System and method for removing support structures in subtractive machining

By generating and validating subtractive toolpaths in a computer-aided manufacturing environment and using CNC machine cutting of support structures, the problem of difficult removal of support structures in additive manufacturing is solved, thereby improving production efficiency and part quality.

CN114871447BActive Publication Date: 2026-07-24HEXAGON INNOVATION CENTER LTD
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Patent Information

Application Number
CN202210120400.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-02-05
Filing Date
2022-02-07
Publication Date
2026-07-24
Estimated Expiration
2042-02-07

AI Technical Summary

Technical Problem

In existing technologies, the support structures generated during additive manufacturing are difficult to remove efficiently and accurately in subtractive manufacturing processes, resulting in low production efficiency and poor surface quality of parts.

Method used

By receiving additive manufacturing process data in a computer-aided manufacturing environment, generating and validating subtractive toolpaths, and using a CNC machine to cut along the contact line between the support structure and the part, the process of removing the support structure is optimized.

Benefits of technology

It enables efficient and precise removal of the support structure, improves part production efficiency and surface quality, and reduces additional process steps and material waste.

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Abstract

The present application relates to systems and methods for removing support structures in subtractive machining. The systems and methods include an additive component; a subtractive component; and a processor configured to: receive a contact line associated with a support structure from the additive component; receive a geometry associated with an orientation from the additive component; receive data associated with a tool from the subtractive component; generate a subtractive tool path based on the received contact line, the received data associated with the tool, and the received geometry; transmit the generated subtractive tool path to an analysis component for tool path validation; and validate the tool path by the analysis component based on output from a simulation component to determine whether the subtractive component successfully calculated removal of the support structure from the part.
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Citation Information

Patent Citations

  • System And Method For Planning Support Removal In Hybrid Manufacturing With The Aid Of A Digital Computer

    US20190204807A1