Results 1 to 10 of about 19,703 (216)

Modelling forces in milling screw rotors

open access: yesThe International Journal of Advanced Manufacturing Technology, 2022
Abstract The deflections of screw rotors under machining forces cause mismatch between the male and female rotors and, consequently, accelerated wear and suboptimal efficiency in their performance. Optimizing the machining process to minimize the generated forces and accounting for the resulting mismatch in the design of the rotor profile ...
Xi Wang, Keivan Ahmadi
openaire   +1 more source

Cutting Forces Simulation for End Milling

open access: yesJournal of Engineering Sciences, 2023
The cutting force in end milling is the essential perturbation of the machining system that limits the productivity of the process. Therefore, forecasting the cutting force when assigning the processing mode and the geometry of the allowance layer to be cut is an urgent task that requires an operational tool for its solution.
Yuri Petrakov   +3 more
openaire   +3 more sources

Upgraded Kalman Filtering of Cutting Forces in Milling [PDF]

open access: yesSensors, 2020
Advanced piezoelectric dynamometers with a wide frequency bandwidth are required for cutting force measurement in high-speed milling and micromilling applications. In many applications, the signal bandwidth is limited by the dynamic response of the mechanical system, thus compensation techniques are necessary. The most effective compensation techniques
Giovanni Totis   +2 more
openaire   +3 more sources

Milling Force Modeling Methods for Slot Milling Cutters

open access: yesMachines, 2023
The slot milling cutter is primarily used for machining the tongue and groove of the steam turbine rotor, which is a critical operation in the manufacturing process of the steam turbine rotor. It is challenging to predict the milling force of a groove milling cutter due to variations in rake, rake angles and cutting speeds of the main cutting edge ...
Wu, Mingzhou   +3 more
openaire   +2 more sources

Digital force prediction for milling

open access: yesProcedia Manufacturing, 2020
Abstract This paper presents a fully digital, integrated approach for milling force prediction with arbitrary end mill-work material combinations. The approach includes: 1) structured light scanning to identify the end mill’s cutting edge macro-geometry along the tool axis; 2) structured light scanning to measure the cutting edge cross-sectional rake
Michael Gomez, Timothy No, Tony Schmitz
openaire   +1 more source

Cutting Forces in Peripheral Up-Milling of Particleboard [PDF]

open access: yesMaterials, 2021
An analysis of forces acting in the peripheral up-milling of particleboard is presented. First, a novel method of high-frequency piezoelectric force signal treatment is proposed and used to separate the original force signal from the vibrations of the previous cutting iteration.
openaire   +2 more sources

Milling force coefficients-based tool wear monitoring for variable parameter milling [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
Abstract Tool wear is an important factor that affects the aeronautical structural parts' quality and machining accuracy in the milling process. It is essential to monitor the tool wear in titanium alloy machining. The traditional tool wear features such as root mean square (RMS), kurtosis, and wavelet packet energy spectrum are related to not ...
Tianhang Pan   +5 more
openaire   +1 more source

FORCE PREDICTION IN THREAD MILLING

open access: yes, 2003
A mechanistic approach for modelling the thread milling process is presented. The mechanics of cutting for thread milling is analyzed as an end milling process with modified cutting edge. The geometry of threads is added to the geometry of the end milling tool to calculate the chip load area.
Araujo, Anna Carla   +2 more
openaire   +4 more sources

Retractions in Rheumatology: Trends, Causes, and Implications for Research Integrity

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley   +1 more source

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