Special press forming technology

Special press forming technology:

Hyundai toward stamping complex technical requirements, the block size increases, while the parts are more relevant, larger carrying capacity and internal stress of severe restrictions other direction. This requires special metal forming and promoting technologies such as hydroforming, precision forming, explosive forming, spin forming, non-die forming, laser forming and electromagnetic forming technology. Limited to this space, here introduces the internal pressure forming and electromagnetic forming two technologies.
Hyundai toward stamping complex technical requirements, the block size increases, while the parts are more relevant, larger carrying capacity and internal stress of severe restrictions other direction. This requires special metal forming and promoting technologies such as hydroforming, precision forming, explosive forming, spin forming, non-die forming, laser forming and electromagnetic forming technology. Limited to this space, here introduces the internal pressure forming and electromagnetic forming two technologies.
Hydraulic or elastic-body forming technology into its high-pressure forming process generally includes:
(1) the expansion of the effective medium ice or elastomer onto the internal pressure of slow growth penalty process;
(2) hydrostatic pressure fine bone formation;
(3) extreme pressure, such as an explosion of dynamic process and so on. Amorphous medium can be solid, liquid or gas, media in the system can be based on the shape to be machined to make any changes, perform punch function, so the media can be equivalent to a universal mold.
Hydraulic hydroforming and other metal forming techniques, compared with several significant advantages:
(1) time during the forming process can be processed, such as bridge, roof panels, door frames and other large complex three-dimensional geometry of the workpiece;
(2) because the liquid cooling effect during the forming process, the workpiece to be "cold enhanced" and got more than punching strength of the workpiece, which makes allows the use of thinner plates, so that the workpiece is more lightweight;
(3) The board only with the workpiece surface pressure liquid contact, the more gentle pressing process, change parts forming uniform, get well-balanced pressure distribution, and better able to smooth outer surface of the winner;
(4) hydraulic tools in bloom and some die and the cost can be reduced 40%, in particular, reducing the convex parts processing cycle time is shorter, about 0.1-0.5MIN, special forming process which is shorter, can be realized mass production.
The use of electromagnetic force generated by the coil power of the electromagnetic forming process, is quite another promising new means of processing. The nuclear fission process from the sixties the results of research, but unfortunately has not been focusing on. Schematic of electromagnetic forming process, when the coil into the alternating current. To establish a magnetic field within a few microseconds, so that the metal parts, especially copper and aluminum material conductivity and strong sense of give birth to current, current sense of birth, current induced by the magnetic force in turn, make the workpiece consistent tension and die rapidly forming. When the coil in the workpiece, the electromagnetic force will shape the workpiece outside the sheets, is the current application of a broader process; When the coil is placed parallel to the plates, the electromagnetic force will stretch the workpiece shape.
Electromagnetic Forming Technology, a non-contact forming process, forming its outstanding advantages First, the rapid processing of high efficiency, the second is commonly used in metal and nonmetal connections, replace the bonding or welding; The third is to help non-consumption of preserved materials such as lubricating grease, etc., benefit the environment.