4results about How to "Small forming force" patented technology

This invention discloses a servo motor-ultrasonic vibration composite stamping device and method for bipolar plate forming. The device includes a frame, a servo drive mechanism, a double-sided lead screw transmission mechanism, a whole-machine guide mechanism, a moving crossbeam, an ultrasonic vibration mechanism, and a punch and die. This invention uses dual servo motors to drive the double-sided lead screw mechanism to move the moving crossbeam and punch vertically, facilitating the adjustment of displacement, speed, and action sequence during the forming process. It is suitable for parameter setting and process control in bipolar plate forming experiments. Introducing ultrasonic vibration into the bipolar plate stamping process allows the punch to superimpose high-frequency vibration during pressing, which helps reduce forming force and provides a device basis for studying the influence of ultrasonic vibration on the bipolar plate forming process. This invention combines the servo drive structure, ultrasonic vibration mechanism, punch, and die into the same device, facilitating bipolar plate forming and ultrasonic-assisted forming related experiments, and is suitable for process parameter adjustment and forming process research.

The application discloses a method for manufacturing a spherical crown part by using a single-point incremental forming technology, and comprises the following steps: step 1, determining basic forming parameters according to material performance and a target shape; step 2, performing first-pass forming according to a first-pass path, the forming depth is less than the target depth, and an axial compensation amount is reserved; step 3, performing second-pass forming according to a second-pass path on the basis of step 2, so that the radial direction approaches the final profile, and the depth direction reaches the target depth; and step 4, performing third-pass forming according to a third-pass path from the bottom of the spherical crown part to the edge direction of the top on the basis of step 3, so that the spherical crown part is obtained. The application solves the problems of breakage and low precision of existing alloys in the process of single-point incremental forming of a deep-cavity spherical crown part.

The present application relates to a kind of thin-walled high rib ring cylinder multi-degree-of-freedom radial envelope forming equipment, including head, drive component, movement component, column, workbench, main shaft component, workpiece shaft component and base;Drive component includes servo motor, planetary reducer, reversing gear box, servo cylinder, push rod, pressure sensor, left slider, middle slider, right slider, wear-resistant inclined plate, wear-resistant bottom plate, wear-resistant inclined block, wear-resistant bottom block and grating ruler;Movement component includes outer ball seat, inner ball seat, ball cover, inner ball head connecting rod and outer ball head connecting rod;Main shaft component is suspendedly installed on workbench, and main shaft component includes main shaft motor, main shaft box, core roller, copper sleeve, main shaft support cover, main shaft support seat, main shaft, main shaft key and main shaft encoder;Workpiece shaft component is installed on base, including workpiece shaft mounting plate, workpiece, workpiece shaft, workpiece box, workpiece motor and workpiece magnetic grid.The present application can realize thin-walled high rib ring cylinder high-performance high-efficiency forming manufacturing.

This invention discloses a multi-energy field assisted deep drawing device and method for difficult-to-deform alloys with equivalent draw beads, belonging to the field of sheet metal deep drawing processes. It includes a deep drawing punch, a blank holder slidably fitted around the periphery of the deep drawing punch, and a deep drawing die. The deep drawing punch can be inserted into the deep drawing die. A temperature system is symmetrically arranged around the blank holder and the overlapping portion of the deep drawing die and blank holder. The temperature system includes a ring-shaped heating zone centered on the deep drawing punch, a cooling zone, and a second heating zone. The cooling zone is located between the first and second heating zones. When the billet is deep-drawn, the temperature of the cooling zone is lower than that of the first and second heating zones. Since the yield strength of the material varies at different temperatures, controlling the local cooling temperature increases the radial tensile stress in that section of the material, thereby avoiding circumferential wrinkling and improving forming quality. This method allows for applying different temperatures to different materials to change the radial tensile stress, exhibiting greater adaptability.