Results 11 to 20 of about 206 (118)

Study on Vacuum Brazing Technology of Polycrystalline Diamond and High Speed Steel [PDF]

open access: yesCailiao Baohu, 2021
In order to realize the connection between polycrystalline diamond (PCD) and high speed steel, Ag-Cu-Ti-In solder was used for vacuum brazing. The brazing temperature, heating current and holding time were selected as experimental factors by Box-Behnken ...
WU Qi-liang, YU Ai-bing, SUN Lei, ZHAO Shuo, LI Yi, LI Jian-yong
doaj   +1 more source

Impact Failure of Polycrystalline Diamond Cutters [PDF]

open access: yesEPJ Web of Conferences, 2021
Polycrystalline Diamond (PCD) Cutters are ultra-hard tools used for oil and gas drilling. These tools can fail in the form of spalling due to impact.
Laurence Robin C   +2 more
doaj   +1 more source

TOOL WEAR AND SURFACE ROUGHNESS IN TURNING GRP PIPES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2012
Composites have received considerable attention due to their excellent engineering properties and have become large leading materials in industry. Glass reinforced plastic (GRP) composite materials are used in many engineering fields because of its good ...
T. M. EL-HOSSAINY, A. EL-HABAK
doaj   +1 more source

Grinding techniques for fabricating micro-lens array mold made of cemented carbide (Polycrystalline diamond tools and mold surface roughness)

open access: yesNihon Kikai Gakkai ronbunshu, 2021
A grinding technique was developed to fabricate a micro-lens array (MLA) mold made of cemented carbide with a diameter of 30 μm, a pitch of 35 μm, a diameter expansion rate of 0%, a surface roughness of less than 10 nmRz and 1027 lenses.
Takuya SEMBA   +2 more
doaj   +1 more source

Improving Pressure–Velocity Limit of Mechanical Seal with Polycrystalline Diamond Coating

open access: yesApplied Sciences, 2020
Polycrystalline diamond (PCD)-coated mechanical seal rings were prepared by hot filament chemical vapor deposition (HFCVD) on graphite-loaded silicon carbide (GSiC) substrates.
Daidong Guo   +6 more
doaj   +1 more source

Micro Drilling of Single Crystal SiC Using Polycrystalline Diamond Tool [PDF]

open access: yes한국정밀공학회지, 2021
Silicon carbide (SiC) has been used as a material for semi-conductor, molds, and micro-electro-mechanical systems (MEMS) because of its superior thermal, electrical, and mechanical properties.
Ui Seok Lee   +3 more
doaj   +1 more source

Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies

open access: yesMetals, 2020
The treatment of industrial polycrystalline diamond (PCD) blanks in aqua regia at atmospheric pressure between 333 K and 353 K was performed via the ultrasound-assisted leaching process to investigate whether the influence of ultrasound is beneficial ...
Ferdinand Kießling   +3 more
doaj   +1 more source

REDUCING METAL CONTENT IN PCD POLYCRYSTALLINE DIAMOND LAYER BY CHEMICAL AND ELECTROCHEMICAL ETCHING

open access: yesIzvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Universitiesʹ Proceedings. Powder Metallurgy аnd Functional Coatings), 2017
This article is devoted to investigating polycrystalline diamond compacts (PDCs), which find broad application in drilling, tool-and-die, and building branches of industry. They are a complex composition of diamond and cermet phases. The diamond phase consists of diamond grains of various granulometric compositions and shapes and forms a strong hard ...
N. I. Polushin   +2 more
openaire   +2 more sources

Super-Hard DLC Coatings as an Alternative to Polycrystalline Diamond for Cutting Tools: Predictive Analysis of Aluminium Alloy Surface Quality

open access: yesLubricants, 2022
The use of lightweight materials, such as ultra-high-strength aluminium alloys, is in high demand in the automotive and aerospace industries where weight savings are critical.
Giselle Ramírez   +7 more
doaj   +1 more source

Research progress and prospect of polycrystalline diamond

open access: yesJin'gangshi yu moliao moju gongcheng, 2021
Polycrystalline diamond (PCD) is sintered under high pressure and high temperature conditions with diamond as the skeleton material and binder as the bonding material.
ZOU Qin   +5 more
doaj  

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