Término solicitado: SANCHEZ EGEA , A. J./(22)
2 Registro/s encontrado/s en CAT+NORMA
| Tipo de Docum.: | artículo |
| Título: | On the cutting performance of segmented diamond blades when dry-cutting concrete |
| Autor: | Sánchez Egea , A. J.; Martynenko, V.; Martínez Krahmer, D.; López de Lacalle, L. N.; Benítez, A.; Genovese, G. |
| Título Ser./Col.: | Materials, 11(2) |
| Autor Inst. Ser./Col.: | Multidisciplinary Digital Publishing Institute. MDPI. Basilea. Suiza |
| Idioma: | eng |
| Datos de Edición: | s.l. MDPI. 2018. |
| Pág./Vol.: | 12p. |
| Unidad técnica: | INTI-Mecánica; INTI-Construcciones. |
| Descriptores: | Corte; Diamante; Hormigones; Topografía; Desgaste; Ensayos de resistencia |
| Resumen: | The objective of the present study is to analyze and compare the cutting performance of segmented diamond blades when dry-cutting concrete. A cutting criteria is proposed to characterize the wear of the blades by measuring the variation of the external diameter and the weight loss of the blade. The results exhibit the cutting blade SB-A, which has twice the density of diamonds and large contact area, exhibits less wear even though the material removal rate is higher compared with the other two cutting blades. Additionally, the surface topography of the different blades is evaluated to examine the impact of wear depending on the surface profile and the distribution of the diamonds in the blade’s matrix. Large number of diamonds pull-out are found in blades type SB-C, which additionally shows the worst wear resistant capability. As a conclusion, the cutting efficiency of the blade is found to be related to the density of embedded diamonds and the type of the surface profile of the cutting blade after reaching the stop criteria. |
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Trabajo de INTI |
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URL: |
http://www.mdpi.com/1996-1944/11/2/264 |
| Tipo de Docum.: | artículo |
| Título: | Short-cut method to assess a gross available energy in a medium-load screw friction press |
| Autor: | Sánchez Egea , A. J.; Deferrari, N.; Abate, Germán; Martínez Krahmer, D.; López de Lacalle, L. N. |
| Título Ser./Col.: | Metals, 8(3) |
| Autor Inst. Ser./Col.: | Multidisciplinary Digital Publishing Institute. MDPI. Basilea. Suiza |
| Idioma: | eng |
| Datos de Edición: | s.l. MDPI. 2018. |
| Pág./Vol.: | 12p. |
| Unidad técnica: | INTI-Mecánica. |
| Descriptores: | Energía; Fricción; Compresión; Prensas; Forja; Prensado; Cargas |
| Resumen: | The present study proposed a rapid method, based on a previous universal compression tests, to estimate the required load capacity to cold forge different specimen quantity in a screw press. Accordingly, experimental and theoretical approach are performed to check new adjustable drive motor of the modified forging machine to achieve a gross available energy to deform the specimens preventing damage of the forging machine. During the forging experiments, two screw friction presses (as-received and modified) are used to validate the theoretical approach. The modified press exhibits an increase of 51% of gross energy and 11% of maximum load capacity compare to the as-received press. This method is used to improve the effective of the forging process avoiding excessive loads that could promote machine failure. Therefore, a low-cost and easy to implement methodology is proposed to determine the energy and load capacity of a screw friction press to forge different specimen quantities with symmetry pattern configurations. |
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Trabajo de INTI |
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URL: |
http://www.mdpi.com/2075-4701/8/3/173 |
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