Results 1 to 10 of about 57,136 (306)

Cutting mechanism of a special 3D concave-shaped PDC cutter applicable to the Weiyuan shale

Journal of Petroleum Exploration and Production Technology, 2023
The Weiyuan shale gas field faces problems of long drilling cycles and high development costs. Improving the drilling efficiency of polycrystalline diamond compact bits in shale formations will significantly reduce the overall well cost and duration ...
Xiaohua Ke, Jinsheng Sun, Xiongwen Yang, Chi Ma, Jiaqing Yu, Kuiling Huang   +5 more
doaj   +2 more sources

Study on design of taper shaped skiving cutters for internal gears (Taper shaped cutter ground with trapezoidal wheels used for pinion cutter grinding)

Nihon Kikai Gakkai ronbunshu, 2017
Taper shaped skiving cutters are commonly used in gear skiving because they provide clearance angles under a simple gear arrangement and they could have lower cutting resistance than cylindrical skiving cutters. Their tooth flanks are generally ground by
Koichiro URIU, Tsukasa OSAFUNE, Takanori MURAKAMI, Morimasa NAKAMURA, Daisuke IBA, Masami FUNAMOTO, Ichiro MORIWAKI   +6 more
doaj   +3 more sources

Mechanical properties of rock cutting by disc cutters and feasibility analysis of mechanical mining in Jinchuan No. 3 Mine with hard rock [PDF]

Scientific Reports
Disc cutters are essential rock-cutting tools for Tunnel Boring Machines (TBMs), primarily used in hard rock excavation. However, TBMs are not suitable for mining actives due to limitations in size and flexibility.
Jian Zhao, Dan Huang, Daming Zhu
doaj   +2 more sources

The theoretical and experimental research of machining equal base circle bevel gears with a pot-shaped milling cutter

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
The purpose of this paper is to achieve machining equal base circle bevel gears with a pot-shaped gear cutter. Based on the theory, the feasibility is analyzed, the coordinate systems of cutting, on both convex and concave surfaces, are established, and ...
Jing DENG, Bin WANG, Xiaozhong DENG, Jubo LI   +3 more
doaj   +3 more sources

Experimental study on shale-breaking of special-shaped cutter PDC bit

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
To enhance the drilling efficiency and extend the service life of PDC (Polycrystalline Diamond Composite) bits in shale formations, this study delves into the rock-breaking mechanisms of special-shaped cutters through a comprehensive experimental ...
Chunliang Zhang, Xin Yang, Zhaoliang Zhu, Xiaohua Ke, Zhaofeng Zhang, Hua Luo, Yong Ma, Dongdong Song   +7 more
doaj   +2 more sources

TECHNOLOGY OF THE FABRICATION OF THE POWDERED SHAPED MILLING CUTTERS BY COOL PRESSING

Вестник Дагестанского государственного технического университета: Технические науки, 2016
Technology of the fabrication of the shaped milling cutters is described In article before hot pressing and toughness to surfaces. In detail process pressing metallic powder is described for fabrication of the powdered details from carbide steel.
A. U. Ahmedpashaev
doaj   +3 more sources

DESIGN OF SHAPED CUTTERS

Science and Technology of Kazakhstan, 2021
The article proposes an algorithm for designing round shaped cutters by graphical and analytical methods. Depending on the shaped profile of the part, this algorithm systematizes the calculation and allows you to apply a unified approach and easily automate it. The purpose of the design is the possibility of automating and reducing the calculation time
null A. Zh. Kassenov, null A. S. Yanyushkin, null A. V. Mazdubay, null D. A. Iskakova, null T. L. Yevtushenko   +4 more
openaire   +1 more source

Surface Micro-Texture and Cutting Characteristics of Milling Cutter for Die-Casting Aluminum Alloy

Shanghai Jiaotong Daxue xuebao, 2021
Aimed at the problems of low processing accuracy and surface quality of die-casting aluminum alloy under the influence of cutting force, a method of using surface micro-textured milling cutter with groove and V-shaped arrays on the rake face was proposed.
HE Lihua, PAN Jianfeng, NI Jing, FENG Kai, CUI Zhi
doaj   +1 more source

Experimental Study of Penetration Capability of an Annular-Shaped Charge under Multipoint Synchronous Initiation

Shock and Vibration, 2023
The large-distance penetration capability of an annular-shaped charge under multipoint synchronous initiation was experimentally investigated. For different annular charge structures and different multipoint initiation settings, incident angle, collision
Liu Jie, Hong Qing, Gao Jiandong, Chen Xi, Du Zhonghua   +4 more
doaj   +1 more source

Study on rock breaking efficiency of special shaped cutters

IOP Conference Series: Earth and Environmental Science, 2022
Abstract The optimization of cutter shape has become one of the main innovation direction of PDC bit technology. At present, both domestic and foreign bit manufacturers have put forward various special shaped cutters to improve rock breaking efficiency.
Qi Peng, Yingcao Zhou, Jiaqing Yu, Xiongwen Yang, Yu Liu, Chi Ma, Chris Cheng, Xiaohua Ke   +7 more
openaire   +1 more source