High-quality CAD model as a prerequisite for digitalisation of CNC machining process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00384753" target="_blank" >RIV/68407700:21220/25:00384753 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.gmod.2025.101283" target="_blank" >https://doi.org/10.1016/j.gmod.2025.101283</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.gmod.2025.101283" target="_blank" >10.1016/j.gmod.2025.101283</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-quality CAD model as a prerequisite for digitalisation of CNC machining process

Popis výsledku v původním jazyce

Digitalisation and automation are currently being introduced to CNC machining to increase efficiency and reduce production costs. This trend can result in reduced quality of the final product, especially in CNC machining of molds with complex shapes, where additional manual interventions such as grinding are often necessary. The research in this paper focuses on optimisation in the pre-production phase of the CAD model design. It is shown that the geometric properties of the CAD model, especially the quality of its continuity, significantly influence the resulting accuracy and quality of the machined surface. Increasing the CAD model continuity up to 3rd order automatically smooths the toolpath and improves the accuracy of the machined surface, and therefore the need for subsequent optimisations in the technological phase is also reduced. To investigate the effect of CAD model continuity on CNC machining accuracy, a new Continuity standard representing the continuity of freeform surfaces from 0th to 3rd order was designed and machined by 3-axis milling without any finishing operation. Based on measurements of the manufactured standard, in this paper it is proven that the increasing continuity of the CAD model increases the accuracy of the machining and, at the same time, eliminates the need for additional manual adjustments.

Název v anglickém jazyce

High-quality CAD model as a prerequisite for digitalisation of CNC machining process

Popis výsledku anglicky

Digitalisation and automation are currently being introduced to CNC machining to increase efficiency and reduce production costs. This trend can result in reduced quality of the final product, especially in CNC machining of molds with complex shapes, where additional manual interventions such as grinding are often necessary. The research in this paper focuses on optimisation in the pre-production phase of the CAD model design. It is shown that the geometric properties of the CAD model, especially the quality of its continuity, significantly influence the resulting accuracy and quality of the machined surface. Increasing the CAD model continuity up to 3rd order automatically smooths the toolpath and improves the accuracy of the machined surface, and therefore the need for subsequent optimisations in the technological phase is also reduced. To investigate the effect of CAD model continuity on CNC machining accuracy, a new Continuity standard representing the continuity of freeform surfaces from 0th to 3rd order was designed and machined by 3-axis milling without any finishing operation. Based on measurements of the manufactured standard, in this paper it is proven that the increasing continuity of the CAD model increases the accuracy of the machining and, at the same time, eliminates the need for additional manual adjustments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/EF16_026%2F0008404" target="_blank" >EF16_026/0008404: Strojírenská výrobní technika a přesné strojírenství</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Graphical Models

ISSN

1524-0703

e-ISSN

1524-0711

Svazek periodika

141

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

001558833500001

EID výsledku v databázi Scopus

2-s2.0-105012870726