I. Crespo

ORCID: 0000-0003-4123-2476
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About
Contact & Profiles
Research Areas
  • Aluminum Alloys Composites Properties
  • Aluminum Alloy Microstructure Properties
  • Advanced machining processes and optimization
  • Microstructure and mechanical properties
  • Musculoskeletal synovial abnormalities and treatments
  • Advanced ceramic materials synthesis
  • Metallurgy and Material Forming
  • Metal and Thin Film Mechanics
  • Metallurgical Processes and Thermodynamics
  • Injection Molding Process and Properties
  • Cellular and Composite Structures
  • Electrospun Nanofibers in Biomedical Applications
  • Magnesium Alloys: Properties and Applications
  • Orthopedic Surgery and Rehabilitation
  • Manufacturing Process and Optimization
  • Temporomandibular Joint Disorders
  • Advanced Machining and Optimization Techniques

Tecnalia
2010-2020

Nowadays, fuel consumption and carbon dioxide emissions are two of the main focal points in vehicle design, promoting reduction weight vehicles by using lighter materials. The aim work is to evaluate influence different aluminium foams injection parameters order obtain compound castings with a compromise between obtained properties high-pressure die cast (HPDC) as cores into magnesium part. To on final casting products quality, type density foam, metal temperature, plunger speed,...

10.3390/met6010024 article EN cc-by Metals 2016-01-15

High pressure die casting (HPDC) dies are nowadays manufactured with high quality forged steels. Cavities made by electrical discharge machining (EDM) or speed milling. The average life of an aluminium HPDC is about 125.000 injections. Refrigeration circuits have simple configurations, because they produced drilling the straight holes. They limitations in distances and diameters Sensors placed where geometry permits easy machining. In order to obtain complex figures, several rapid...

10.1155/2015/287986 article EN cc-by International Journal of Manufacturing Engineering 2015-02-09

Abstract Conventional high-pressure die casting aluminium components present certain limitations in terms of mechanical properties attainable due to the intrinsic porosity castings as well presence iron-based brittle intermetallic phases. The work approaches increase ductility and tensile strength through analysis effect alloying elements Al-Si alloys used for casting. combination providing best results were eventually selected produce a batch that thoroughly tested. final alloy had...

10.3139/146.110877 article EN International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) 2012-11-14

Liquid aluminium alloys affect the moulds, by formation of intermetallic layers at their surface; such attack is enhanced flow molten metal on surface tooling. Metal tooling are used to promote high heat transfer rates and increase solidification rate enhance mechanical properties in cast pieces, but damage affects quality increases production costs due need repair them. This work presents results a series studies conducted evaluate produced samples iron based materials commonly manufacture...

10.1080/13640461.2017.1283878 article EN International Journal of Cast Metals Research 2017-02-07

This work aims to calculate the rigidity point temperature of aluminum alloys by three new methods and compare them with currently employed methods. The influence major minor alloying elements over is also discussed. Until now it has been difficult determine exact point, since small variations in data obtained give variable results, making automate process high accuracy. In this we suggested mathematic based on calculation higher order derivatives (dT/dt) respect time or compared those...

10.3390/app10072472 article EN cc-by Applied Sciences 2020-04-03

Los moldes empleados en la fundición inyectada de metales no férreos tienen una vida útil limitada, debido al deterioro del molde, que se manifiesta forma grietas superficiales. Dichas son causadas, fundamentalmente, por el fenómeno fatiga térmica, a los sucesivos ciclos calentamiento-enfriamiento superficie molde durante su trabajo. La exigencia mejorar materiales para alargar moldes, hace necesario desarrollo nuevos equipamientos evaluar comportamiento INASMETTECNALIA, colaboración con...

10.3989/revmetalmadrid.10.1xiipms article ES cc-by Revista de Metalurgia 2010-12-31
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