machining metals, as well
as wood, plastics, and composition materials at band speeds over 2000 FPM. Short, high speed sawing jobs may be
performed with insert guides. Roller guides are preferred, however, and should be used for all long jobs and all production
runs except those requiring maximum accuracy.
Most high speed sawing jobs can be fed very rapidly, usually manually, and as fast as the operator's dexterity permits on
thin work
HIGH SPEED APPLICATIONS CHECK LIST
OPERATIONS
1 Check advisibility of high speed sawing the material consulting speed and feed chart.
2 Select sequence of cuts.
3. Select saw blade (carbon blade).
4 Install roller saw guides.
5 Install-and tension saw band.
6 Select and mount tooling.
7 Set band speed.
8 Determine fastest practical feed method by trying both power and hand feed methods.
9 Set work stops if repetitive job.
FRICTION SAWING OPERATION
In friction sawing, momentary contact between the material being cut and the fast moving saw blade produces enough
friction to heat the material to its softening point. As it becomes soft it is cut away by the saw teeth. This method cuts
many times faster than conventional methods, and more important, cuts many materials which can be machined in no
other way. (Band saw size-limitation , & 1")
1. Coolant Mist
Coolant mist is NOT USED during friction sawing. Caution: If an oil based coolant has been used, it will be
necessary to drain and clean the coolant system before friction sawing because-of the danger of sparks falling into
the coolant.
2. Saw Blade
Worn out saw blades may be used for the occasional friction sawing job; It-may be difficult to guide, however,
because of the uneven wear. For greatest economy. and accuracy, a-friction saw blade should be used. A low
speed sawing operation will produce sharply curled chips, the result of a hard shearing action; whereas those
chips produced by friction sawing are shorter with less curl and with pronounced cracks and wrinkles.
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