Helical gear precision forging;
Multi-objective optimization;
Taguchi method;
Finite element method;
Orthogonal design;
MULTIPLE PERFORMANCE-CHARACTERISTICS;
DIE SHAPE DESIGN;
SENSITIVITY-ANALYSIS;
D O I:
10.1007/s12206-011-0430-z
中图分类号:
TH [机械、仪表工业];
学科分类号:
0802 ;
摘要:
Precision forging of the helical gear is a complex metal forming process under coupled effects with multi-factors. The various process parameters such as deformation temperature, punch velocity and friction conditions affect the forming process differently, thus the optimization design of process parameters is necessary to obtain a good product. In this paper, an optimization method for the helical gear precision forging is proposed based on the finite element method (FEM) and Taguchi method with multi-objective design. The maximum forging force and the die-fill quality are considered as the optimal objectives. The optimal parameters combination is obtained through S/N analysis and the analysis of variance (ANOVA). It is shown that, for helical gears precision forging, the most significant parameters affecting the maximum forging force and the die-fill quality are deformation temperature and friction coefficient. The verified experimental result agrees with the predictive value well, which demonstrates the effectiveness of the proposed optimization method.