| 1. | This narrow range of blank - holder force is difficult to determine
合适的压边力范围是很难决定的。 |
| 2. | Development of fuzzy expert control technique for aluminum electrolysis
基于模糊神经网络的压边力优化控制专家系统 |
| 3. | Uniform blank holder force and local holder force ( non - uniform ) were tried
对压边力的分布采用了均匀压边力和局部改变压边力。 |
| 4. | Elastic rubber method and rigid blank holders were used to apply blank holder force with different methods
对压边力的控制采用了弹性橡胶控制和刚性直接控制法。 |
| 5. | At the same time , acquiring the formula of the minimum blank holder force that to be sure that the blank holder will not be lifted
同时，又得到了保证拉深零件时压边圈不被?起的最小压边力公式。 |
| 6. | For wrinkles occurring in the central area of a stamped part with a complex shape , a workable range of blank - holder force does not even exist
因为起皱在冲压零件的中心位置以一个复杂的形状形成，甚至不存在一个合适的压边力范围。 |
| 7. | The work reported here , adaptive numerical simulation was developed to adjust the magnitude of bhf continuously during the simulation process
摘要拉裂和起皱是板材拉深过程中的主要失效方式，研究表明，合理的压边力能有效降低拉深失效的可能性。 |
| 8. | Hence , the blank - holder force must lie within a narrow range , above that necessary to suppress wrinkles on the one hand , and below that which produces fracture on the other
因此，压边力必须控制在一定的范围内，一方面增抑制起皱，另一方面防止破裂。 |
| 9. | Taking typical drawing workpiece circular cup as the research object , a stamping technological parameters artificial neural network ( ann ) model for bhf forecast has been built up
摘要压边力是板料成形中的一个重要的工艺参数，也是板料拉深成形中的重要控制手段。 |
| 10. | The predominant failure mode in stamping of sheet metal parts are wrinkling and fracture , in general , these defects may be eliminated by appropriate manipulated the blank holder forces
摘要起皱和断裂是板料成形过程的主要失效模式，合理控制成形过程中压边力，可以消除这些缺陷，提高成形性能。 |
