On adhesion of work material in metal forming

Hanson, Magnus; Hogmark, Sture; Coronel, Ernesto; Persson, Daniel

doi:10.1504/ijmmp.2008.018744

Cited by 3 publications

(4 citation statements)

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“…Budinski already counted almost twenty ASTM standard wear tests among which at least a quarter could be used to study the galling phenomenon [BLA99]. Many other friction tests are also commonly used to study galling, such as the two crossed cylinders test [HAN08], the U-bending test [SCH94], the deep drawing test [KIM07] or the strip reduction test [AND98]. Each of these tests simulates different tribological conditions in terms of contact pressure, plastic strain, sliding velocities and temperature, thereby emulating various conditions of contact encountered in industrial forming or machining processes.…”

Section: -Introductionmentioning

confidence: 99%

Numerical prediction of the galling of aluminium alloys in cold strip drawing

Filali

Dubois

Moghadam

et al. 2022

Journal of Manufacturing Processes

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Section: -Introductionmentioning

confidence: 99%

Numerical prediction of the galling of aluminium alloys in cold strip drawing

Filali

Dubois

Moghadam

et al. 2022

Journal of Manufacturing Processes

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“…1,2 Galling generally appears in various sheet metal forming manufacturing processes, such as die cutting, pressing, shearing, bent, stamping, perforated and lined. 3 In manufacturing countries galling can be seen found in several areas: Manufacture of industrial and commercial air conditioning, heating, refrigeration equipment; internal combustion engines, turbines and transmissions, mass reproduction of magnetic components, optical media and the automotive industry. 4 In the automotive industry, galling is present in stamping at casing car manufacturing or the materials used commonly for this process are Aluminum 6061 as raw material and D2 tool steel grade as stamping mold.…”

Section: Introductionmentioning

confidence: 99%

“…1,2 Galling generally appears in various sheet metal forming manufacturing processes, such as die cutting, pressing, shearing, bent, stamping, perforated and lined. 3…”

Section: Introductionmentioning

confidence: 99%

Galling wear between ASTM 6061 aluminum and grade D2 tool steel

Martínez-Méndez

Antonio-Aguirre

Vite-Torres

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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In the automotive industry, galling is a huge problem either for the tool life or the quality of the stamping metal component. Galling is a severe form of scuffing associated with gross damage to the surface or failure. This work aims to carry out a series of experiments of galling tests at different loads and similar roughness with 6061 aluminum and D2 steel, common materials used in automotive components and tools respectively. A tribometer was employed to generate Galling wear, the button-on-button configuration, according to the ASTM G-196-08 standard. The results show the threshold of minimum load without galling wear. Post-test-surface analysis of the specimens was conducted by confocal microscopy to identify the damage generated during the wear tests. Additionally, a couple of friction tests were carried only to illustrate the friction coefficient behavior under galling conditions.

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“…However there are limitations to the success of aluminium forming processes due to the materials' vulnerability to undergo galling with the forming tools [1][2][3][4][5][6][7][8]. The consequences of material transfer and adhesive wear to the tool may result in severe damage to the tooling and workpiece surfaces [9,10]. Previous studies on the surface modification of steel tooling showed that appropriate methods of polishing were effective in reducing galling [11,12].…”

Section: Introductionmentioning

confidence: 99%

The Galling Behavior of Advanced Coating Contacts with Aluminium Alloy during Sliding Wear

Gharbi²,

Liang

et al. 2018

KEM

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This paper investigates the galling behaviour of a range of hard coatings applied to tooling surfaces during the sheet forming of an aluminium alloy workpiece. A total of three types of tooling materials were investigated, two of which were subject to PVD deposited coatings of AlCrN, CrN and DLC applied to the working surface. The third tooling material had undergone induction heating, plasma-nitriding and polishing. To evaluate the galling behaviour of the applied coatings, a tribological evaluation was conducted using a pin-on-disc test set-up at a constant load and varying temperature. The coated discs, replicating the tooling material, were tested against aluminium alloy pins AA6082 and AA7075 representing the workpiece material. This investigation indicated that the friction and galling behaviour of aluminium is highly dependent on temperature, and the use of two different aluminium pins had no significant effect. At room temperature, it was found that carbon-based coatings provide the lowest friction and the best protection against galling, whilst nitride-based treatments exhibit better performance at high temperature. Moreover, at elevated temperatures, coated tools exhibit superior anti-galling properties compared to uncoated tools.

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On adhesion of work material in metal forming

Cited by 3 publications

References 0 publications

Numerical prediction of the galling of aluminium alloys in cold strip drawing

Numerical prediction of the galling of aluminium alloys in cold strip drawing

Galling wear between ASTM 6061 aluminum and grade D2 tool steel

The Galling Behavior of Advanced Coating Contacts with Aluminium Alloy during Sliding Wear

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