Zhang Zhengrong

Metal plate material hydraulic shaping method and its mould device

Metal plate hydraulic-forming die apparatus

Optimized design method of triangular toggle-rod working mechanism of servo mechanical press

Metal plate coupled hydraulic-forming die apparatus

Blanking fracture surface quality detection system based on machine vision and blanking fracture surface quality detection method based on machine vision

Capillary tube orifice mold and method for measuring rheological characteristics of polymer under ultrasonic vibration condition

Press machine body welding deformation eliminating method based on residual stress quantitative analysis

Parallelly connected drive toggle link mechanism of double -toggle bi -motor

Supplementary device of moulding plastics straight forming metal flash of light product of supersound

Device of ultrasonic treatment preparation metallic travel plastics