An electromagnetic heating type electromagnetic forming device and method for warm plate

Abstract

Provided are an electromagnetic forming device and method of an electromagnetic heating type heating plate. A heating coil, L-shaped soft magnetic ferrite magnetic core materials, an annular heating silicon steel sheet, a high-frequency power source, a forming coil, a pulse power source, temperature sensors and a female die are included. The multiple L-shaped soft magnetic ferrite magnetic core materials are evenly arranged according to the circumference, the heating coil and the forming coil are sequentially arranged in the space defined by the vertical edges of the L-shaped soft magnetic ferrite magnetic core materials, the annular heating silicon steel sheet, a formed workpiece, the temperature sensors and the female die are sequentially placed at the ends of the vertical edges of the L-shaped soft magnetic ferrite magnetic core materials, and the temperature sensors are located between the formed workpiece and the female die and circumferentially and evenly arranged. The device further comprises an annular insulation sheet which is closely attached to the annular heating silicon steel sheet and is away from one side of the formed workpiece and the other annular heat insulation sheet which is closely attached to the female die and is close to one side of the formed workpiece. Electromagnetic forming of the electromagnetic heating type heating plate is achieved, the formed workpiece achieves forming machining within the temperature range of 373 K to 573 K, the forming plasticity of the formed workpiece can be improved, operation is easy, and the heating efficiency is high.

Description

technical field

[0001] The invention belongs to the field of metal forming and manufacturing, and in particular relates to an electromagnetic heating type electromagnetic forming device and method for warm plate parts, which are mainly used for warm forming processing of metal plate parts. Background technique

[0002] Lightweight is an important technical means to achieve energy saving and emission reduction in aerospace, automobile industry and other fields. The main way to achieve lightweight is to use light alloy materials. High-performance aluminum alloys, titanium alloys, and magnesium alloys have become the preferred materials for modern aerospace and automotive industries; electromagnetic forming is a high-speed pulse forming technology. It can greatly improve the formability of metal materials, and is one of the effective means to solve the difficulty of forming light alloys.

[0003] In the existing electromagnetic forming technology of room temperature plate part...

Examples

Embodiment 1

[0082] Step 1: Follow the image 3 (c) Arrange six L-shaped soft ferrite core materials evenly according to the circumference, so that one side (vertical side) of the L-shaped soft ferrite core material is parallel to the axis of symmetry, and the other side (horizontal side) ) point to the axis of symmetry; Step 2: according to Figure 5 Indicates that the heating coil is wound with multiple insulated copper wires with a diameter of less than 0.3mm; the shaped coil is wound with a single insulated copper wire and a reinforcement material; figure 1 As shown, the heating coil and the forming coil are placed in the space surrounded by the vertical side of the L-shaped soft ferrite core material in turn, and the axes of the heating coil and the forming coil are symmetrical to the L-shaped soft ferrite core material Axes are collinear; Step 4: According to figure 1 As shown, at the end of the vertical side of the L-shaped soft ferrite core material, place the ring-shaped heating...

Embodiment 2

[0084] Step 1: Follow the image 3 (d) Arrange eight L-shaped soft ferrite core materials evenly according to the circumference, so that one side (vertical side) of the L-shaped soft ferrite core material is parallel to the axis of symmetry, and the other side (horizontal side) ) point to the axis of symmetry; Step 2: according to Figure 5 Indicates that the heating coil is wound with multiple insulated copper wires with a diameter of less than 0.3mm; the shaped coil is wound with a single insulated copper wire and a reinforcement material; figure 2 As shown, the heating coil and the forming coil are placed in the space surrounded by the vertical side of the L-shaped soft ferrite core material in turn, and the axes of the heating coil and the forming coil are symmetrical to the L-shaped soft ferrite core material The axes are collinear; Step 4: Stick the ring-shaped heat insulating sheet on the side of the ring-shaped heating silicon steel sheet away from the formed workpie...

technical field

[0001] The invention belongs to the field of metal forming and manufacturing, and in particular relates to an electromagnetic heating type electromagnetic forming device and method for warm plate parts, which are mainly used for warm forming processing of metal plate parts. Background technique

[0002] Lightweight is an important technical means to achieve energy saving and emission reduction in aerospace, automobile industry and other fields. The main way to achieve lightweight is to use light alloy materials. High-performance aluminum alloys, titanium alloys, and magnesium alloys have become the preferred materials for modern aerospace and automotive industries; electromagnetic forming is a high-speed pulse forming technology. It can greatly improve the formability of metal materials, and is one of the effective means to solve the difficulty of forming light alloys.

[0003] In the existing electromagnetic forming technology of room temperature plate part...

Examples

Embodiment 1

[0082] Step 1: Follow the image 3 (c) Arrange six L-shaped soft ferrite core materials evenly according to the circumference, so that one side (vertical side) of the L-shaped soft ferrite core material is parallel to the axis of symmetry, and the other side (horizontal side) ) point to the axis of symmetry; Step 2: according to Figure 5 Indicates that the heating coil is wound with multiple insulated copper wires with a diameter of less than 0.3mm; the shaped coil is wound with a single insulated copper wire and a reinforcement material; figure 1 As shown, the heating coil and the forming coil are placed in the space surrounded by the vertical side of the L-shaped soft ferrite core material in turn, and the axes of the heating coil and the forming coil are symmetrical to the L-shaped soft ferrite core material Axes are collinear; Step 4: According to figure 1 As shown, at the end of the vertical side of the L-shaped soft ferrite core material, place the ring-shaped heating...

Embodiment 2

[0084] Step 1: Follow the image 3 (d) Arrange eight L-shaped soft ferrite core materials evenly according to the circumference, so that one side (vertical side) of the L-shaped soft ferrite core material is parallel to the axis of symmetry, and the other side (horizontal side) ) point to the axis of symmetry; Step 2: according to Figure 5 Indicates that the heating coil is wound with multiple insulated copper wires with a diameter of less than 0.3mm; the shaped coil is wound with a single insulated copper wire and a reinforcement material; figure 2 As shown, the heating coil and the forming coil are placed in the space surrounded by the vertical side of the L-shaped soft ferrite core material in turn, and the axes of the heating coil and the forming coil are symmetrical to the L-shaped soft ferrite core material The axes are collinear; Step 4: Stick the ring-shaped heat insulating sheet on the side of the ring-shaped heating silicon steel sheet away from the formed workpie...

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