Results 31 to 40 of about 10,999,716 (208)

Tangential elastic contact model of the cylindrical contact with different axis crossing angles

open access: yesScience Progress, 2022
In this paper, a cylinder contact model with different axis crossing angles is proposed, and the axis crossing angle is introduced into the normal and tangential constitutive equations.
Tieneng Guo   +3 more
doaj   +1 more source

DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]

open access: yes, 2017
In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos   +3 more
core   +2 more sources

Study on the properties and mechanism of magnesium alloy and Ni-plating stainless-steel by ultrasonic-laser welding-brazing

open access: yesScientific Reports
This study aims to provide a new process to improve the welding performance of steel/magnesium dissimilar materials, using an ultrasonic-laser welding-brazing method to joints AZ31B magnesium alloy on 304 stainless steel.
Bing Wang   +7 more
doaj   +1 more source

Design of U-Geometry Parameters Using Statistical Analysis Techniques in the U-Bending Process

open access: yesMetals, 2017
The various U-geometry parameters in the U-bending process result in processing difficulties in the control of the spring-back characteristic. In this study, the effects of U-geometry parameters, including channel width, bend angle, material thickness ...
Wiriyakorn Phanitwong   +2 more
doaj   +1 more source

A New Bending Force Formula for the V-Die Bending Process

open access: yesMetals, 2023
The V-die bending force is an important parameter in respect of press machine capacity selection, but it has not been the focus of previous research. Furthermore, while the various modified formulas proposed in previous research were calculated using V ...
Kongkiet Doungmarda, Sutasn Thipprakmas
doaj   +1 more source

Robotic tool change mechanism [PDF]

open access: yes, 1991
An assembly of three major components is disclosed which included a wrist interface plate which is secured to the wrist joint of a robotic arm, a tool interface plate which is secured to each tool intended for use by the robotic arm, and a tool holster ...
Voellmer, George M.
core   +1 more source

The inhibition mechanism of ultrasonic vibration on stick-slip phenomenon of sliding friction pair

open access: yesScientific Reports
Frictional vibration often occurs during sliding, commonly referred to as the stick-slip phenomenon. It is more likely to occur in the range of the Stribeck curve, where friction and velocity have negative gradient characteristics.
Lingjie Luo   +6 more
doaj   +1 more source

Bearing servicing tool [PDF]

open access: yes, 1992
A tool for removing and/or replacing bearings in situ is presented. The tool is comprised of a brace having a first end adapted to engage a first end of the bearing housing, and a second end adapted to engage a second end of the bearing housing.
Boyce, Rex A.
core   +1 more source

Mechanical property changes of gear surfaces in high-speed hobbing

open access: yesNihon Kikai Gakkai ronbunshu
In recent years, high-precision gears are expected to be used in vehicles and robots. Currently, gear hobbing is widely used as a roughing process while shaving and grinding are used as finishing processes to improve the accuracy and surface quality of ...
Yuki UEDA   +4 more
doaj   +1 more source

Cu/Cu bonding and SiO2/SiO2 bonding by surface activated bonding at room temperature for hybrid bonding technique

open access: yesNihon Kikai Gakkai ronbunshu, 2015
It has been said that the end of Moore’s law will be reached in 10 to 20 years. Three dimensional integration technology is expected to be a possible solution in the post-Moore era.
Jun UTSUMI, Kensuke IDE
doaj   +1 more source

Home - About - Disclaimer - Privacy