Horacio Ahuett - Academia.edu (original) (raw)

Papers by Horacio Ahuett

Reconfigurable machine tools (RMT) have emerged as a potential solution to meet the demand for ra... more Reconfigurable machine tools (RMT) have emerged as a potential solution to meet the demand for rapid adaptation in the next generation manufacturing systems. While a significant amount of research in RMT design is available, formal design methodologies are still under development. In previous work, a modularity framework technique for the development of RMT modules was outlined. The technique focused on

Smart Structures and Materials 2006: Smart Structures and Integrated Systems, 2006

Compliant mechanisms have a wide range of application in microassembly, micromanipulation and mic... more Compliant mechanisms have a wide range of application in microassembly, micromanipulation and microsurgery. This article presents a low cost Flexure-Stage actuated by two SMA-wires that produces displacement in one direction in a range from 0 to 10 mum. The Flexure-Stage acts as a mechanical transform by reducing and changing the direction of the SMA actuator output displacement. The Flexure-Stage system

IFIP TC5/WG5.5 Publications, 2003

The era of information age and globalization has created a situation of increased international c... more The era of information age and globalization has created a situation of increased international competition. In this scenario the tasks of design and manufacturing are executed by different facilities usually at different geographically locations and the ...

IFIP TC5/WG5.3 Publications, 2004

Nowadays global product development tasks are executed by different facilities usually at differe... more Nowadays global product development tasks are executed by different facilities usually at different geographically location, where design and manufacturing teams must work remotely. This situation requires three major issues to be tackled: (1) implementation of a collaborative Integrated Product Development process among the different companies participating in the Product Life Cycle activities; (2) establishment of environments that foster the coordination

Virtual enterprises and …, 2004

... 81-90. Mejía, Aca, García and Molina, “E-Services for Virtual Enterprise Brokerage”, in Knowl... more ... 81-90. Mejía, Aca, García and Molina, “E-Services for Virtual Enterprise Brokerage”, in Knowledge and Technology Integration in Production and Services”, V. Marik, L. Camarinha-Matos, H. Afsarmanesh (Eds.), Kluwer Academic Publishers, 2002, pp. 141 – 148. ...

... Diego Cárdenas1, Alejandro A. Escárpita2, Hugo Elizalde2, Juan José Aguirre1, Horacio Ahuett2... more ... Diego Cárdenas1, Alejandro A. Escárpita2, Hugo Elizalde2, Juan José Aguirre1, Horacio Ahuett2, Piergiovanni Marzocca3 and Oliver Probst1 1 Physics Department, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2015 Sur, Col. ...

… Design, Visualization, and …, 2006

... Development implies the translation of the design process into a computer based language that... more ... Development implies the translation of the design process into a computer based language that has to be suitable for the Data Acquisition Card (DAC) selected. ... I Implementation of a commer-cial PDM (Product Data Man-agement ... Computer-Aided Design 37 (2005) 1425–1434 ...

1 Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. de Vicent Sos... more 1 Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. de Vicent Sos Baynat s/n. 12071 Castellón, Spain Tel.: +34 964 72 8001 vila@esid.uji.es 2 Instituto Tecnológico y de Estudios Superiores de Monterrey, Av. Eugenio Garza Sada Nº2501 Sur, Monterrey, ...

This work studies the cycle time prediction of high-speed milling for sculptured surfaces with hi... more This work studies the cycle time prediction of high-speed milling for sculptured surfaces with high feed rates. Experiments and predictions were focused on representative surfaces of dies and molds, whose geometric complexity and complexity distribution were modified parametrically. CNC programs for machining these surfaces were executed in a HURON KX-10 machining center with a SIEMENS 840D controller, with different levels of programmed feed rate. Discrepancies between programmed and actual feed rates were evaluated. A mechanistic approach for cycle time evaluation in high-speed milling of sculptured surfaces is proposed. The mechanistic model construction is based on: (a) the frequency distribution (histogram) of linear interpolation path lengths in the CNC program and (b) a characterization of the machine tool for brisk (large changes in tool path direction) and smooth movements (small changes in tool path direction). Two case studies were used to demonstrate the effectiveness of the proposed approach (a set of representative sculptured surfaces with spherical caps and a forging die surface). Comparing the actual cycle time versus ideal cycle time under programmed feed rates up to 16 m/min, discrepancies of 300-800% were found. The proposed model is capable of predicting cycle time with a maximum error of 5-22%.

Emerging solutions for future …, 2005

... Ricardo Mejia', Joaquin Aca&... more ... Ricardo Mejia', Joaquin Aca', Horacio Ahuett2, Arturo Molina', 'Centro de Sistemas integrados de Manufactura - ITESM ' ~ entro de Disetio e ... external applications using standards and web protocols (CONNECT): in ac ollaborative e ngineering e nvironment there isa need toc ...

International Journal of Automotive Technology, 2014

ABSTRACT This paper proposes a procedure to improve the design of an automobile crashworthiness u... more ABSTRACT This paper proposes a procedure to improve the design of an automobile crashworthiness using the deceleration pulse in a simplified form as a design variable. A complete vehicle in a full frontal crash was simulated to find its deceleration pulse by finite element method. Based on this deceleration pulse, sled tests were performed, also in a virtual environment. Comparisons between the real deceleration pulse and a simplified pulse were made based on the HIC15 produced. The simplified pulse is developed by dividing the pulse in three phases, each with a constant level of deceleration. Simulations were made to minimize the HIC15 changing parameters in the restraint system and in the deceleration pulse. An expression was found to relate HIC15 and the first phase of the deceleration pulse. A design case using this expression is presented. The benefits of using the pulse as a design variable along with the restraint system are accounted.

