Magnetic medium assisted tailor welded blank deep drawing forming device and forming method
A technology of magnetic medium and tailor-welded blanks, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of difficult regulation, twisting and cracking, wrinkling, etc., and achieve the effect of enriching the technical system
Active Publication Date: 2021-07-27
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
[0007] The purpose of the present invention is to solve the difficulty in controlling the coordinated deformation of different parts of the sheet metal and the movement of the weld seam due to the non-uniform material of each part during the deep drawing of the traditional tailor-welded blank, and it is easy to cause wrinkles, distortions and cracking defects, etc. series of puzzles
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specific Embodiment approach 1
[0046] Specific implementation mode one: combine Figure 1-9 Describe this embodiment, this embodiment includes punch 1, first block blank holder 2-1, second block blank holder 2-2, first hydraulic control system 3-1, second hydraulic control system 3 -2, mandrel 4, first sliding coil group 4-1, second sliding coil group 4-2, die 5, pressure relief system 6, first controller 7-1, second controller 7-2, Support 8, plunger 9, magnetic medium 10, magnetic medium injection cylinder 11, cooling device 12 and Hall sensor 15; the first segmented blank holder 2-1 and the second segmented blank holder 2-2 are located The outer circumference of the punch 1 is controlled by the first hydraulic control system 3-1 and the second hydraulic control system 3-2 respectively. Several Hall sensors 15 are arranged in the punch 1, and the die 5 is located at Below the first segmented blank holder 2-1 and the second segmented blank holder 2-2, and they are arranged facing up and down, the outer pe...
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The invention provides a magnetic medium assisted tailor welded blank deep drawing forming device and forming method. The device controls the size of the blank holder force through a hydraulic control system, and uses a magnetic medium injection cylinder to inject magnetic medium into the cavity of the concave mold through a liquid hole. The sliding coil group passes through several mandrels installed on the support and is slidingly connected with the support. The strength of the regional magnetic field is adjusted by independently controlling the magnitude of the energizing current of each coil, changing the relative position of the coils and controlling the number of coils on both sides of the forming device. , change the rheological properties and distribution state of the magnetic medium to achieve different force transmission effects, and set the plunger to adjust the extrusion force of the magnetic medium during the forming process to ensure the smooth progress of the deep drawing and the chain structure without damage ; This method can meet the actual needs of different personalized customization according to the forming requirements of different parts of the component, multi-dimensionally control the size of the regional magnetic field, and optimize the effect of magnetic medium assisted forming, which is suitable for the field of magnetic medium assisted deep drawing.
Description
technical field [0001] The invention relates to a soft mold deep-drawing forming process method of a tailor-welded blank, in particular to a magnetic-medium-assisted tailor-welded blank deep-drawing forming device and method, and belongs to the technical field of tailor-welded blank forming. Background technique [0002] With the increasing requirements for the formability and serviceability of materials required for parts and components in cutting-edge fields such as advanced manufacturing technology, sheet metal components that are easy to achieve various requirements such as lightweight, high precision, and low consumption have been widely used. Therefore, It has promoted the continuous innovation and rapid development of sheet metal forming technology. [0003] Tailored welded blanks are made of two or more sheets of different thickness, material or surface coating, which are welded as a whole after blanking, which can meet the requirements of different parts and perform...
Claims
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IPC IPC(8): B21D37/12B21D22/22
CPCB21D22/22B21D37/12
Inventor 李峰牟媛媛柳振宇
Owner HARBIN UNIV OF SCI & TECH