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First Edition Dated September, 2000 49
Tool - Fewer relaxed tolerances
Assembly ABC
Part A
Part B
Part C
Part B
Part C
Part A
Locating Tool
4.5.5_2
+.02
Key
+
.030
Tolerance +.01
Figure 4.5.5_2 depicts a more traditional manufacturing approach using an
assembly tool. Only one detail is directly involved in achieving the top-level
assembly requirement. Through use of the tool, the tolerances on the detail
part are allowed to be more relaxed, but the tooling tolerance cannot be
ignored in the flowdown. And of course, the recurring and non-recurring
tooling costs have to be accounted for in the cost of achieving the assembly
requirements.