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Chatter Vibration Comparison Between Normal Helix Angle and Variable Helix Angle in End Milling Process Based on Spectrum Analysis

open access: yesRekayasa Mesin, 2020
Chatter vibration in machining processes is often found in cutting processes which will decrease the machining efficiency and the surface quality of the products. Chatter is a relative vibration of the cutting tool and workpiece caused by the fluctuation
Achmad As'ad Sonief   +3 more
doaj   +3 more sources

Influence of helix angle on heat transfer characteristics of regenerative cooling in spiral channel

open access: yesCase Studies in Thermal Engineering
A rapid solution method for spiral line and a one-dimensional (1-D) heat transfer calculation model for spiral regenerative cooling channels (RCCs) are proposed to clarify the influence of the helix angle on the heat transfer characteristics of spiral ...
Xinlin Liu   +4 more
doaj   +3 more sources

Helix Angle Effect on the Helical Gear Load Carrying Capacity

open access: yesWorld Journal of Engineering and Technology, 2018
The aim of this study is to investigate the helix angle effect on the helical gear load carrying capacity, including the bending and contact load carrying capacity. During the simulation, the transverse contact ratio is calculated with respect to the constant pressure angle.
Mehmet Bozca
exaly   +4 more sources

Investigation of Optimum Helix Angle of a Wire Rope Subjected to Harmonic Dynamic Loading [PDF]

open access: yesEngineering and Technology Journal, 2019
The current work includes the dynamic structural analysis of wire rope with different helix angle. The main objectives are; estimating the stress and deflection for each helix angle, comparing the results to get the best helix angle suitable for ...
Hatem Obeid, Riham Nima
doaj   +1 more source

Helix angle measurement method based on end face and side image processing of helical gear

open access: yesXi'an Gongcheng Daxue xuebao, 2021
The helix angle measurement of helical gear is difficult and the measurement process is complex. In order to improve the measurement accuracy and efficiency, the method of measuring helix angle of helical gear is proposed, by using two cameras to collect
Shuanjun SONG   +4 more
doaj   +1 more source

Study on the toroidal helix and manufacturing method of enveloping hourglass worm tooth surface

open access: yesAdvances in Mechanical Engineering, 2023
As a complex space enveloped surface, the tooth surface of dual-lead helical gear enveloping hourglass worm is characteristic with difference tooth profile, unequal pitch and variable tooth thickness.
Yan Chen, Xinhua Wang, Huili Ma
doaj   +1 more source

Resistance Capacity of Inclined Anchored Pile Group to Lateral Load in Sandy Soil

open access: yesDiyala Journal of Engineering Sciences, 2022
This study was conducted to investigate the lateral behavior of inclined anchored pile group by using (3 pile) model embedded in sandy soil by relative density 65% under lateral static load.
Ali H. Ahmed, Hassan Obaid Abbas
doaj   +1 more source

Calculation of helix packing angles in protein structures [PDF]

open access: yesBioinformatics, 2003
Abstract Summary: Software is presented for the calculation of packing angles and geometry of helical secondary structure elements in protein structures. Availability: C language source code and documentation is available from http://www.bioinformatics.leeds.ac.uk Contact: D.R.Westhead@leeds.ac.uk
James A. R. Dalton   +2 more
openaire   +2 more sources

Research on biomimetic design and impact characteristics of periodic multilayer helical structures

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Osteons are composed of concentric lamellar structure, the concentric lamellae are composed of periodic thin and thick sub-lamellae, and every 5 sub-lamellae is a cycle, the periodic helix angle of mineralized collagen fibers in two adjacent sub-lamellae
Yu-Xi Liu   +4 more
doaj   +1 more source

Research on Milling Characteristics of Titanium Alloy TC4 with Variable Helical End Milling Cutter

open access: yesMachines, 2022
The application of variable helical end mills to the milling of titanium alloys can suppress the regeneration effect during the machining process and ensure the stability of milling.
Xiangming Hu   +3 more
doaj   +1 more source

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