MIL-F-80069D
nonresetting type and shall have a range of O to 9,999 hours in increments of
not greater than 1 hour. The meter shall be sealed to prevent the entrance of
dust and moisture and shall be mounted to withstand shock and vibration
generated by the machine.
3.5 Size and capacity. Unless otherwise specified (see 6.2), the size and
capacity of the machine shall be not less than specified in tables I & II
for the machine size specified.
3.6 Performance. The machine shall be capable of meeting the requirements
of 3.6.1 through 3.6.4.
3.6.1 Type I machine. Type I machines shall be capable of producing
single flares and beads on ferrous and non-ferrous tubes of the sizes
specified in table I. Type I machines shall also be capable of squaring and
deburring all tubes of the above material and sizes. The accuracy of the end
connections shall conform to 3.6.3. The speed of operation shall conform to
3.6.4.
3.6.2 Type II machine. Type II machines shall be capable of producing
single flares, double flares, beads, and 90-degree single and double-lap
flanges on ferrous and non-ferrous tubes of the sizes specified in table II.
The speed of
The accuracy of the end connections shall conform to 3.6.3.
operation shall conform to 3.6.4. Type II machines shall also be capable of
forming expansions and reductions on tube ends.
The accuracy of the end fittings produced, including
3.6.3 Accuracy.
single flares, double flares, beads, and flanges shall be square to the wall
of the tube within one degree, and concentric with the outside diameter of the
tube within 0.005 inch.
3.6.4 Speed of operation. When using squared and deburred tubing of Type
304 or 316 cold drawn, annealed, seamless, stainless steel tubing, the machine
(of any size
shall be capable of producing five samples of the same size,
within the range specified in tables I & II), within the time period
specified below:
-
Five
single flares in not more
than 60 seconds
Single flares
-
Five
beads in not more than 80
seconds
Beads
Type
II machine only
Double flares
-
Five
forming operations in not
-
Type
II machine only
Expansion
more
than 80 seconds
Reductions
-
Type
II machine only
Flanges
-
Type
II machine only
I
NOTE: The above time limitations shall exclude squaring & deburring time;
however, limitations shall include workpiece handling and actual forming time
of the workpiece.
3.6.5 Additional performance requirements. Performance features required
in addition to, or in lieu of,
he requirements herein shall be as specified
and fully described (see 6.2).
3.7 Standard equipment. All standard equipment normally furnished with the
manufacturer's commmercial machine shall be furnished.
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