MIL-DTL-45210B(MR)
TABLE I.
Factors in the recorded welding procedure and changes requiring
quality control test.
______________________________________________________________________
Factors to be included
Procedural changes requiring
in recorded welding
revised procedures and test
procedure
_______________________________________________________________________________
1.
Metal alloy composition
When a change in alloy or alloy
composition outside the aluminum
producer's declared chemical range is
made to either of the metals that are
to be joined.
2.
Thickness range of metal
When the thickness range is changed.
3.
Weld time range
When weld cycle range is changed.
4.
Metal cleaning
When method of cleaning is changed from
the recorded methods in the welding
procedure.
5.
Welding Current
When current setting changes outside the
declared range are made.
6.
Type of current
When a change in type or polarity is
made.
7.
Electrode force range
When changes outside the declared range
are made.
________________________________________________________________________________
3.5.2 Weld timer. The weld timer for single impulse welding shall be used to
control the following timing functions: squeeze time, weld time, and hold time.
3.6 Shear load. For information (design) purposes, typical minimum ultimate
shear load per spot weld shall be as shown in table II.
TABLE II.
Typical minimum ultimate shear load
per spot weld
Typical minimum ultimate
Thickness (inch)
shear load (pound-force) per spot
thinner part *
weld (for design purposes)
0.10
50
0.020
135
0.032
235
0.040
310
0.050
430
0.063
610
0.080
855
0.090
1000
0.100
1170
0.112
1340
0.125
1625
* For intermediate thickness, direct interpolation may be used.
3
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