Results 41 to 50 of about 890,044 (188)

Effect of Rake Angle on DTMB Marine Propeller

Sustainable Marine Structures
The marine propeller typically functions within the flow field generated by a water vehicle. Investigations into the geometric parameters of the propeller are commonly conducted under open-water conditions as simultaneously simulating both vehicle and propeller holds several computational challenges.
Muhammad Suleman Sadiq, Adil Loya, Imran Mushtaque, Wasim Akram   +3 more
openaire   +1 more source

Research on Fidelity Performance of Coring Bits during Drilling and Cutting in Deep Extreme Environments

Applied Sciences, 2023
Deep rock formations in extreme environments are characterized by complex working conditions, various structures, high hardness, and high resistance to compression. However, existing coring techniques leave the cores of deep rock formations vulnerable to
Fuda Sun, Ling Chen, Yanyan Li, Zhehao Wang, Bin Xiao, Zexiang Chen   +5 more
doaj   +1 more source

The Effect of Tool’s Rake Angles and Infeed in Turning Polyamide 66

Engineering, Technology & Applied Science Research, 2023
Polyamide PA66 has been adopted by a variety of industries, and engineering fields. It is used in machinery part production due to its good properties. Machining is the most commonly used processing technique when high quality of part dimension and surface is required. There is a lack of knowledge about the impact of the tool’s rake angles when turning
Shawbo A. HamaSur, Rzgar M. Abdalrahman
openaire   +1 more source

Mathematical Modeling and Generating Method of Hourglass Worm Gear Hob’s Rake Face Based on a Rotating Paraboloid Surface

Machines
The rake angles on both sides of the cutting edges of the hourglass worm gear hob significantly influence its cutting performance, which, in turn, plays a decisive role in the surface quality of the machined worm wheel.
Yupeng Li, Jie Yang, Run Gu, Zhijiang Chen, Chunming Xia   +4 more
doaj   +1 more source

Rake Angle Effect on a Machined Surface in Orthogonal Cutting of Graphite/Polymer Composites

Advances in Materials Science and Engineering, 2018
Graphite and its composites have been widely used in various industrial fields. It has been generally accepted that, for positive rake angles, there is a significant increase in tension stress at the cutting zone during the machining of brittle materials,
Dayong Yang, Zhenping Wan, Peijie Xu, Longsheng Lu   +3 more
doaj   +1 more source

Coupling effects of laser assistance and tool rake angle on brittle-ductile transition in monocrystalline silicon

Journal of Materials Research and Technology
Laser-assisted turning (LAT) is an energy-field-assisted turning method developed to improve the machinability of hard and brittle materials, such as monocrystalline silicon.
Guohui Li, Gangjie Luo, Jiafu Zhou, Yang Ou, Cheng Huang, Chaoliang Guan, Yifan Dai, Xiaoqiang Peng, Yupeng Xiong   +8 more
doaj   +1 more source

Numerical Simulation on Rock-Breaking Mechanism of Axe-shaped Cutter

Shiyou jixie, 2022
Axe-shaped cutter has good impact resistance and wear resistance,can improve the rock-breaking efficiency of PDC bit,and is widely used in high abrasive and hard formations.In this paper,based on elastic-plastic mechanics and rock mechanics,taking ...
Gong Junyun, Wu Wenxiu, Zhou Zonggan
doaj  

A Study on the Cutting Mechanism with Large Negative Rake Angle

Journal of the Japan Society of Precision Engineering, 1978
In this paper, experimental results in low speed machining on lead with a wide range ofnegative rake angle of a tool (0--75deg.) are presented. During cutting, the deformation process of grid lines on the side of a test-piece was observed through the side glass restricting the side-flow of the material in order to clarify the behavior of the material ...
KITA, Yoshihiro, IDO, Mamoru, KAWASAKI, Naomichi   +2 more
openaire   +2 more sources

Analysis of the Effect of the Tool Shape on the Performance of Pre-Cutting Machines during Tunneling Using Linear Cutting Tests

Applied Sciences, 2022
Owing to several advantages, mechanical pre-cutting techniques were first introduced in the United States and subsequently used in Europe for tunneling.
Han-eol Kim, Kyoung-min Nam, Tae-su Kyeon, Hafeezur Rehman, Han-kyu Yoo   +4 more
doaj   +1 more source

Tool life in high speed turning with negative rake angle

, 2011
The present work studies some aspects of turning process applied on mild steel using cermets tools at high speed cutting (1000mm/min) by using negative rake angle (90 to 12).
Al Hazza, Muataz Hazza Faizi, Adesta, Erry Yulian Triblas, Erry Yulian Triblas Adesta, Muataz H.F. Al Hazza   +3 more
core   +1 more source