Automatic additive manufacturing method and device for robot plasma arc double-cooled filler rod

A plasma arc and additive manufacturing technology, which is applied in the field of automatic additive manufacturing with ion arc double cold filling and wire feeding, can solve the problems of slow forming speed and low deposition efficiency, and achieves improved deposition speed, low cost and high efficiency, The effect of reducing the dilution rate

Active Publication Date: 2018-05-25
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies of the prior art discovered above, the purpose of the present invention is to solve the problems of slow forming speed and low deposition efficiency in the existing robotic arc automatic additive manufacturing, and to meet the manufacturing needs of new composite material structural parts

Method used

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  • Automatic additive manufacturing method and device for robot plasma arc double-cooled filler rod
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  • Automatic additive manufacturing method and device for robot plasma arc double-cooled filler rod

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Effect test

Embodiment 1

[0039] The invention provides a robotic plasma arc automatic double-feed wire additive manufacturing method, comprising the following steps:

[0040] Step 1, before stacking, adjust the position of wire feed nozzle 3 and wire feed nozzle Ⅱ, so that the end of the wire delivered by the two wire feed nozzles is directly above the substrate on the working platform and 5mm directly below the plasma gun 13 Then fine-tune the knobs on wire feed nozzle 3 and wire feed nozzle Ⅱ, so that the wires sent by the two wire feed nozzles can be melted in the same molten pool;

[0041] Step 2, turn on the power, wait for the communication signal between the robot and the dual-wire coordinator 8 to be ready, and then set the wire feeding speeds of I wire feeder 6 and II wire feeder 7 respectively through the dual-wire coordinator 8, and the I wire feeder The wire feeding speed of 6 and II wire feeder 7 is 1m / min;

[0042]Step 3, the robot 12 carries the plasma torch 13 to the welding starting ...

Embodiment 2

[0049] The invention provides a robotic plasma arc automatic double cold-fill wire additive manufacturing method, comprising the following steps:

[0050] Step 1, before stacking, adjust the position of wire feed nozzle 3 and wire feed nozzle Ⅱ, so that the end of the wire delivered by the two wire feed nozzles is directly above the substrate on the working platform and 4mm directly below the plasma gun 13 Then fine-tune the knobs on wire feed nozzle 3 and wire feed nozzle Ⅱ, so that the wires sent by the two wire feed nozzles can be melted in the same molten pool;

[0051] Step 2, turn on the power, wait for the communication signal between the robot and the dual-wire coordinator 8 to be ready, and then set the wire feeding speeds of I wire feeder 6 and II wire feeder 7 respectively through the dual-wire coordinator 8, and the I wire feeder The wire feeding speed of 6 is 0.8m / min, and the wire feeding speed of II wire feeder 7 is 1.2m / min;

[0052] Step 3, the robot 12 carri...

Embodiment 3

[0059] The invention provides a robotic plasma arc automatic double cold-fill wire additive manufacturing method, comprising the following steps:

[0060] Step 1, before stacking, adjust the position of wire feed nozzle 3 and wire feed nozzle Ⅱ, so that the end of the wire delivered by the two wire feed nozzles is directly above the substrate on the working platform and 6mm directly below the plasma gun 13 Then fine-tune the knobs on wire feed nozzle 3 and wire feed nozzle Ⅱ, so that the wires sent by the two wire feed nozzles can be melted in the center of the molten pool;

[0061] Step 2, turn on the power, wait for the communication signal between the robot and the dual-wire coordinator 8 to be ready, and then set the wire feeding speeds of I wire feeder 6 and II wire feeder 7 respectively through the dual-wire coordinator 8, the preset The wire feeding speed is 0.8m / min;

[0062] Step 3, the robot 12 carries the plasma torch 13 to the starting welding position, the robot ...

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Abstract

The invention discloses an automatic additive manufacturing method and device for a robot plasma arc double-cooled filler rod. The device comprises a working platform, a base plate, a plasma welding gun, two wire feeding nozzles, clamps of the wire feeding nozzles, two wire feeders, a twin-wire coordination controller, a robot control cabinet and the like. The method mainly includes the steps thatthe two wire feeders are adopted to feed cold wire materials, and the robot control cabinet and the twin-wire coordination controller are in communication so as to control the two wire feeders to achieve synchronous or alternate feeding; and meanwhile the control cabinet controls a welding machine to achieve synchronization of wire feeding and arc ignition. By adoption of the device, plasma arc additive manufacturing of the double-cooled filler rod made of the same wire material and different types of the wire materials can be achieved by controlling different wire feeding signals by a robotand further changing the varieties and textures of the wire materials. By means of the method and device, plasma arc additive manufacturing of the same type of the double-cooled filler rod made of carbon steel, stainless steel and the like is realized, and the additive manufacturing efficiency is doubled compared with a single-wire mode. Plasma arc additive manufacturing of the double-cooled filler rod different from welding wires can further be realized, and a novel composite material structural member which is low in cost and high in efficiency can be manufactured.

Description

technical field [0001] The invention belongs to the technical field of arc additive manufacturing, and mainly relates to an automatic additive manufacturing method and device for robot plasma arc double cold filling and wire feeding. Background technique [0002] With the development of aerospace, national defense industry and energy power industry, traditional subtractive manufacturing can no longer meet their increasingly higher requirements for metal parts performance, precision, manufacturing cost and cycle time, so new methods for manufacturing high-performance parts are required. method. [0003] Arc additive manufacturing technology emerged in the 1980s. After recent years of development, it has been applied in the field of industrial manufacturing. Additive manufacturing technology is a "top-down" material additive manufacturing method. It integrates digital technology, mechanical processing technology, material processing and other disciplines. It uses the arc gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K10/02
CPCB23K10/027
Inventor 冯曰海孙福建刘思余王克鸿周琦张德库余进黄俊彭勇
Owner NANJING UNIV OF SCI & TECH
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