基于混合几何方法的CAD模型工艺感知厚度分析

中文摘要 AI 辅助

厚度是面向制造的设计（DFM）中的一个关键几何属性，然而在CAD环境中对其计算分析在很大程度上仍与工艺无关。现有方法要么依赖内切球法，要么依赖射线投射法，每种方法都有局限性，使其难以作为跨制造工艺的通用解决方案。本文提出了一种面向注塑和铣削零件的工艺感知厚度分析系统，在该系统中，根据每种工艺相关的DFM规则来选择几何方法并解释其输出。对于注塑，基于球的方法检测最大厚度违规和壁厚不均匀性，并将零件分割为不同的厚度区域。对于铣削，射线投射识别厚度不足的区域，并检测易发生偏转或失效的薄特征。在代表性零件上的验证表明，这种混合方法能揭示特定工艺的可制造性问题，为设计人员在设计周期早期提供可操作的几何反馈。

英文摘要

Thickness is a critical geometric attribute in Design for Manufacturability (DFM), yet its computational analysis in CAD environments remains largely process-agnostic. Existing approaches rely either on inscribed-sphere or ray-casting methods, each carrying limitations that make them poorly suited as universal solutions across manufacturing processes. This paper presents a process-aware thickness analysis system for parts intended for molding and milling, where the geometric method is selected and its outputs interpreted according to the DFM rules meaningful to each process. For molding, the sphere-based method detects maximum thickness violations and wall non-uniformity, and segments parts into distinct thickness zones. For milling, ray-casting identifies regions of insufficient thickness and detects thin features prone to deflection or failure. Validation on representative parts demonstrates that this hybrid approach surfaces process-specific manufacturability issues, offering designers actionable geometric feedback early in the design cycle.

发表机构

• KU Leuven（荷语鲁汶大学）

机构由 AI 辅助整理，请以论文原文为准。