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A controllable progressive loading and clamping device and method for laser joining of thermoplastic composite materials and light alloys

A composite material and lightweight alloy technology, applied in the field of controllable progressive loading and clamping equipment, can solve the problems of complex and cumbersome process, low efficiency, long time consumption, etc., achieve process parameter optimization, high degree of flexibility, and promote flow and diffusion Effect

Active Publication Date: 2021-09-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional technologies for connecting thermoplastic composites and lightweight alloys mainly include adhesive bonding and mechanical riveting, which are complex and cumbersome, time-consuming and inefficient

Method used

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  • A controllable progressive loading and clamping device and method for laser joining of thermoplastic composite materials and light alloys
  • A controllable progressive loading and clamping device and method for laser joining of thermoplastic composite materials and light alloys
  • A controllable progressive loading and clamping device and method for laser joining of thermoplastic composite materials and light alloys

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Embodiment

[0035] Such as figure 1 shown. The invention discloses a controllable progressive loading and clamping device for laser connection of thermoplastic composite materials and light alloys, including a working platform, a fixing system, a monitoring and feedback system, a control center, a pressure applying system and a return frame.

[0036] The working platform 1 is used for thermoplastic composite materials, and is characterized in that there are a plurality of positioning holes 15 for fixing the clamping equipment on the working platform 1;

[0037] The fixing system is used to fix the clamping equipment and connecting parts, including the main fixed arm 7, the auxiliary fixed arm 8, the rotating rod 5, the limit plate 4, the main card holder 6 and the auxiliary card holder 9. The main fixed arm 7 and the auxiliary fixed arm 9 are connected to the bracket through the rotating rod 5, the bottom of the main fixed arm 7 is inserted into the positioning hole, and the auxiliary fi...

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Abstract

The invention discloses a controllable progressive loading and clamping device and method for laser connection of thermoplastic composite materials and light alloys; it includes a working platform, a fixing system, a monitoring and feedback system, a control center, a pressure applying system, and a return type frame. The working platform is used to carry the thermoplastic composite material; the fixing system is used to fix the thermoplastic composite material; the monitoring and feedback system is used to measure the pressure on the surface of the connector and feed back to the control center in real time; the control center increases the pressure according to the preset curve and real-time The pressure information gives commands; the pressure applying system adjusts the pressure on the surface of the connecting parts in real time according to the commands. The present invention can monitor and control the pressure on the surface of the connecting piece in real time, control the pressure applied to the surface of the connecting piece by progressive loading, promote the flow and diffusion of resin at the interface, increase the effective connection area, and improve the performance of thermoplastic composite materials and light alloys. Excellent bonding ability ensures high-quality laser joints of thermoplastic composites and lightweight alloys.

Description

[0001] field: [0002] The invention belongs to the field of laser connection, in particular to a controllable progressive loading and clamping device and method for laser connection of thermoplastic composite materials and light alloys. Background technique: [0003] The composite structure connected by thermoplastic composite material and light alloy can not only exert the excellent properties of the two materials, but also can significantly reduce the weight of the component. This composite structure has been widely used in the fields of automobiles, aviation and aerospace. The traditional technologies for connecting thermoplastic composite materials and lightweight alloys mainly include adhesive bonding and mechanical riveting, which are complex and cumbersome, time-consuming and inefficient. Laser joining technology is a new method developed in recent years to realize the connection of thermoplastic composite materials and light alloys. Laser joining technology has the ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/16B29C65/78
CPCB29C65/16B29C65/7855B29C66/03B29C66/742B29C66/9241
Inventor 占小红卜珩倡李云王飞云杨红艳马婉萍
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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