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Organization of reverse engineering using modern calculation methods in the process of reproducing a gears

Pacana Andrzej, Pacana Jacek, Straka Martin, Woźny Artur

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

2023

z. 170

371--382

Purpose: The main purpose of this article is to present modern possibilities for the reproduction of a machine element. If there are no replacements for the damaged part, and there is no technical documentation, then the only options is to use reverse engineering (RE) methods to reproduce it. Design/methodology/approach: On the example of a damaged gear, the process of measuring the wheel and manufacturing a physical model using 3D printing. An additional step has been added to the classic reverse engineering process to modify the model to improve its strength. Findings: Strength analysis was carried out in the Abaqus program using the finite element method (FEM). Based on the results obtained, it was proposed to change the tooth profile of the gear, which will improve its durability. Research limitations/implications: An extension of the proposed scheme may be a modification of the production process in order to implement the reverse engineering method to the serial production of machine elements. Practical implications: The use of a modified reverse engineering (RE) process will not only allow the components to be reproduced but will also allow extended uptime of the components, and this will reduce production costs. Originality/value: The proposed new reverse engineering process can be successfully used to reconstruct machine components with even very complex shapes. The digital model obtained as a result of scanning has been used to improve the geometry of the toothed rim, but it can be successfully used for other analyses, research, or calculations.

Koncepcja systemu podparcia wózka dla osób z niepełnosprawnością ruchową – prezentacja rozwiązania z zastosowaniem druku 3D

Fudali P., Miechowicz S., Kudasik T.

Mechanik

2017

R. 90, nr 5-6

450--452

Omówiono nowatorską koncepcję siedziska wózka dla osób z niepełnosprawnościami. Rozwiązanie przedstawiono w postaci modelu CAD i modelu rzeczywistego. Dodatkowo pokazano możliwości konsolidacji elektronicznych układów wykonawczych w celu wizualizacji koncepcji i zasady działania.

An innovative concept of the seat design in the wheelchair for persons with disabilities is discussed. The solution is presented as a CAD model as well as in the form of a real model. Additionally, prospects of consolidation of electronic actuators are shown providing for visualization of concepts and principles of operation.

Increasing of rapid prototyping performance by 3D printing technologies

Matsi B., Otto T., Roosimölder L.

Journal of Machine Engineering

2009

Vol. 9, No. 1

121--129

Rapid prototyping (RP) is being recognised as a significant technology for future product development. One of the most effective RP technologies is 3D printing. A three dimensional object is created by layering and connecting successive cross sections of material. Therefore this new RP methodology is generally faster, more affordable and easier to use than any other additive fabrication technologies. This paper analyses performance of RP methods and compares these based on use-cases. Prototypes of casing type details have been created using different RP technologies. Productivity of product development process and 3D printing has been investigated. A problem in differences between physical prototypes compared to existing computer model (digital prototype) can be diminished by using comparative pre-testing. Case studies of increasing innovation capacity in development of casing type details have been analysed. In addition, suggestions for increasing innovation capacity and performance of rapid manufacturing have been made.