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Specified weight cutting system for irregular solid material based on 3D scanning

Jiadong He Yafeng Huang Xiao Zang Yajun Zhang
Bulletin of the Polish Academy of Sciences Technical Sciences | 2022 | 70 | 5 | e143108 | DOI: 10.24425/bpasts.2022.143108
Keywords specified weight 3D scanning reverse engineering calculation algorithm
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Abstract

A specified weight-cutting system for irregular solid materials such as rubber is important for industrial engineering. Currently, the workers’ experience is used, which has low accuracy and efficiency. A specified weight cutting system for irregular solid material based on 3D scanning is proposed in this paper, which aims to overcome the inaccuracy and inefficiency of the manual cutting process. Firstly, the surface of the irregular solid material is scanned by a tracking 3D laser scanner, and a triangular mesh file is generated. Secondly, the defects of the 3D model are repaired by reverse engineering, and then the 3D model file of the irregular objects is generated. Finally, the cutting position of the specified weight solid material is calculated by the calculation algorithm in UG software. In short, this research creates a new method for processing data collected by the 3D scanner, by working jointly with multiple devices and software, facilitating the cutting of irregular solid materials with specified weights. Additionally, the system has the advantage of accuracy and efficiency over the experience of workers.
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Authors and Affiliations

Jiadong He
1
ORCID: ORCID
Yafeng Huang
2
Xiao Zang
1
Yajun Zhang
1
  1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
  2. Xi’an Modern Chemistry Research Institute, Xi’an, 710065, China

Using of the Reverse Engineering Method for the Production of Prototype Molds by Patternless Process Technology

E. Krivoš R. Pastirčák P. Lehocký
Archives of Foundry Engineering | 2014 | No 2 | DOI: 10.2478/afe-2014-0048
Keywords Patternless process Reverse engineering 3D scanning Molding compound Bronze casting
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Abstract

The present article deals with the possibility of using the reverse engineering method for the production of prototype molds by Patternless

process technology. Article describes method how to obtain virtual model by using a 3D scanner. Article also explains principle of the

Patternless process technology, which is based on the milling mold cavity using CNC machining equipment. The aim of the research is the

use of advanced technologies that speed up and facilitate the process of production prototype mold. The practical result of the presented

experiment is bronze casting, which serves as a foot rest bracket on historic bike.

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Authors and Affiliations

E. Krivoš
R. Pastirčák
P. Lehocký

Development of a Method for Tool Wear Analysis Using 3D Scanning

Marek Hawryluk Jacek Ziemba Łukasz Dworzak
Metrology and Measurement Systems | 2017 | vol. 24 | No 4 | 739–757 | DOI: 10.1515/mms-2017-0054
Keywords 3D scanning measurements and volumetric analysis of tools wear improve a durability of forging tools
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Abstract

The paper deals with evaluation of a 3D scanning method elaborated by the authors, by applying it to the analysis of the wear of forging tools. The 3D scanning method in the first place consists in the application of scanning to the analysis of changes in geometry of a forging tool by way of comparing the images of a worn tool with a CAD model or an image of a new tool. The method was evaluated in the context of the important measurement problems resulting from the extreme conditions present during the industrial hot forging processes. The method was used to evaluate wear of tools with an increasing wear degree, which made it possible to determine the wear characteristics in a function of the number of produced forgings. The following stage was the use it for a direct control of the quality and geometry changes of forging tools (without their disassembly) by way of a direct measurement of the geometry of periodically collected forgings (indirect method based on forgings). The final part of the study points to the advantages and disadvantages of the elaborated method as well as the potential directions of its further development.

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Authors and Affiliations

Marek Hawryluk
Jacek Ziemba
Łukasz Dworzak

Adaptation of the machine to the new geological conditions – excavation unit redesign and optimization

Jakub Andruszko Przemyslaw Moczko Damian Pietrusiak
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | 3 | e137122 | DOI: 10.24425/bpasts.2021.137122
Keywords dredger rigid-body dynamic 3D scanning discrete element method finite element method
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Abstract

The paper presents and sums up the research and technical aspects of the modernization of the cutting tool of the dredger. Improper adjustment of the cutting elements not adjusted to the characteristics of excavated material is not an uncommon situation, causing versatile geological conditions. Relocation of the machines from one pit to another may result in the significant influence on the excavation process (wear, output, etc.). Common practice is the field try and error approach to obtain desired machine performance. In the paper authors present the approach with aid of cutting-edge technologies. Coupled DEM and kinematic simulations supported by the reverse engineering technologies of laser scanning were the fundamental drivers for final adjustments of the cutting tool at its present operational conditions.
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Authors and Affiliations

Jakub Andruszko
1
Przemyslaw Moczko
1
Damian Pietrusiak
1
  1. Department of Machine Design and Research, Wroclaw University of Science and Technology, ul. Ignacego Lukasiewicza 7/9, 50-371 Wroclaw, Poland

3D scan contour de-featuring for improved measurement accuracy – a case study for a small turbine guide vane component

Marcin Jamontt Paweł Pyrzanowski
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | 5 | e138815 | DOI: 10.24425/bpasts.2021.138815
Keywords 3d scan flatness turbine guide vane small surfaces point clouds contour recognition contour de-featuring
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Abstract

3D scanning measurements are gaining popularity every year. Quick inspections on already captured point clouds are easy to prepare with the use of modern software and machine learning. To achieve repeatability and accuracy, some surface and measurement issues should be considered and resolved before the inspection. Large numbers of manufacturing scans are not intended for manual correction. This article is a case study of a small surface inspection of a turbine guide vane based on 3D scans. Small surface errors cannot be neglected as their incorrect inspection can result in serious faults in the final product. Contour recognition and deletion seem to be a rational method for making a scan inspection with the same level of accuracy as we have now for CMM machines. The main reason why a scan inspection can be difficult is that the CAD source model can be slightly different from the inspected part. Not all details are always included, and small chamfers and blends can be added during the production process, based on manufacturing standards and best practices. This problem does not occur during a CMM (coordinate measuring machine) inspection, but it may occur in a general 3D scanning inspection.
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Authors and Affiliations

Marcin Jamontt
1
Paweł Pyrzanowski
2
ORCID: ORCID
  1. General Electric Company, al Krakowska 110-114, 02-265 Warsaw, Poland
  2. Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, ul. Nowowiejska 24, 00-665 Warsaw, Poland

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