electromagnetic forming is a high energy rate forming process in which an electromagnetic lorentz body force is used for deformation of products.  in this article, electromagnetic forming process was simulated for the assembly of parts as an innovative method.  the effect of important process parameters such as discharge energy, radius and width of rectangular groove on the strength of the asse...

By researching the influence of micro-groove texture on surface tribological properties stator and rotor pair oil production hydraulic motors, this paper aims to reduce frictional resistance moment spiral further solve problem difficult restart pump a certain type hydraulic-driven screw pump. According metal-rubber flat plate reciprocating friction model is established, rectangular micro-groove...

The aim of this paper is to offer a novel friction stir welding technique achieve non-thinning and lack kissing bond welds with excellent mechanical properties. In the conventional (CFSW) process, certain size spindle tilting angle shoulder plunge depth were applied in order obtain high-quality welds. However, what was reason for thinning phenomenon weld thus weakening bearing capacity? reducti...

Aiming to solve the problems of poor uniformity seed flow discharge and serious damage traditional straight grooved wheels improve performance air-assisted maize high-speed precision metering devices, a staggering symmetrical spiral feeding wheel with seeds was designed. To explore influence groove inclination angle length staggered feed on discharge, l ρ were used as experimental factors, vari...

Although a two-dimensional (2D) valve has excellent performance, the processing of its spiral groove high cost and is time-consuming. This paper proposes novel torque motor based on an annulus air gap (TMAAG) to replace negative feedback function reduce machining difficulty. In order study change law TMAAG, permeance was analyzed, then qualitative analytical model established. Orthogonal tests ...

Objective: Combined liposuction and abdominoplasty, or lipoabdominoplasty, is particularly helpful in sculpting a more aesthetically pleasing abdominal contour, particularly in the supraumbilical midline groove. This groove, coined the "champagne groove" by one of our patients, is a frequently sought-after attribute by patients. However, liposuction adds time and cost to an already costly abdom...

A multicomponent lattice Boltzmann scheme is used to investigate the surface coating of substrates with two topographical features by a gravity-driven thin liquid film. The considered topographies are U- and V-shaped grooves and mounds. For the case of substrates with two grooves, our results indicate that for each of the grooves there is a critical width such that if the groove width is larger...