Research Methods and Applications of Gear Manufacturing Process Optimization

Table 6

The FPOPN level ranking of first-level fuzzy comprehensive evaluation.

Serial number	First-level process	FPOPN level
1	H—Diffusion time	4.0663
2	H—Strong carburizing time	4.0057
3	H—Carbon potential	3.9895
4	H—Carburizing temperature	3.9452
5	M—Grinding wheel speed	3.9122
6	M—Feed rate	3.9122
7	M—Type of grinding wheel	3.7911
8	S—Hardenability bandwidth	3.5166
9	M—Precision of grinding wheel installation	3.5064
10	R—Tool slip velocity	3.3904
…	…	…
88	D—Spline tolerance fit	2.2795