Self-adaptive parameter-adjusting electric arc additive manufacturing method and system

Abstract

The invention relates to a self-adaptive parameter-adjusting electric arc additive manufacturing method and system. The method comprises the steps: obtaining a three-dimensional model; performing hierarchical slicing processing to obtain hierarchical paths, forming a preliminary path point set, judging whether to execute hierarchical path adjustment, and if so, performing path point simplification or subdivision based on the preliminary path point set; conducting welding path planning to obtain an adjusted path result; setting welding parameters according to the path result, and selecting a welding process; conducting simulation verification on the welding process, and judging whether the path result continues to be adjusted or not; generating a corresponding welding instruction according to the verified path result, adding a welding platform preheating instruction before the welding instruction, obtaining an execution instruction set and sending to a welding machine and a robot; and responding to the received execution instruction set, and implementing additive manufacturing. The efficiency and precision can be effectively improved, and the difficulty of electric arc additive manufacturing is greatly reduced.

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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