An electromagnetically driven soft die liquid-filled deep drawing device and process method

Abstract

The invention discloses an electromagnetically driven soft die liquid-filled deep drawing forming device and a process method. The device includes a coil and the coil is arranged parallel to the ground, and a hydraulic chamber is vertically arranged at a certain distance from the coil, and the inside of the hydraulic chamber is arranged There is a magnetic fluid, and the other end of the hydraulic chamber away from the coil is provided with a plate close to the magnetic fluid and a punch vertically close to the plate, and the part of the plate that is not close to the punch is close to the blank holder. The invention combines the advantages of sheet metal hydroforming technology and electromagnetic forming technology, avoids their respective shortcomings, is suitable for sheets of various materials, has no mechanical contact in the forming process, fast forming speed, and high surface quality of workpieces.

Description

technical field [0001] The invention relates to the technical field of mechanical processing and devices, in particular to an electromagnetically driven soft die liquid-filled deep drawing device and a process method. Background technique [0002] Deep drawing is an important sheet forming process, which occupies a very important position in the production process of automobiles, aircrafts, electrical appliances, instruments, electronics and other industrial sectors. For traditional sheet metal, the traditional cold deep drawing process is often used. However, with the development of industries such as automobiles, aircraft, and aerospace, high-strength and light-weight requirements have been put forward for materials, so high-strength steel, aluminum alloy, magnesium alloy and other plates have been widely used. However, the above-mentioned materials have poor plasticity at room temperature, and are difficult to form by cold drawing. The drawing ratio is relatively small, ...

AI Technical Summary

Problems solved by technology

[0005] Sheet hydroforming and sheet electromagnetic forming have their own advantages and disadvantages. Hydroforming has the advantages of simple mold structure, low mold cost, good quality and performance of formed parts, good surface quality, high shape and dimensional accuracy of formed parts and small springback, which can reduce the production of complex parts. Passes and other advantages; but its forming efficiency is not high, suitable for multi-variety and low-volume production

Electromagnetic forming technology can significantly improve the forming limit of materials, with small residual stress, small springback, extremely fast forming speed, easy to realize energy control and production automation, but not all metal materials can be directly processed by this technology, low electrical conductivity The material with high conductivity needs to be used as the "drive body", and the collision between the drive body and the formed sheet will reduce the surface quality and precision of the formed part

Images