The following table summarizes the initial and final number of parts and monthly hours of work for the cell. The supporting calculations are included in the following pages. Please note that the author has disguised some of the data as not to reveal any proprietary information.
Table A1. Initial and Final Number of Cell Parts and Required Monthly Hours/FWC
Factory Work Code
(FWC) Initial
Total Hours per
Month Initial
Total Number of Parts Final
Total Hours per
Month Final
Total Number of Parts
Conventional Drills 241 236
Conventional Mills 424 374
Conventional Saws 92 85
NC FWC No. 1 287 54 287 54
NC FWC No. 5 1260 23 631 15
NC FWC No. 7 441 48 441 48
NC FWC No. 9 454 9 309 6
Deburr 1646 1478 134 123
Table A2. Illustrative …show more content…
9 1.2
Deburr 2
The next tables present the initial cell capacity calculations. For the reader’s information, the following table summarizes the meaning of the Factory Work Codes expressed numerically in these tables.
Table A4. Factory Work Codes Numerical Meanings
FWC Numerical Equivalent Comments
Conventional Drills All FWC’s in the 1000’s
Conventional Mills All FWC’s in the 1300’s
Conventional Saws All FWC’s in the 1500’s
NC FWC No.1 18K3 Vertical Mill, 3 Axis, 1 Spindle (FMS)
NC FWC No.5 1898 Vertical Mill, 4 Axis, 1 Spindle
NC FWC No.7 1966 Vertical Mill, 5 Axis, 3 Spindles
NC FWC No. 9 1949 Horizontal Mill, 5 Axis, 1 Spindle
Deburr All FWC’s in the 4000’s and 0700’s All manual operations such as Deburr, Part Mark, and Protective Wrap are included under this heading
The tables contain the part routing, the standard set-up and run time, the variance to standard associated with the Factory Work Code at which each operation takes place (see first line in each table) and the part monthly demand.
Required time per operation is calculated as