Results 31 to 40 of about 61,552 (299)

A Biomimetic Basalt Fiber/Epoxy Helical Composite Spring with Hierarchical Triple-Helix Structures Inspired by the Collagen Fibers in Compact Bone

open access: yesBiomimetics, 2022
The lightweight property of helical composite spring (HCS) applied in the transportation field has attracted more and more attention recently. However, it is difficult to maintain stiffness and fatigue resistance at the same time.
Jiahui Wang   +11 more
doaj   +1 more source

New digitalization approaches in forging technology

open access: yes, 2022
Forming technology has a high potential for digitalization in the course of Industry 4.0. In particular for bulk metal forming, new approaches to digital process monitoring, process control and workpiece tracking can make a major contribution to ...
Deliktas, Tahsin   +5 more
core   +1 more source

Thermal performance prediction and verification of 2D triaxial braided composites based on coupling method

open access: yesCailiao gongcheng, 2020
In order to improve the shortcomings of the finite element unit-cell establish method based on traditional FEM, which has difficulty in meshing and calculation, a superimposed method was proposed. Based on the superimposed method, the finite element unit-
ZHANG Fang-fang   +3 more
doaj   +1 more source

Control of a multi-degree of freedom worktool for vibrations assisted forging [PDF]

open access: yes, 2014
This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds.
AMBERG, Michel   +12 more
core   +1 more source

Contribution in the evaluation of a performance index of hot forging dies [PDF]

open access: yes, 2016
The present paper focuses on a new concept of evaluation of a performance index of hot forging dies through the combination of a process behaviour model and a reliability approach analysis of the forging process.
BENDJOUDI, Youcef   +3 more
core   +1 more source

The influence of auxiliary gases in the optimized analysis of pulsed laser grooving of a C70S6 connecting rod for fracture splitting

open access: yesResults in Physics, 2017
Controlled fracture splitting technology has great potential in processing the splitting parts such as engine connecting rod, and the pulsed laser processing of notches for fracture splitting, which is crucial for controlling the fracture splitting ...
S.Q. Kou, Y. Gao, W.Q. Gao
doaj   +1 more source

Study on structural modeling and kinematics analysis of a novel wheel-legged rescue robot

open access: yesInternational Journal of Advanced Robotic Systems, 2018
This article presents a novel rescue robot with three-degrees of freedom leg mechanism based on the serial–parallel and wheel-legged mechanisms, which consists of two U niversal joint- P rismatic joint- S pherical joint plus one U niversal joint and R ...
Jianye Niu   +6 more
doaj   +1 more source

Multi-Objective Optimization Design of Constant Stress Accelerated Degradation Test Using Inverse Gaussian Process

open access: yesIEEE Access, 2019
A multi-objective optimization method for constant stress accelerated degradation test is proposed in order to solve the problem of different or even conflicted test configuration under different optimization objectives.
Zhenyu Wu   +4 more
doaj   +1 more source

A mechanism-based model for prediction of damage and failure in cold forging processes

open access: yes, 2022
S.99-102Cold-forged steel parts are widely used in the automotive and mechanical engineering industry due to the increasing demands for quality and reliability.
Augenstein, E., Helm, D., Zapara, M.
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

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