High-quality CAD model as a prerequisite for digitalisation of CNC machining process
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
High-quality CAD model as a prerequisite for digitalisation of CNC machining process
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EF16_026%2F0008404" target="_blank" >EF16_026/0008404: Machine Tools and Precision Engineering</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Graphical Models
ISSN
1524-0703
e-ISSN
1524-0711
Volume of the periodical
141
Issue of the periodical within the volume
September
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
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UT code for WoS article
001558833500001
EID of the result in the Scopus database
2-s2.0-105012870726