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提高自由曲面多轴铣削的精度。

Increasing the Accuracy of Free-Form Surface Multiaxis Milling.

作者信息

Sadílek Marek, Poruba Zdeněk, Čepová Lenka, Šajgalík Michal

机构信息

Department of Machining and Assembly, Faculty of Mechanical Engineering, VŠB-Technical University of Ostrava, 708 33 Ostrava, Czech Republic.

Department of Applied Mechanics, Faculty of Mechanical Engineering, VŠB-Technical University of Ostrava, 708 33 Ostrava, Czech Republic.

出版信息

Materials (Basel). 2020 Dec 23;14(1):25. doi: 10.3390/ma14010025.

DOI:10.3390/ma14010025
PMID:33374664
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7793485/
Abstract

This contribution deals with the accuracy of machining during free-form surface milling using various technologies. The contribution analyzes the accuracy and surface roughness of machined experimental samples using 3-axis, 3 + 2-axis, and 5-axis milling. Experimentation is focusing on the tool axis inclination angle-it is the position of the tool axis relative to the workpiece. When comparing machining accuracy during 3-axis, 3 + 2-axis, and 5-axis milling the highest accuracy (deviation ranging from 0 to 17 μm) was achieved with 5-axis simultaneous milling (inclination angles β = 10 to 15°, β = 10 to 15°). This contribution is also enriched by comparing a CAD (Computer Aided Design) model with the prediction of milled surface errors in the CAM (Computer Aided Manufacturing) system. This allows us to determine the size of the deviations of the calculated surfaces before the machining process. This prediction is analyzed with real measured deviations on a shaped surface-using optical three-dimensional microscope Alicona Infinite Focus G5.

摘要

本文探讨了使用各种技术进行自由曲面铣削时的加工精度。文章分析了采用三轴、3 + 2轴和五轴铣削加工的实验样本的精度和表面粗糙度。实验重点关注刀具轴倾斜角度——即刀具轴相对于工件的位置。在比较三轴、3 + 2轴和五轴铣削的加工精度时，五轴同步铣削（倾斜角度β = 10至15°，β = 10至15°）实现了最高精度（偏差范围为0至17μm）。通过将CAD（计算机辅助设计）模型与CAM（计算机辅助制造）系统中铣削表面误差的预测进行比较，本文内容得到了进一步充实。这使我们能够在加工过程之前确定计算表面的偏差大小。使用光学三维显微镜Alicona Infinite Focus G5对成型表面上的实际测量偏差进行分析，以此对该预测进行分析。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d19/7793485/6baad1b0ee1f/materials-14-00025-g020.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d19/7793485/4bf4ffe93a26/materials-14-00025-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d19/7793485/5ee370f133b5/materials-14-00025-g017.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d19/7793485/6baad1b0ee1f/materials-14-00025-g020.jpg

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