a study of the frictional characteristics of metal and

Frictional characteristics of steel sheets used in

The research has considered the frictional characterization of three kinds of drawing quality steels that are commonly used in automotive industry These are a drawing quality steel (DQ) a deep drawing quality steel (DDQ) and extra deep drawing quality steel (EDDQ)

A study of the frictional characteristics of metal and

2014-12-15Frictional force versus displacement loops at the (a) 1st cycle (b) 350th cycle (c) 700th cycle and (d) 850th cycle It was identified from the literature [11] that friction coefficient evolutions of solid lubricant coatings can be described with a help of Kachanov-type damage law

Adhesive wear and frictional characteristics of UHMWPE

2011-3-1Adhesive wear and frictional characteristics of UHMWPE and HDPE sliding against different counterfaces under dry contact condition B F Yousif*1 I M Alsofyani2 and T F Yusaf 1 The current work evaluates the wear and frictional performance of

Friction of Conventional and Silica

In an attempt to improve the problems associated with FR a combination bracket in which a metal slot was inserted into a ceramic bracket was introduced 10 11 The metal-insert ceramic bracket was designed to take into account the lower frictional characteristics of the metal bracket In order to reduce FR the polycrystalline ceramic bracket was designed with a smoothened edge and slot base

A STUDY ON FRICTIONAL CHARACTERISTICS OF WOVEN

2010-5-25A STUDY ON FRICTIONAL CHARACTERISTICS OF WOVEN FABRICS Apurba Das V K Kothari and Nagaraju Vandana Department of Textile Technology Indian Institute of Technology New Delhi-110 016 India apurbatextile iitd ernet kotharitextile iitd ernet Abstract We have examined the fabric-to-metal surface and fabric-to-fabric frictional

A comparative study of frictional force in self

2017-10-23this study Self-ligating brackets can generate varying FRs in vitro according to the wire size surface characteristics and bracket-archwire angulation [Korean J Orthod 2015 45(1):13-19] Key words: Ceramic self-ligating bracket Metal self-ligating bracket Static fric-tional force Kinetic frictional force Souk Min Leea Chung-Ju Hwangb

Friction of Conventional and Silica

In an attempt to improve the problems associated with FR a combination bracket in which a metal slot was inserted into a ceramic bracket was introduced 10 11 The metal-insert ceramic bracket was designed to take into account the lower frictional characteristics of the metal bracket In order to reduce FR the polycrystalline ceramic bracket was designed with a smoothened edge and slot base

Frictional wear characteristics of biomedical

2007-7-30The frictional wear characteristics of Ti–29Nb–13Ta–4 6Zr alloy subjected to solution treatment (referred to as TNTZ ST) and aged at 598 673 and 723 K after solution treatment (referred to as TNTZ 598K TNTZ 673K and TNTZ 723K respectively) were investigated in air and a simulated body environment (Ringer's solution) as a function of the loading level

A study of Wear and frictional behavior of metals and

2019-7-1although the Metal on Metal bearing couple is a good choice for THA but it has a backdrop of having metal debris and metal-ions and their potential toxicity still remains In case of MOP the UHMWPE has better wear resistant characteristics bio-compatibility low friction

STUDY OF DIMPLE TEXTURE WEAR CHARACTERISTICS BY

2017-11-18Negative texturing which is the focus of the current study is mostly employed in automotive components and in machining tools and punches for metal forming processes Different texture parameters such as shape size density depth and orientation or a combination of these parameters control the effectiveness of the surface texture

Comparison of the frictional characteristics of

This confirms the results of a previous study comparing the frictional forces generated by metal conventional polycrystalline ceramic and stainless steel slot aesthetic brackets which showed that the frictional forces decreased when stainless steel inserts were used inside ceramic bracket slots 23 There have also been other studies that

A comparative study of frictional resistance during

Materials and Methods: the frictional resistance was tested between three modern orthodontic brackets-stainless steel ceramic and ceramic with metal slot (0 022-inch) and seven different archwires (0 019 0 025-inch)-stainless steel nickel-titanium Teflon coated stainless steel stainless steel with the reverse curve of spee (RCS) Teflon coated stainless steel with RCS Teflon coated

Study on Lubrication Characteristics of Metal Liquid

In an electromagnetic rail launcher a metal liquid film is created at the armature/rail (A/R) contact interface It has a significant impact on electromagnetic launch performance In this paper an electromagnetic-elastic mechanics-hydrodynamics multi physics coupling model is established in consideration of the metal liquid film's own acceleration magnetic pressure and dynamic changes in

