A software-based relocation technique for surface asperity profiles and its application to calculate volume changes in running-in wear

Sasajima, Kazuyuki; Naoi, Kazuya; Tsukada, Tadao

doi:10.1016/s0043-1648(00)00347-1

Cited by 20 publications

(7 citation statements)

References 9 publications

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“…Previous research demonstrated the necessity of two stages for applying the relocation technique, these being a certain repeated and accurate positioning both in the testing machine and in the measuring device of the specimen. The results of applying the relocation techniques in tribology are presented in [1,5,6,7,8,9,10,11,12,13]. These techniques require either an accurate positioning of the specimen in the complex measuring instrument [2,14].…”

Section: Introductionmentioning

confidence: 99%

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Studies of worn surfaces by relocation profilometry

Rîpă

Iliuţă

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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By relocation profilometry, a series of surface profiles can be recorded from the same track on a specimen. These techniques are used for monitoring specific particular points on the surface subjected to wear processes, in a more accurate manner as comparing to those involving average statistical information for surface. The method is providing a much more significant information about the surface, in a more efficient way, assuring that the same unworn investigated surface is studied after wear test. The studied roughness digital profiles were obtained before and after the testing of rolling/sliding line contacts, characteristic for spur gears, which has been simulated on SAE sets, with a two rollers test machine. The acquisition of the relocated profiles is performed on the same generatrix of the roller, before and after wear testing. To correlate the unworn and worn profiles, a spheroconical indentation was created on the circumferential surface of the disk, in the zone of the tested roller that remain unworn during the test. Measuring changes of the profiles by relocation techniques, two methods for wear assessment are presented: linear wear estimation by simulating the profile wearing and estimation of the volume wear.

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Section: Introductionmentioning

confidence: 99%

“…These techniques require either an accurate positioning of the specimen in the complex measuring instrument [2,14]. In the study presented in [11], a Hirth Coupling (Mitsubishi Heavy Ind.) was used for positioning a specimen on the measuring device.…”

Section: Introductionmentioning

confidence: 99%

Studies of worn surfaces by relocation profilometry

Rîpă

Iliuţă

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…After a mechanical treatment software relocation should be used. Many papers reported methods for relocating three-dimensional surface texture accurately, allowing compensation of lateral and rotational dislocations [7][8][9][10][11][12]. Surface topography measurements performed before and after wear process are typically compared using a cross-correlation method [13] to compensate rotational and translational misalignment.…”

Section: Introductionmentioning

confidence: 99%

Wear Analysis of Discs and Balls on a Micro-Scale

2018

Teh. vjesn.

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Surface topographies of discs and balls after wear process were analysed. Discs were made from 42CrMo4 steel with hardness of 42 HRC, but balls from 100Cr6 steel of hardness 64 HRC. They were measured using white light interferometer Talysurf CCI Lite. Procedures for minimizing errors of wear loss determination were discussed. They can be applied thanks to software TalyMap. It was found that application of wear analysis of discs and balls on a micro scale allowed us precise determination of their wear after tribological tests, however this analysis should be careful, particularly for surfaces of high roughness.

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“…Sasajima et al . () proposed new software‐based relocation techniques. In the direct technique, the index of collation between profiles for the relocation of surface asperities in the evaluation of a truncated surface is defined, and in the statistical technique, the height distribution functions of surface asperity profiles are overlapped, in order to evaluate truncated surfaces (Condeço et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Surface topographic characterization for polyamide composite injection molds made of aluminum and copper alloys

Pereira

Hernández²,

Martínez

et al. 2013

Scanning

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In order to ensure flexibility and rapid new product development, the mold industry made use of soft materials for cavity inserts in injection molds. However, materials of this kind are prone to wear. This article analyzes the topographic characterization of the surface and wear processes in injection molds cavities. Two materials have been used to produce the cavities: aluminum alloy EN AW‐6082 T4 and copper alloy Cu Zn39 Pb3. The surface topography was measured with the use of optical interferometry profiling technology; roughness and surface parameters were determined according to ISO 4287, ISO 25178, and EUR 15178N. In order to complete this research, an experimental part with different thicknesses and shapes was designed, and cavity inserts of aluminum and copper were made. Polyamide PA6, with 30% fiberglass reinforcement, was employed in the experimental procedure. Measurements of cavity mold surfaces were performed after 9,200 cycles on each mold and at different locations on the mold. The surface measurement was made with a white light vertical scanning interferometry, also known as coherence scanning interferometry (ISO DIS 25178‐604). The results are analyzed and differences between the two types of cavity inserts materials are discussed.

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A software-based relocation technique for surface asperity profiles and its application to calculate volume changes in running-in wear

Cited by 20 publications

References 9 publications

Studies of worn surfaces by relocation profilometry

Studies of worn surfaces by relocation profilometry

Wear Analysis of Discs and Balls on a Micro-Scale

Surface topographic characterization for polyamide composite injection molds made of aluminum and copper alloys

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