Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Jan K. Spelt"'
Publikováno v:
AIP Advances, Vol 10, Iss 12, Pp 125101-125101-12 (2020)
Inertial microfluidics has been used in recent years to separate particles by size, with most efforts focusing on spiral channels with rectangular cross sections. Typically, particles of different sizes have been separated by ensuring that they occup
Externí odkaz:
https://doaj.org/article/815ba2a3f3544a2fbfc89af3a26f37d2
Autor:
Jan K. Spelt, Lucas da Silva Maciel
Publikováno v:
Powder Technology. 366:434-447
Discrete element methods (DEM) have been widely used in predicting the behavior of vibrated granular media, including that in vibratory finishing (VF) processes. In VF loose abrasive particles are fluidized by a vibrating container and the particle v
Autor:
Lucas da Silva Maciel, Jan K. Spelt
Publikováno v:
Powder Technology. 360:911-920
The bulk flow and local impact velocities of loose abrasive particles in vibratory finishing operations have been explained in the literature in terms of the forces exerted by the vibrating container walls. In the present work, these forces were meas
Publikováno v:
International Journal of Machine Tools and Manufacture. 143:92-106
To decrease the size of the eroded footprint resulting from abrasive air jet machining, the aerodynamic focusing of an abrasive particle jet was investigated. Using a slot nozzle abrasive jet, the best focusing employed a pair of bounding air jets ti
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 102:317-331
The resolution of features machined with abrasive slurry jets is dependent on the diameter of the erosion footprint on the workpiece and on the stability of the jet. Previous work has shown that the footprint size decreases, but the jet oscillation i
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 101:3021-3034
Part I of this two-part paper presented mixing chamber conditions and jet characteristics in a high-pressure abrasive slurry jet micro-machining (HASJM) system. The present paper describes the modeling of the slurry entrainment process within the mix
Low-stress creep deformation in two opto-electronic glass-epoxy joints: Part I – adhesive creep data
Publikováno v:
International Journal of Adhesion and Adhesives. 86:139-146
This two-part paper presents measurements and modelling of creep deformation at relatively low stress of two epoxy adhesives used in opto-electronic applications, one having a relatively high modulus and the other a low modulus. Part I describes the
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 112:299-314
Delamination is a common defect when abrasive waterjet (AWJ) cutting composite laminates. This paper presents experimental and numerical results used to characterize delamination when AWJ cutting a carbon-fiber/epoxy laminate. A fluid-structure inter
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 99:1283-1291
Techniques to enhance the performance of a high-pressure abrasive slurry jet micro-machining process (HASJM) were investigated by altering the conditions within the jet. The slurry flow rate was controlled using six inlet tubes (cross-sectional areas
Publikováno v:
Precision Engineering. 53:151-162
This paper investigates the use of air-driven abrasive jets as a lathe and as a means of machining helical patterns into rotating rods. The first part of the paper presents a model for the prediction of material removal during the machining of rotati