Comparison of Different Parameters to Evaluate Delamination in Edge Trimming of Basalt Fiber Reinforced Plastics (BFRP)

Abstract

Delamination is one of the main problems that occur when machining fiber-reinforced composite materials. In this work, Types I and II of delamination are studied separately in edge trimming of basalt fiber reinforced plastic (BFRP). For this purpose, one-dimensional and area delamination parameters are defined. One-dimensional parameters (Wa and Wb) allow to know average fibers length while the analysis of area delamination parameters (Sd) allow to evaluate delamination density. To study delamination, different tests are carried out modifying cutting parameters (cutting speed, feed per tooth and depth of cut) and material characteristics (fiber volume fraction and fiber orientation). Laminates with a lower fiber volume fraction do not present delamination. Attending to one-dimensional parameters it can be concluded that Type II delamination is more important than Type I and that a high depth of cut generates higher values of delamination parameters. An analysis of variance (ANOVA) is performed to study area parameters. Although delamination has a random nature, for each depth of cut, more influence variables in area delamination are firstly, feed per tooth and secondly, cutting speed.

Special Issue of the Manufacturing Engineering Society 2020 (SIMES-2020)

“…Regarding the specific contributions of the Special Issue in the journal Materials, 17 contributions about cutting-edge advances in different fields of the manufacturing engineering have been collected. In particular, these concern advances and innovations in manufacturing processes [6][7][8][9][10][11]; additive manufacturing and 3D printing [12,13]; sustainable and green manufacturing [14,15]; metrology and quality in manufacturing [16,17]; manufacturing of new materials [18]; manufacturing systems: machines, equipment and tooling [19]; robotics, mechatronics and manufacturing automation [20]; Industry 4.0 [21]; design, modeling and simulation in manufacturing engineering [22]. Figure 2 shows the main topics and their percentages in this journal.…”

“…Concretely, within the topic "Advances and innovations in manufacturing processes", the works are focused on manufacturing processes. Mainly, machining [6][7][8], forming [9], joining [10] and electroplating [11]. In machining, Kubo et al [6] use bio-inspired DNA-based computing for determining surface topography of a dressed grinding wheel; Wood et al [7] analyze the machinability of inconel718 alloy with a porous microstructure produced by laser melting powder bed fusion at higher energy densities; and Navarro-Mas et al [8] compare different parameters to evaluate the delamination produces in the edge trimming of basalt fiber reinforced plastics.…”

“…Mainly, machining [6][7][8], forming [9], joining [10] and electroplating [11]. In machining, Kubo et al [6] use bio-inspired DNA-based computing for determining surface topography of a dressed grinding wheel; Wood et al [7] analyze the machinability of inconel718 alloy with a porous microstructure produced by laser melting powder bed fusion at higher energy densities; and Navarro-Mas et al [8] compare different parameters to evaluate the delamination produces in the edge trimming of basalt fiber reinforced plastics. In forming, Merayo et al [9], in order to characterize the plastic behavior of aluminum alloys, predict the mechanical Among all of them, the topic "Advances and innovations in manufacturing processes" stands out for the number of contributions it has had in this Special Issue (representing 35% of all of them), followed by the topics "Additive manufacturing and 3D printing", "Sustainable and green manufacturing" and "Metrology and quality in manufacturing" (with a 12% each).…”

Análisis experimental del fresado de materiales compuestos reforzados con fibra de basalto

“…De los trabajos que estudian el delaminado, destacan los de Hintze W. et al [72,75,78,88,[92][93]. En sus trabajos no se aborda la influencia de las condiciones de corte, pero sí otros parámetros para intentar explicar cómo se inicia y propaga el delaminado, así como los tipos de delaminado observados y la longitud de las fibras delaminadas.…”

“…Hay experimentos donde aparece además un delaminado ligero en las mechas de urdimbre intermedias donde los hilos pasan por debajo de la trama (Figura 4.30 (b)), y experimentos más desfavorables, donde aparece un delaminado abundante en ambas mechas, tanto en las que pasan por encima, como por debajo de la trama (Figura 4.30 (c)). Por tanto, para esta orientación de tejido, se han estudiado por separado las mechas de tejido por encima y/o por debajo de la trama [78].…”