Fabrication of piston pins made of a novel aluminium-alloyed UHC steel

Behrens, Bernd Arno; Chugreev, Alexander; Kazhai, Mohammad; Yarcu, D.; Büdenbender, Christoph; Relge, Roman

doi:10.1007/s00170-019-03473-z

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Alloys of Copper have the immense capability for usage in a variety of industrial sectors including marine systems, construction, transportation, encapsulating material wastages especially nuclear wastes and this usage is possible mainly because of their superior thermal and electrical conductivities, unique combination of ductility and strength, exemplary resistance to corrosion, etc [1][2][3][4][5]. In aerospace and automotive sectors, the reduction of weight of the components and parts are of major solicitude to enhance the fuel related economy and to curtail the emission of gases.…”

Section: Introductionmentioning

confidence: 99%

“…In aerospace and automotive sectors, the reduction of weight of the components and parts are of major solicitude to enhance the fuel related economy and to curtail the emission of gases. Alloys of magnesium (Mg) possessing nearly 2/3rd the density of the alloys of aluminium (Al), was proven to be an effective and promising material for several industrial scenarios in boosting fuel savings, especially in the sectors of aerospace and automotive [1,2]. For many decades, several alloys of Al have been employed extensively in a majority of industrial sectors owing to their modest volume of density, superior strength, appreciable intransigence against corrosion, easy degree of workability and formability, etc [3].…”

Section: Introductionmentioning

confidence: 99%

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Investigation on the distribution and role of intermetallic aggregates in influencing the mechanical strength of the friction stir welded AZ91C Mg – AA6061 Al alloy joints

J¹,

Sevvel²,

Loganathan³

et al. 2023

Mater. Res. Express

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In this experimental work, 6mm thick plates of distinctive metal alloys namely AZ91C Mg alloy and AA6061 Al alloy were joined using the FSW process, and fabricated joints were investigated to apprehend the impact of convoluted interfaces and their distribution in the nugget zone and the role of intermetallic aggregates in impacting the mechanical properties of the joints. Employment of tool rotational speeds higher than 1100 rpm has fabricated AZ91C Mg–AA6061 Al joints possessing inter–infiltrating structures along with curved junctures, promoting micro-void unification (MCU) on the fractured regions owing to mechanical-related interlocking. AZ91C Mg–AA6061 Al joints have experienced tensile-related failure along the layer of intermetallic and in the regions of inter–infiltrating components nearer to the side of Al parent metal. Joints exhibiting superior strength have been attained due to the generation of intricate interfaces at the joint region, which in turn has contributed to the mechanical-based interlocking. Highest tensile strength exhibited by the joint was 242 MPa, which is nearly 78% of the strength of the parent 6061 Al alloy (310 MPa).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation on the distribution and role of intermetallic aggregates in influencing the mechanical strength of the friction stir welded AZ91C Mg – AA6061 Al alloy joints

J¹,

Sevvel²,

Loganathan³

et al. 2023

Mater. Res. Express

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Aluminum Alloy Piston Fabrication Technology by Super Forging-KIRIU

Anggraini

Anjany

2020

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

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This research aims to produce pistons a lighter and stronger piston, even in high compression and high engine speed conditions. The piston fabrication process is carried out by super forging using Aluminum as a raw material with a compound choice by Silicon or Magnesium. In addition, the outer layer of the piston is covered by molybdenum with the coating process as nanotechnology to prevent corrosion. Furthermore, the finishing is controlled by the programming system machine named CNC (Computerized Numerical Control). In addition to CNC, the automation system is carried out by the KIRIU machine which is also used in this study. The results of this study show that the use of Al-Si alloy base material has better piston quality and able to withstand high compression or high engine speed. Then, the Al-Si superforging piston compared to the two final automation processes of CNC and KIRIU. The evaluation results have proved that the KIRIU machine provides high accuracy and the actual production increases by 20% compared to CNC.

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Analysis of the Operational Wear of the Combustion Engine Piston Pin

et al. 2023

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This article presents the results of research into the causes of the wear of the piston pin mounted in piston bosses by means of a hinge joint and in the connecting rod small end by means of the thermocompression bond. Changes in geometry and in the pin-top surface structure, which are caused by the mutual influence of the mating surfaces in variable lubrication conditions, are presented. The progress of scuffing as a result of insufficient lubrication of the mating elements or oil film breaking is demonstrated. The state of destruction was confirmed by the results of surface roughness measurements showing the formation of build-ups. The loss of the thermocompression bond surface, caused by the penetration of sintered engine oil fractions containing biofuel additive components and spent engine oil improver packages, was noted. The progressing forms of wear are the cause of engine failures due to the pin movement towards the cylinder wall, and due to boss breakage in the piston.

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Fabrication of piston pins made of a novel aluminium-alloyed UHC steel

Cited by 3 publications

References 6 publications

Investigation on the distribution and role of intermetallic aggregates in influencing the mechanical strength of the friction stir welded AZ91C Mg – AA6061 Al alloy joints

Investigation on the distribution and role of intermetallic aggregates in influencing the mechanical strength of the friction stir welded AZ91C Mg – AA6061 Al alloy joints

Aluminum Alloy Piston Fabrication Technology by Super Forging-KIRIU

Analysis of the Operational Wear of the Combustion Engine Piston Pin

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