Reconfigurable machine tools (RMT) have emerged as a potential solution to meet the demand for ra... more Reconfigurable machine tools (RMT) have emerged as a potential solution to meet the demand for rapid adaptation in the next generation manufacturing systems. While a significant amount of research in RMT design is available, formal design methodologies are still under development. In previous work, a modularity framework technique for the development of RMT modules was outlined. The technique focused on

Smart Structures and Materials 2006: Smart Structures and Integrated Systems, 2006

Compliant mechanisms have a wide range of application in microassembly, micromanipulation and mic... more Compliant mechanisms have a wide range of application in microassembly, micromanipulation and microsurgery. This article presents a low cost Flexure-Stage actuated by two SMA-wires that produces displacement in one direction in a range from 0 to 10 mum. The Flexure-Stage acts as a mechanical transform by reducing and changing the direction of the SMA actuator output displacement. The Flexure-Stage system

IFIP TC5/WG5.5 Publications, 2003

The era of information age and globalization has created a situation of increased international c... more The era of information age and globalization has created a situation of increased international competition. In this scenario the tasks of design and manufacturing are executed by different facilities usually at different geographically locations and the ...

IFIP TC5/WG5.3 Publications, 2004

Nowadays global product development tasks are executed by different facilities usually at differe... more Nowadays global product development tasks are executed by different facilities usually at different geographically location, where design and manufacturing teams must work remotely. This situation requires three major issues to be tackled: (1) implementation of a collaborative Integrated Product Development process among the different companies participating in the Product Life Cycle activities; (2) establishment of environments that foster the coordination

Virtual enterprises and …, 2004

... 81-90. Mejía, Aca, García and Molina, “E-Services for Virtual Enterprise Brokerage”, in Knowl... more ... 81-90. Mejía, Aca, García and Molina, “E-Services for Virtual Enterprise Brokerage”, in Knowledge and Technology Integration in Production and Services”, V. Marik, L. Camarinha-Matos, H. Afsarmanesh (Eds.), Kluwer Academic Publishers, 2002, pp. 141 – 148. ...

... Diego Cárdenas1, Alejandro A. Escárpita2, Hugo Elizalde2, Juan José Aguirre1, Horacio Ahuett2... more ... Diego Cárdenas1, Alejandro A. Escárpita2, Hugo Elizalde2, Juan José Aguirre1, Horacio Ahuett2, Piergiovanni Marzocca3 and Oliver Probst1 1 Physics Department, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2015 Sur, Col. ...

… Design, Visualization, and …, 2006

... Development implies the translation of the design process into a computer based language that... more ... Development implies the translation of the design process into a computer based language that has to be suitable for the Data Acquisition Card (DAC) selected. ... I Implementation of a commer-cial PDM (Product Data Man-agement ... Computer-Aided Design 37 (2005) 1425–1434 ...

1 Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. de Vicent Sos... more 1 Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. de Vicent Sos Baynat s/n. 12071 Castellón, Spain Tel.: +34 964 72 8001 vila@esid.uji.es 2 Instituto Tecnológico y de Estudios Superiores de Monterrey, Av. Eugenio Garza Sada Nº2501 Sur, Monterrey, ...

This work studies the cycle time prediction of high-speed milling for sculptured surfaces with hi... more This work studies the cycle time prediction of high-speed milling for sculptured surfaces with high feed rates. Experiments and predictions were focused on representative surfaces of dies and molds, whose geometric complexity and complexity distribution were modified parametrically. CNC programs for machining these surfaces were executed in a HURON KX-10 machining center with a SIEMENS 840D controller, with different levels of programmed feed rate. Discrepancies between programmed and actual feed rates were evaluated. A mechanistic approach for cycle time evaluation in high-speed milling of sculptured surfaces is proposed. The mechanistic model construction is based on: (a) the frequency distribution (histogram) of linear interpolation path lengths in the CNC program and (b) a characterization of the machine tool for brisk (large changes in tool path direction) and smooth movements (small changes in tool path direction). Two case studies were used to demonstrate the effectiveness of the proposed approach (a set of representative sculptured surfaces with spherical caps and a forging die surface). Comparing the actual cycle time versus ideal cycle time under programmed feed rates up to 16 m/min, discrepancies of 300-800% were found. The proposed model is capable of predicting cycle time with a maximum error of 5-22%.

Emerging solutions for future …, 2005

... Ricardo Mejia', Joaquin Aca&... more ... Ricardo Mejia', Joaquin Aca', Horacio Ahuett2, Arturo Molina', 'Centro de Sistemas integrados de Manufactura - ITESM ' ~ entro de Disetio e ... external applications using standards and web protocols (CONNECT): in ac ollaborative e ngineering e nvironment there isa need toc ...

International Journal of Automotive Technology, 2014

ABSTRACT This paper proposes a procedure to improve the design of an automobile crashworthiness u... more ABSTRACT This paper proposes a procedure to improve the design of an automobile crashworthiness using the deceleration pulse in a simplified form as a design variable. A complete vehicle in a full frontal crash was simulated to find its deceleration pulse by finite element method. Based on this deceleration pulse, sled tests were performed, also in a virtual environment. Comparisons between the real deceleration pulse and a simplified pulse were made based on the HIC15 produced. The simplified pulse is developed by dividing the pulse in three phases, each with a constant level of deceleration. Simulations were made to minimize the HIC15 changing parameters in the restraint system and in the deceleration pulse. An expression was found to relate HIC15 and the first phase of the deceleration pulse. A design case using this expression is presented. The benefits of using the pulse as a design variable along with the restraint system are accounted.