Laser texturing is increasingly gaining attention in the field of metal alloys due to its ability improve surface properties, particularly steel alloys. However, input parameters technology must be carefully controlled achieve desired roughness. Roughness critical activation before further bonding operations, and it often assessed using several such as Ra, Rt, Rz, Rv. This affects properties alloy terms wettability, which has been evaluated by deposition ethylene glycol droplets through a...

Carbon fiber-reinforced thermoplastics (CFRTPs) are materials of great interest in industry. Like thermosets composite materials, they have an excellent weight/mechanical properties ratio and a high degree automation their manufacture recyclability. However, these present difficulties machining due to nature. Their anisotropy, together with low glass transition temperature, can produce important defects machining. A process able machine correctly by producing very small thermal is abrasive...

The novelty of EDM machining as a drilling operation for composite materials means that there is no consensus on the influence parameters optimise final quality. For these reasons, characterisation process unidirectional material has been developed. several cutting related to quality hole obtained. Thus, macrogeometric aspects in terms conicity and diameter microgeometric surface have evaluated. In addition, state wear electrode evaluated by visual inspection, allowing range offer best...

Surface modification by different technologies prior to joining operations or improving tribological properties is a point of great interest. Improving surface activation increasing the roughness metal relationship that becoming more defined. In turn, an increase in wettability evaluating contact angles indicates obtaining high free energy. Technologies such as shot blasting and laser texturing (LST) have generated several scientific studies where they identified influence parameters on...

The use of adhesive layers can improve the properties and reduce defects produced in interfaces. This provides adherence to structure, adapting joining surfaces avoiding spaces between layers. However, presence potentiate caused during drilling. In turn, a loss interface occur machining affecting final structure. work has followed conventional OSD strategy CFRP UNS A92024 aluminium sheet stacking with adhesive. A series dry drilling tests have been developed different cutting conditions new...

This research paper aims to enhance the fatigue resistance of polylactic acid (PLA) in Material Extrusion (ME) by incorporating natural reinforcement, focusing on rotational bending fatigue. The study investigates behavior PLA ME, using various fibers such as cellulose, coffee, and flax potential reinforcements. It explores optimization printing parameters address challenges like warping shrinkage, which can affect dimensional accuracy performance, particularly under conditions analyzed....

The joining of dissimilar materials in a hybrid structure is line research great interest at present. Nevertheless, the machining with different machinability requires specific processes capable minimizing defectology both and achieving correct surface finish terms functional performance. In this article, abrasive water jet carbon fiber-reinforced thermoplastics (CFRTP)/Steel generated are studied. A parametric study two stacking configurations (CFRTP/Steel Steel/CFRTP) has been established...

The tribological performance of high reinforcement concentration AlSiC-9 Metal Matrix Composite (63% reinforcement) can be improved by laser texturing. This research performs different topographies changing the energy density and scanning speed parameters, which modify liquid retention wear resistance. Results demonstrated a reduction up to 60% in friction coefficient 70% volume. SEM/EDX analysis identified adhesive, abrasive, plastic deformation as main mechanisms. These results confirm...

The application of Carbon Fiber Reinforced ThermoPlastic matrix composites (CFRTP) is constantly increasing today. They have an excellent weight-to-mechanical properties ratio and in comparison to thermostable their recycling efficiency higher. However, these must be machined obtain complex geometries that perform function. abrasive water jet machining (AWJM) a process free thermal defects, avoiding reach the glass transition temperatures thermoplastic matrix. At same time, it can generate...

The bonding of Carbon Fibre Reinforced ThermoPlastic composites (CFRTP) and steel is great interest nowadays. Nevertheless, the difference in machinability between dissimilar materials requires a specific machining process. Abrasive water jet flexible environmentally friendly technology that can machine at same time with good results. However, due to characteristics process materials, geometrical defects such as taper angle be caused by loss kinetic energy. In this research, study final...

Surface modification of metallic alloys can create hydrophilic or hydrophobic surfaces that enhance the functional performance material. For example, have improved wettability, which improves mechanical anchorage in adhesive bonding operations. This wettability is directly related to type texture created on surface and roughness obtained after process. paper presents use abrasive water jetting as an optimal technology for metal alloys. A correct combination high traverse speeds at low...

The drilling of dissimilar materials in hybrid structures is one the main machining operations aeronautical field. In order to reduce cycle-time, aerospace industry searching for implementation One-Shot (OS) strategies drill CFRP/Ti6Al4V stacks with double-pointed angle cutting-tools, due its good behavior when CFRP drilled. However, there a lack information about CFRP/Ti are For this reason, paper study influence double tip geometry on final quality bores has been carried out. Macro...

Currently Airship Building Industry (ABI) applies new developments of materials by stacking classics (as light alloys) and more recent (such as Carbon Fiber Reinforced Plastics) on different structural elements in order to improve the performance aircraft. Stacks have been usually formed mechanical union although it provokes a weight increase. Because this, adhesive joints proposed. However, this implies third type material, which is especially relevant drilling process required previously...

Abstract Texturing and surface modification operations are a line of research great interest nowadays. The requirement to establish process that can generate constant homogeneous roughness as previous step joining operations, application paint or mechanical tests is current challenge. Technologies such shot blasting laser texturing have achieved results in terms activation. Nevertheless, there an alternative technology achieving interest. Abrasive water jet takes advantage the combination...

Conventional carbon fiber drilling produces defects such as cracking, fiber/matrix degradation and internal delaminations. Abrasive waterjet machining (AWJM) lowers the temperature of cutting process and, therefore, simplifies perforation in material. This work proposes a parameters study reinforced (CFRP) drilling. Transverse feed rate, abrasive mass flow rate stand-off distance are input variables that have been modified for realization experiment. A macroscopic analysis has carried out,...

Currently, the manufacture of hybrid structures dissimilar materials is generating great interest. These allow to combine mechanical properties different achieve a higher functional performance. To obtain these structures, joining technologies are used, especially use adhesives. Nevertheless, for correct application an adhesive, surface metal be bonded must prepared. Laser texturing has become widely studied technology this purpose because it allows very defined textures obtained. This...

This research investigates the generation and evaluation of various geometric surface textures on PLA components produced via fused filament fabrication (FFF). Textures, including grooves, pyramids, cylinders, were created at different depth levels surfaces. The quality these was assessed using a 3D optical system, focusing area parameters such as Sa Sz. wettability each texture evaluated through contact angle sliding tests, revealing ability to modulate angles achieve either hydrophobic or...

The durability and degradation of polymers is very important for product design in terms material choice. behavior two biodegradable thermoplastic materials manufactured by 3D printing, Enviro ABS PLA, was studied. action the sun seawater simulated to find out how they affect properties these over a period 8 weeks. yield strength, maximum elongation, ultimate tensile microscopy were analyzed, as well dimensions mass changes. These studied conclude whether there an environmentally friendly...

The tribological performance of high reinforcement concentration AlSiC-9 Metal Matrix Composite (63% reinforcement) can be improved by laser texturing. This research performs different topographies changing the energy density and scanning speed parameters, which modify liquid retention wear resistance. Results demonstrated a reduction up to 60% in friction coefficient 70% volume. SEM/EDX analysis identified adhesive, abrasive, plastic deformation as main mechanisms. These results confirm...