The theory of constraints applied in a manufacture CAD-CAM system in the industry Metalworking-plastic
DOI:
https://doi.org/10.29019/enfoqueute.v8n3.167Keywords:
theory of constrains, polymer, computerized numerical control, CAD, CAMAbstract
In the following project, the theory of constraints was applied in order to implement a manufacture CAD-CAM system into the metal mechanic industry processes of polymers injection and blown of polymers. The research showed that the manufacture of the mold with the engraving took 223,17 hours. In the workflow for the manufacture of the mold, a restriction was found in the outsource service of CNC. It took 120 hours of the whole process and represent the 51,47 % the total time of tooling manufacturing. There is also a constraint found in the design time. It was 60 hours that corresponds to 26,88 % of the overall time. In order to reduce the time, a modern system of design in 3D and CAM was established to improve the model process of design and manufacture. A simulation by computational resource was applied to the plastic. The design was changed from 2D to 3D. The implementation was focused in the design. A software was installed to improve the speed of modeling methods with reliable information. In the manufacture of molds, a new CNC machine was acquired with three simultaneous axes to eliminate the outsource service. By acquiring the design system, the working time was diminished in 79% and regarding to the CNC process, the working time was improved in 88%.
Downloads
References
Bodini G. (1992). Moldes y Máquinas de Inyección para la Transformación de Plásticos. México, McGraw-Hill.
Candal M. (2005). Integración CAD/CAE/CAM-PR en la Optimización del Diseño de Productos Plásticos. Ciencia e Ingeniería.
Cuatrecasas L. (2009). Diseño Avanzado de Procesos y Plantas de Producción Flexible, Barcelona, Bresca.
Fleitman J. (2007). Evaluación Integral para Implantar Modelos de Calidad. México, Pax México.
Goldratt E. (2005). La Meta, Madrid, Edigrafos.
Gómez S. (2010). SolidWorks. México. Alfaomega.
Groover M. (2008). Automation, Production Systems and Computer-Integrated Manufacturing. New Jersey. Prentice Hall.
Manual del Mecánico Industrial, Máquinas y Control Numérico. (2000). Madrid, Cultural.
Heizer J. (2010). Dirección de la Producción y Operaciones. Madrid. Pearson Education.
Juiña L. (2015). Implementación de un proceso de Sistema de Manufactura CAD-CAM en la sección matricería de la empresa COBIPLAST. MSc. tesis, Facultad de Ingeniería Química y Agroindustria, EPN., Quito, Ecuador.
Kalpakjian S. (2008). Manufactura, Ingeniería y Tecnología. México. Pearson.
Krajewski L. (2008). Administración de Operaciones. México, Pearson.
Niebel B. (2004). Ingeniería Industrial, Métodos, Estándares y Diseño del Trabajo. México. Alfaomega.
Richardson T. (2003). Industria del Plástico. Madrid. Paraninfo.
Sánchez S. (2001). Moldeo por inyección de termoplásticos. México, Limusa.
Tompkins J. (2011). Planeación de Instalaciones. México, Cengage Learning.
Serrano Rodriguez, Javier. 2008. Matemáticas Financieras . Bogota : Alfaomega, 2008.
Published
How to Cite
Issue
Section
License
The authors retain all copyrights ©.
- The authors retain their trademark and patent rights, as well as rights to any process or procedure described in the article.
- The authors retain the right to share, copy, distribute, perform, and publicly communicate the article published in Enfoque UTE (for example, post it in an institutional repository or publish it in a book), provided that acknowledgment of its initial publication in Enfoque UTE is given.
- The authors retain the right to publish their work at a later date, to use the article or any part of it (for example, a compilation of their work, lecture notes, a thesis, or for a book), provided that they indicate the source of publication (authors of the work, journal, volume, issue, and date).
