Results 101 to 110 of about 8,497 (257)

Exploiting Device Deformability for Fluid and Particle Manipulation

Small, EarlyView.
Deformable devices enable fluid and particle manipulation modes that are inaccessible to rigid platforms. This review examines soft materials and architectures that translate controlled deformation into microscale fluid operations such as pumping, valving, mixing, and particle handling.
Zhiyang Hong, Xiaoyue Kang, Dan Yuan, Nam‐Trung Nguyen, Jun Zhang   +4 more
wiley   +1 more source

Developments in beam scanning (remote) technologies and smart beam processing

, 2022
S.422-433This chapter describes the state of the art as well as the future trends of fast laser beam deflection and shaping for welding applications. The key principles of fast laser beam manipulation like galvanometer-driven and conventionally-driven ...
Wetzig, A.
core   +1 more source

Physical Anchoring‐Assisted Mechanically Guided Assembly for Material‐Independent 3D Mesostructures

Small, EarlyView.
Conventional mechanically guided 3D assembly relies on selective chemical bonding between 2D precursors and elastomeric substrates, imposing fundamental limitations on material compatibility and scalability. Here, we present a physically anchored, buckling‐guided assembly platform based on a rod array patterned elastomeric substrate (RPES).
Yeonhee Heo, Pei Liu, Jeongmin Yoo, Jae Hyuk Hwang, Gooyoon Chung, Dong‐Gyun Kim, Raudel Avila, Yoonseok Park   +7 more
wiley   +1 more source

Prediction and optimization of residual stresses, weld-bead profile and mechanical properties of laser welded components [PDF]

, 2006
Recently, laser welding has become a leading industrial joining process. Mainly because it has become highly automated using sophisticated robotic systems. However, to make effective use of automated laser welding it is essential to have a high degree of
Benyounis, Khaled
core  

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Improved CFRTP/AZ31B alloy hybrid joint by surface micro-texture and laser rotational welding technique

Materials & Design
As famous lightweight materials, carbon fiber reinforced thermoplastic (CFRTP) composites and magnesium (Mg) alloys are extensively used in the aerospace industry.
Chenghu Jing, Liyuan Sheng, Jihao Xu, Zifa Xu, Di Wu, Junke Jiao   +5 more
doaj   +1 more source

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source

Analysis of the physical processes occurring during deep penetration laser welding under reduced pressure [PDF]

, 2016
Recent published experimental results obtained on deep penetration laser welding realized under reduced ambient pressure have shown very interesting results: resulting weld seams have geometrical characteristics that are similar to those obtained with ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, Shengyong Pang, PANG, Shengyong, HIRANO, Koji   +5 more
core   +1 more source

Analysis of laser-slag interaction in laser beam tandem submerged arc hybrid welding using high-speed imaging

Journal of Advanced Joining Processes
Industrial welding of large sheet thicknesses of around 40 mm is generally carried out by using a submerged arc welding process. Process-induced, a large number of weld passes are required to join the components.
M. Clemens, L. Knoll, S. Olschok, U. Reisgen   +3 more
doaj   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source