A study on frictional characteristics of woven fabrics

We have examined the fabric-to-metal surface and fabric-to-fabric frictional characteristics (in both warp and weft directions) of a series of fabrics containing polyester viscose and P/C P/V blends with different blend proportions

Study of Nanoscale Friction Behaviors of Graphene on

2018-2-2In this paper we investigate the friction behaviors of graphene flakes sliding on a gold substrate using molecular dynamics simulations The effects of flake size flake shape relative rotation angle between flake and substrate and crystal orientation of substrate on the friction process are thoroughly studied It is found that under the same load the average friction forces per atom are

Study on Friction Characteristics in Nonmetal between

Abstract The wear characteristics between nonmetal and metals have been investigated using a disc on disc system The specimens of nonmetal are made by the nylon and teflon materials The specimens of the metal are used as eight kinds of along their hardness

Frictional Characteristics and Electrical Conductivity of

In this study porous materials were applied to the surface materials of electrical sliding contacts to produce long and stable operations The first perspective was to inspect the effect of the design parameters on the electrical conductivity and the frictional characteristics this was done by performing tests under various loads applied

STUDY OF DIMPLE TEXTURE WEAR CHARACTERISTICS BY

2017-11-18Negative texturing which is the focus of the current study is mostly employed in automotive components and in machining tools and punches for metal forming processes Different texture parameters such as shape size density depth and orientation or a combination of these parameters control the effectiveness of the surface texture

Proc IMechE Part J: Frictional study of alumina 316

This paper presents an investigative study on the frictional characteristics of alumina 316 stainless steel and phosphor bronze materials against resin-impregnated carbon in the form of mechanical seals An experimental setup was designed and fabricated to study the frictional characteristics of the seal for varying normal load and speed

Statistical analysis of yarn to metal frictional

2019-8-22These frictional properties are measured in terms of the coefficient of friction of yarn The effect of cotton type yarn twist yarn linear density process type and finishing treatment was studied on the surface to the metal friction coefficient of cotton spun yarn using Taguchi experimental design

A study of a novel aesthetic archwire on its frictional

A study of a novel aesthetic archwire on its frictional properties and its applications to orthodontics By Chai Kiat Chng Kelvin Foong 3M Clarity metal-reinforced ceramic bracket Ormco Inspire ICE ceramic bracket and 3M SmartClip) using the Universal testing machine to study and compare frictional characteristics Results: There was

A comparative study of frictional resistance during

2013-4-1OBJECTIVES: Frictional resistance is an important counterforce to orthodontic tooth movement during sliding mechanics This study was carried out to evaluate the effect of different bracket-archwire-ligation combinations on resistance to sliding during simulated canine retraction on

KoreaMed Synapse

This confirms the results of a previous study comparing the frictional forces generated by metal conventional polycrystalline ceramic and stainless steel slot aesthetic brackets which showed that the frictional forces decreased when stainless steel inserts were used inside ceramic bracket slots 23 There have also been other studies that

Comparison of the frictional characteristics of aesthetic

2017-8-30brackets 15 16 Therefore aesthetic brackets with metal slots were developed to decrease the frictional forces and overcome these drawbacks of ceramic materials 16 Stainless steel archwires also show better results than beta-titanium or nickel-titanium archwires in terms of their frictional characteristics 4 6

Comparative Ex

2020-7-18Comparative Ex-Vivo Evaluation of the Frictional and Debonding Characteristics of Composite (Metal Inserted Plastic) Brackets 2 of 10 characteristics at bracket - arch wire interface Better debonding properties have also been claimed for these brackets Three new composite (metal inserted plastic) brackets with

Frictional properties of aesthetic brackets

Abstract The purpose of this study was to compare the frictional properties of two self-ligating aesthetic brackets Opal (Ultradent Products) and Oyster (Gestenco Int ) with those of four conventionally ligated aesthetic brackets Transcend (3M Unitek) Inspire (Ormco) Allure (GAC Int ) and Image (Gestenco Int )

A study of the frictional characteristics of metal and

2018-10-30A study of the frictional characteristics of metal and ceramic counterfaces against electro-deposited coatings for use on automotive seat rails Kyungmok Kimn School of Aerospace and Mechanical Engineering Korea Aerospace University 76 Hanggongdaehang-ro Deogyang-gu Goyang-si Gyeonggi-do 412-791 Republic of Korea article info Article history: