Topographic Wear Monitoring of the Interface Tool/Workpiece in Milling AISI H13 Steel

Pereira, Alejandro; Martínez, Javier Martínez; Prado, María Teresa Pérez; Pérez, José Antonio; Mathia, T.

doi:10.4028/www.scientific.net/amr.966-967.152

Cited by 7 publications

(6 citation statements)

References 25 publications

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“…There are two routes to manufacturing hot forging dies of AISI H13: high-speed milling or electrical discharge machining (EDM). In both cases, the finishing is done by polishing [5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Sliding abrasive wear when combining WEDM conditions and polishing treatment on H13 disks over 1045 carbon steel pins

Egea

Martynenko

Simoncelli

et al. 2021

Int J Adv Manuf Technol

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Forging dies are crucial in forging to manufacture accurate workpieces. These dies are generally made of AISI H steel series and hardened and tempered medium carbon alloy steel. Dies are processed by using high-speed milling + polishing or electrical discharge machining + polishing. The surface quality of the workpiece depends on the surface properties of these dies, where surface roughness, material hardness, and wear evolution of their surfaces are critical aspects to consider. This research analyzes different wire electrical discharge machining surface conditions combined with polishing treatment to describe their influence on friction and wear. Wire electrical discharge machining defines the disks’ surface properties in finishing and roughing conditions, and polishing treatment varies in time and paper sand depending on the roughness. Abbott-Firestone curves and Rsk-Rku roughness parameters characterize the surface roughness of each studied configuration. Room temperature pin-on-disk tests were performed to analyze friction coefficients and wear rate for AISI 1045 pins and AISI H13 disks. On average, the highest (0.284) and the lowest (0.201) friction coefficients were found for the combination of finishing wire electrical discharge machining + polishing and roughing wire electrical discharge machining conditions, respectively. Scanning electron microscope images were taken to describe the wear tracks and pin degradation for different sliding abrasive configurations. The diagram correlating the surface morphology and the friction coefficient predicts the wear damage on initial surface conditions, which is crucial in the forging industry to determine tool maintenance or replacement.

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Section: Introductionmentioning

confidence: 99%

“…They found the lowest stress and wear rates at a cutting speed of 1400 m/min. Pereira et al [7] also oriented their work to machining cavities using milling cutters with inserts coated with titanium carbonitride. They proposed a wear monitoring process based on the relationship between flank wear, power consumption, and surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Sliding abrasive wear when combining WEDM conditions and polishing treatment on H13 disks over 1045 carbon steel pins

Egea

Martynenko

Simoncelli

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…One option is milling the dies. Here, parameters such as type of tool and its geometry [ 5 , 6 , 7 , 8 ], the machining strategy [ 9 , 10 ] and the operational conditions [ 11 , 12 ] play an essential role on its final surface properties, and these parameters are tightly related to the service efficiency of the die (for example, fatigue resistance). Another option is the Electrical Discharge Machining (EDM) of the dies [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Surface Damaging of Brass and Steel Pins when Sliding over Nitrided Samples Cut by Finishing and Roughing EDM Conditions

et al. 2020

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In the forging industry, surface quality and surface treatments of dies are crucial parameters to extend their life. These components are usually machined by milling or by Electrical Discharge Machining (EDM), and the final surface roughness depends on the machining techniques and operational conditions used in its fabrication. After milling, a nitriding treatment is widely applied to extend its service life. Nevertheless, no scientific report that informs about nitriding after EDM has been found. Accordingly, this work focuses on the wear and friction behavior of pins made of brass and medium carbon steel sliding over AISI H13 discs, made by wire EDM in the conditions of finishing and roughing. The discs are plasma nitride, and their effect on the wear during pin-on-disc tests is evaluated. In this sense, the analysis of the surface damage for the different pins will help us to understand the service life and wear evolution of the forging dies. The results show that plasma nitride reduces the friction and prevents the degradation of the pin, independently of the material of the pin, when sliding over finishing and roughing EDM conditions.

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“…The recommendations given by the tool manufacturers regarding the maximum speeds were included. They were 15,000 rpm for the 40 mm diameter tool and 38,000 rpm for the 20 mm diameter tool [ 27 ]. Table 4 shows the designed DOE.…”

Section: Methodsmentioning

confidence: 99%

Effect of Surface Texture on the Structural Adhesive Joining Properties of Aluminum 7075 and TEPEX®

et al. 2022

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In the process of continuous improvement of manufacturing processes, this study was developed within the framework of the Ecovoss project, based on the inclusion of lightweight and new materials parts in the automotive sector. The objective was based on the replacement of aluminum welding operations with the option of adhesive operations with other types of materials such as polyamides or, in this case, a TEPEX® composite material (Dynalite 202-c200/50% TYP 13). The aim of this work is to test the best texturing of substrate made in 7075 aluminum specimens manufactured by robotic polishing with an ABB 6640 robot. Another substrate is TEPEX composite. A structural adhesive film AF-163-2 from the 3M company (St Paul, Minnesota, US) is used, which must be applied according to the manufacturing procedure. The tests carried out are based on the topographic measurement of the surfaces to be joined with an Alicona focus variation microscope, and the uniaxial shear tests of adhesive samples have been analyzed. The texture of the surface failure has been analyzed, and the results confirm a significant correlation between the texture parameters of initial surfaces and maximum shear stress. The expected results should provide a better understanding of the surfaces aimed to optimize the adhesion of the studied materials.

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Topographic Wear Monitoring of the Interface Tool/Workpiece in Milling AISI H13 Steel

Cited by 7 publications

References 25 publications

Sliding abrasive wear when combining WEDM conditions and polishing treatment on H13 disks over 1045 carbon steel pins

Sliding abrasive wear when combining WEDM conditions and polishing treatment on H13 disks over 1045 carbon steel pins

Surface Damaging of Brass and Steel Pins when Sliding over Nitrided Samples Cut by Finishing and Roughing EDM Conditions

Effect of Surface Texture on the Structural Adhesive Joining Properties of Aluminum 7075 and TEPEX®

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