A method and system for arc additive manufacturing with self-adaptive parameter adjustment

Abstract

The invention relates to an arc additive manufacturing method and system for self-adaptive parameter adjustment. The method includes: obtaining a three-dimensional model; performing layered slice processing to obtain a layered path, forming a preliminary path point set, and judging whether to perform layered path adjustment. If so, simplify or subdivide the path points based on the preliminary path point set; plan the welding path to obtain the adjusted path result; set the welding parameters according to the path result, and select the welding process; simulate and verify the welding process to judge whether to continue to adjust Path results; generate corresponding welding instructions according to the verified path results, and add welding platform preheating instructions before the welding instructions, get the execution instruction set, and send it to the welding machine and robot; respond to the received execution instruction set to realize material addition manufacture. The invention can effectively improve efficiency and precision, and greatly reduce the difficulty of arc additive manufacturing.

Description

technical field [0001] The invention relates to the technical field of metal additive manufacturing, in particular to an arc additive manufacturing method and system for adaptive parameter adjustment. Background technique [0002] At present, in the field of arc additive manufacturing, there are few additive manufacturing technologies applied to robots and welding machines, and the generated robot motion paths cannot be directly used in actual manufacturing, nor can they be simulated. At the same time, in actual production, engineers often need to use the teaching pendant to program. For complex environments, teaching pendant programming is more troublesome. At this time, offline programming technology is needed to plan the path. Therefore, the existing additive manufacturing technology based on welding machines often has the following disadvantages: the manual design path has high requirements for engineers, and the design plan takes a long time; it cannot be simulated onli...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of arc additive manufacturing, there are few additive manufacturing technologies that are applied to robots and based on welding machines, and the generated robot motion paths cannot be directly used in actual manufacturing, nor can they be simulated

At the same time, in actual production, engineers often need to use the teaching pendant to program. For complex environments, teaching pendant programming is more troublesome. At this time, offline programming technology is needed to plan the path.

Therefore, the existing additive manufacturing technology based on welding machines often has the following disadvantages: the manual design path has high requirements for engineers, and the design plan takes a long time; it cannot be simulated online, which is easy to cause waste of materials, and the manufacturing cycle is long; the 3D model path Many, it is difficult to start and close the arc and change the process; the memory of the robot is limited, and the executable file takes up too much storage space, etc.

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