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Electric arc additive manufacturing device and method for controlling stress deformation through vibration aging

A vibration aging and control device technology, applied in the field of additive manufacturing, can solve the problems of large deformation of formed parts and concentrated stress distribution, and achieve the effects of stress uniformity, stress reduction, and residual stress reduction.

Active Publication Date: 2021-06-04
广东艾迪特智能科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide an arc additive manufacturing device and method that uses vibration aging to control stress deformation, so as to solve the problems of concentrated residual stress distribution and large deformation of formed parts in the current arc additive manufacturing process

Method used

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  • Electric arc additive manufacturing device and method for controlling stress deformation through vibration aging
  • Electric arc additive manufacturing device and method for controlling stress deformation through vibration aging

Examples

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Embodiment

[0049]Example: Using Vibration Aging to Control Stress and Deformation in Arc Additive Manufacturing of Mild Steel

[0050] Grind the substrate clean with an angle grinder and remove oil stains.

[0051] Install and debug the device, and fix the substrate on the upper surface of the base through the electromagnetic clamp. Start the vibrator, apply mechanical vibration on the substrate, and control the vibration by the vibration aging control device. The exciting force of the vibration is 5kN, and the frequency is 50Hz. The torch strikes the arc above the substrate. The type of the welding torch is MAG, the arc current of the welding torch is 180A, the arc voltage is 20V, electricity; the diameter of the welding wire is The shielding gas of the welding torch is a mixture of argon and carbon dioxide, and the gas flow rate is 20L / min. During the additive manufacturing process, the vibration frequency and amplitude are monitored in real time by vibration sensors. After a layer...

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Abstract

The invention belongs to the field of additive manufacturing, and particularly relates to an electric arc additive manufacturing device and method for controlling stress deformation through vibration aging. The device comprises a welding gun, a base plate, a welding workbench, an electromagnetic clamp and a vibration exciter, wherein the electromagnetic clamp is used for fixing the base plate to a welding workbench, and the vibration exciter is connected with the base plate for vibration in the electric arc additive manufacturing process and vibration aging treatment on a component obtained after additive manufacturing. According to the method, vibration aging treatment is conducted on the component after each layer of additive manufacturing and overall additive manufacturing are completed so as to reduce residual stress in the component and control the stress deformation; meanwhile, a vibration sensor is utilized to detect the vibration frequency in real time and feeds back the vibration frequency to a vibration control device, so that the vibration frequency is controlled in real time; and on the basis, the base plate is fixed by using the electromagnetic clamp whose opening and closing can be rapidly controlled, so that time for assembling and disassembling the clamp can be greatly shortened, and the efficiency of vibration aging is effectively improved. According to the electric arc additive manufacturing device and method, the stress deformation in the electric arc additive manufacturing process can be effectively controlled, and the quality of the additive component is improved.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and in particular relates to an arc additive device and method for controlling stress deformation by using vibration aging. Background technique [0002] Arc manufacturing is an advanced digital manufacturing technology that uses the welding arc as the heat source, performs layered slicing according to the CAD model established by the three-dimensional entity of the part, and manufactures the required parts from bottom to top with a certain forming path. It has the advantages of high forming efficiency, low manufacturing cost, short production cycle, high material utilization rate, and wide variety of usable materials. [0003] However, during the arc additive process, the interior of the component undergoes rapid local heating and cooling, and a huge temperature gradient is generated between the substrate and the deposition layer and between the deposition layers. The solidification and shr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23K9/32B33Y10/00B33Y40/00
CPCB23K9/04B23K9/32B33Y10/00B33Y40/00
Inventor 彭勇李攀杨东青王克鸿廖文健黄勇王磊周琦
Owner 广东艾迪特智能科技有限公司
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