Results 1 to 10 of about 38 (37)

The impact of shot size and duration of peening on the enhancement of wrench socket fatigue lifespan

open access: yesJournal of Materials Research and Technology
Fatigue cracking is the predominant mode of fracture observed in wrench sockets. Among the various techniques employed to enhance fatigue resistance, shot peening is the most widely utilized method. This study aims to investigate the effects of shot size
Hsuan-Han Lai, Kun Ming Chiu, Weite Wu
doaj   +3 more sources

High-Frequency Vibration from Hand-Held Impact Wrenches and Propagation into Finger Tissue

open access: yesProceedings, 2023
High-frequency shock-type vibration (HFV) with a frequency content mainly above 1250 Hz, e.g., from impact wrenches, is likely to cause a significant amount of vibration injuries and even hand-arm vibration syndrome.
Snævar Leó Grétarsson, Hans Lindell
doaj   +1 more source

Polyphenylene sulfide-coated wrench composites by nanopinning effect

open access: yesNanotechnology Reviews, 2021
When using a wrench, the nut is easily damaged due to improper operation or impact. Although coating a polymer layer on the surface of the wrench can effectively solve the above problem, the layer is easy to be deboned due to the lack of adhesion between
Liu Yusong   +5 more
doaj   +1 more source

Fingertip Model for Analysis of High-Frequency Vibrations

open access: yesProceedings, 2023
High-frequency shock-type vibrations (HFVs) from, e.g., impact wrenches with a frequency content mainly above 1250 Hz have long been suspected to cause a significant number of vibration injuries, HAVS.
Peter Ottosson   +2 more
doaj   +1 more source

Using an Impact Wrench in Different Postures—An Analysis of Awkward Hand–Arm Posture and Vibration

open access: yesProceedings, 2023
Overhead work and awkward hand–arm posture can impact muscle load. Additional workloads such as hand–arm vibration exposure while carrying or holding a power tool can contribute to adverse health effects.
Nastaran Raffler   +2 more
doaj   +1 more source

Assessment of workers\' exposure to hand-arm vibration of impact wrench in heavy vehicles punctured shops and provide vibration control methods [PDF]

open access: yesSalāmat-i kār-i Īrān, 2022
Introduction In today's world, with the advancement of technology, hand tools that required the physical strength of the body have given way to electric and pneumatic tools. Despite all the advantages that these tools have, there are many limitations and
mohammad zabehi   +3 more
doaj  

Using an Impact Wrench in Different Working Directions—An Analysis of the Individual Forces

open access: yesProceedings, 2023
When working in different directions, factors such as awkward postures can lead to different physical stresses, which can have an influence on the effects of hand–arm vibrations. In this regard, the individual forces can have an influence on the hand–arm-
Thomas Wilzopolski   +2 more
doaj   +1 more source

Sensorless Optimal Switching Impact/Force Controller

open access: yesIEEE Access, 2021
Intelligent interaction control is required in many fields of application, in which different operative situations have to be faced with different controllers.
Loris Roveda   +3 more
doaj   +1 more source

Influence of design implant and apical depth in post-extraction sockets: an in vitro simulated study

open access: yesBMC Oral Health, 2023
Background Implant design and apical stability are principal parameters involved in achieving successful primary stability. Using polyurethane models to simulate post-extraction sockets, we investigated the effects of using differing blade designs on the
Marcelo Sales Cavalcante   +9 more
doaj   +1 more source

Permanent Magnet Brushless DC Motor and Mechanical Structure Design for the Electric Impact Wrench System

open access: yesEnergies, 2018
This paper presents an analytical method to design an interior permanent magnet brushless DC electric motor (IPMBLDC motor) for a kind of electric impact wrench used for loading and unloading car bolts.
Chengyuan He, Thomas Wu
doaj   +1 more source

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