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Master's Dissertation
DOI
10.11606/D.18.2009.tde-23052010-195043
Document
Author
Full name
José Matheus Sanches
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Duduch, Jaime Gilberto (President)
Burato, Carlos Umberto
Wrege, Paulo Alberto Silveira
Title in Portuguese
Desenvolvimento de uma fresadora CNC de baixo custo para fins didáticos
Keywords in Portuguese
Análise de valor
Desenvolvimento
Didáticos
Fresadora
Projeto
Abstract in Portuguese
Para o ensino em cursos relacionados à mecânica são fundamentais aulas teóricas e práticas de programação em máquinas CNC. Um grande incentivo para o aluno é ver sua programação transformada em uma peça que possa ser manuseada. Porém, dado o seu alto investimento, muitas escolas técnicas, de tecnologia e engenharia não disponibilizam máquinas CNC para os alunos. Desta forma, é apresentado neste trabalho o desenvolvimento de uma fresadora CNC de baixo custo. Com o emprego do método de combinação de variantes e o método de análise morfológica, os elementos mecânicos para o projeto da fresadora foram selecionados. Assim, foi possível desenvolver o conceito desse equipamento e fazer a estimativa de seu custo. Com a aplicação de análise de valor, utilizando as técnicas FAST, de Mudge e COMPARE, foi possível avaliar pontos críticos que acarretam em custos desnecessários. Com isso, pode-se avaliar como trabalhar com a transferência de recursos.
Title in English
Development of a low-cost CNC milling machine for teaching purposes
Keywords in English
Design
Development
Milling machine
Teaching purposes
Value analysis
Abstract in English
Courses related to mechanical sciences must offer to their students theoretical and practical lectures on CNC machine programming. The possibility of viewing the transformation of a programme in to a manageable part constitutes an incentive to the students. A CNC machine is an essential piece of equipment for such practical classes. A number of schools cannot have a CNC machine because of its high cost. Thus, in the present work, the development of a low-cost CNC milling machine as an alternative for academic purposes is presented. For the selection of the mechanical elements of the CNC machine, a combination of variants method and morphological analysis was used. Then, the design concept was carried out and its cost estimated. Using the value analysis through the FAST, Mudge and COMPARE techniques, the critical points that could increase unnecessary machine cost were examined. It was possible to assess how to work with the resources transference.
 
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Sanches_J_Matheus.pdf (2.79 Mbytes)
Publishing Date
2010-06-09
 
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