Metal matrix composite (MMC) materials are increasingly used in industrial sectors such as energy, structural, aerospace, and automotive. This is due to the improvement of properties by addition reinforcements. Thus, it possible obtain higher strength, better rigidity, controlled thermal expansion, elevated wear resistance. However, extreme hardness achieved during their manufacture, these composites pose a challenge conventional machining industry rapid deterioration experienced cutting...

Polymer additive manufacturing has advanced from prototyping to producing essential parts with improved precision and versatility. Despite challenges like surface finish wear resistance, new materials metallic reinforcements in polymers have expanded its applications, enabling stronger, more durable for demanding industries aerospace structural engineering. This research investigates the tribological behaviour of FFF surfaces by integrating copper aluminium reinforcement particles into a PLA...

Although its importance has increased significantly, Additive Manufacturing is not yet a fully accepted industrial manufacturing process for load-carrying parts. The future success of the group depends on standardization. This work proposes methodology design, manufacturing, and quality evaluation specimens manufactured by Fused Layer Modeling that are composed only one layer (so-called monolayers). processing properties monolayers have been studied systematically yet. A first systematic...

Light alloy machining is a widely implemented process that usually used in the presence of cutting fluids to reduce wear and increase tool life. The use coolants during presents negative environmental impacts, which has increased interest reducing even eliminating their use. In order obtain ecofriendly processes, it will be necessary suppress fluids, trend called “dry machining”. This fact forces machines work under aggressive conditions, producing adhesion affects integrity parts’ surfaces....

The use of carbon fiber reinforced polymers (CFRP) is crucial in industries, such as aerospace, automotive, and marine, due to their excellent strength-to-weight ratio corrosion resistance. However, machining CFRP challenging its abrasive nature, which can cause premature tool wear. Some the commonly used processes for these materials are dry milling water jet (AWJM), offer best alternatives from an environmental point view. This article presents analysis defects surface quality obtained...

High compression forces developed during machining processes -and the subsequent energy transferred - carry on changes in workpiece surface. These are usually evaluated only from dimensional or geometrical viewpoints and less frequently form point of view physicochemical surface properties. Notwithstanding, some works relating properties machined surfaces can be found literature. It is well known that features strongly related to cutting parameters. Therefore, it thought depend This work...

In the most of machining processes, chip morphology and microstructure contain deep information about cutting mechanisms, their evolution and, even, both process workpiece. However, usually, changes in are related only to tool surface integrity hiding relevant information. This is commonly due characterization not an easy task. effect, geometry dimensional features habitually hardly measurable evaluable. this work, a methodology for characterizing developed dry turning processes Titanium...

This work reports on the results of a study different macro-geometrical deviation parameters, such as Straightness (SD), Parallelism (PD) and Circularity (CD) function cutting speed (v) feed (f) dry turned UNS A92024 (Al-Cu) cylindrical bars. The obtained have allowed establishing exponentials parametric model for predicting these deviations those parameters. As consequence that, geometrical surfaces SD(f,v), PD(f,v) CD(f,v) been developed this alloy. These allows determining marginal curves...

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...

Turning of light alloys as aluminum-based UNS A92024-T3 is broadly implemented in the manufacture critical aircraft parts, so ensuring a good functional performance these pieces essential. Moreover, operational conditions include saline environments where corrosion processes are present. In this paper, methodology for evaluation turned proposed. Specimens affected and not by compared. addition, service through tensile stress tests parts considered. The results show that turning improves...

Surface modification of materials through thermal or chemical treatments and coatings development can be used to obtain improved behavior under abrasive adhesive wear. A great variety surface structures with different properties adapted the most demanding requirements. This is due high number parameters that controlled in each treatment, such as technique used, atmosphere, use additive elements base material, thickness modified layers, etc., In order monitoring more accurately wear...

Light alloys machining is a widely implemented process that have usually used in presence of cutting fluids to reduce the wear impact and increase tool life. However, current environmental protection policies require their elimination order improve sustainability. This fact forces work under aggressive conditions, producing adhesion affects integrity part surface. study describes mechanisms UNS A92024 samples dry conditions. EDS analysis showed different composition adhered layers, while...

The influence of the forming process in response into service manufactured workpieces, first instance, through surface integrity can be evaluated. concept includes assessment geometrical aspects like shape and dimensions, physicochemical properties hardness corrosion resistance. This work reports on results a study turning parameters Ultimate Tensile Strength (UTS) turned bars UNS A92024 Aluminium-Copper alloy.

At present, the use of titanium alloys is increasing in a wide range applications different industrial sectors, especially aerospace industry. Machining very important process this sector. However, aeronautical are classified as materials that difficult to machine. A current technique research field machining by material removal simulations using Finite Element Method (FEM). These can notably reduce number experimental tests and allow obtaining first approximation without need for...

The design of an assembly system is part the industrialization phase a product. Traditionally, at conceptual has not been supported by knowledge-based and predictive technologies to same extent as other aspects product development. Today, full virtualization control process lifecycle, well supply-chain, proposed reach smooth intercompany operations, providing real-time access relevant both information for all participating entities. In previous level, this contribution focuses on virtual...

In this work, the results of a preliminary study on dry turning UNS A92050-T84 alloy (Al–Cu–Li, third generation Al–Li alloys) are shown. This has been focused analysis final surface quality machined workpieces, in terms average roughness (Ra). Dry tests have performed, using symmetric WC-Co cutting-tools, with different feeds and cutting speeds. Two geometrical models, linear quadratic, proposed, together non-geometrical potential model, obtained by adjusting measurements to empirical data....

Light alloys, such as Aluminium or Titanium based alloys are frequently used in the aircraft industry. In particular case of Ti they usually commonly turned for obtaining strategic airships parts under rigorous quality requirements, order guarantee functionality workpiece design conditions. So, analysis finishing pieces is essential control process. this paper a study dry UNS R56400 alloy has been achieved on basis surface roughness, Ra, function cutting parameters, feed and speed. parallel,...

In this work a study of tool life uncoated WC-Co inserts — utilized in the dry turning Ti6A14V (UNS R56400) alloy has been achieved. This developed on basis wear time monitoring as function cutting speed (V) for fixed feed (f) and depth (d). Tool (T) evaluated through flank (VB) measurement, making use ISO 3685 standard. VB (T,V) surfaces have allowed defining range where T is maximum. On other hand T(V) curves establishing influence life. From these potential model, way Taylor’s proposed.

In the present research, hybrid laser arc welding (HLAW) process has been applied to join 8 mm thick structural S355J2N steel under 1G configuration. Welding tests were performed at Laser Advanced Center available University of Cadiz, Spain. Different experimental parameters fitted obtain sound butt welds. The welds subjected different quality control tests, including visual inspection, metallographic characterization, microhardness measurements, and tensile fatigue tests. HLAW higher rates...

A matrix stress and strain implementation is made that becomes simpler than tensor notation as usual. The effective calculated using the indicated notation, starting from a deviatoric state. defines functional flow condition which, besides principle of normality, solves an equation for incremental plastic deformation. work determined, usual, state stresses strains. Finally, obtained function working stress, both in case deformation at constant volume with variable model.