Wear mechanisms in deep drawing of carbon steel – correlation to laboratory testing

Gåård, Anders; Krakhmalev, Pavel; Bergström, Jens

doi:10.1002/tt.49

Cited by 44 publications

(30 citation statements)

References 19 publications

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“…1, which is described in detail in [2]. A discshaped tool (width 10 mm, diameter 50 mm, and edge radius 5 mm) was forced to slide against the sheet material at a constant normal load of 100, 200, and 300 N and slid for 950 mm with a velocity of 5,000 mm/min.…”

Section: Methodsmentioning

confidence: 99%

“…The SOFS tribometer, which utilizes a disc-shaped tool slid over a real sheet surface, has been efficiently used for galling evaluation [1,2]. For example in [1], mediumstrength steel sheets were used for tests in dry sliding test conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The damage is of high concern for the forming industry and particularly for the sheet metal forming society. In general, galling is a multi-stage process [1][2][3][4], distinguished as a sequence of events with an initial stage of local transfer of sheet material to the tool surface. Subsequent forming operations lead to growth of the transfer layer and initiation of a second stage with scratching of the work piece.…”

Section: Introductionmentioning

confidence: 99%

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Wear Mechanisms in Galling: Cold Work Tool Materials Sliding Against High-strength Carbon Steel Sheets

2008

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Transfer and accumulation of adhered sheet material, generally referred to as galling, is the major cause for tool failure in sheet metal forming. In this study, the galling resistances of several tool steels were evaluated against dual-phase high-strength carbon steel using a SOFS tribometer, in which disc-shaped tools were slid against a real sheet surface in dry sliding test conditions. Three different frictional regimes were identified and characterized during sliding, and any transition in friction corresponded to a transition in wear mechanisms of the sheets. The performance of the tools depended on load, material and the particular frictional regime. Best overall performance was obtained by nitrogen-alloyed powder metallurgy tool steel.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wear Mechanisms in Galling: Cold Work Tool Materials Sliding Against High-strength Carbon Steel Sheets

2008

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“…A high galling tendency during AHSS forming is observed under severe conditions [1,12,16]. However, the CVD process utilizes a high deposition temperature, which affects tool softening and causes structural changes.…”

Section: Introductionmentioning

confidence: 98%

Performance of CrN radical nitrided tools on deep drawing of advanced high strength steel

Sresomroeng

Premanond

Kaewtatip

et al. 2011

Surface and Coatings Technology

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“…Gåård et al [6] investigated galling wear mechanisms and surface damage on deep drawing dies and sheet steel. They demonstrated the progression of galling wear damage of sheet material from abrasive scratching to severe adhesive damage.…”

Section: Introductionmentioning

confidence: 99%

Using stamping punch force variation for the identification of changes in lubrication and wear mechanism

Voss

Pereira

Rolfe

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. The growth in use of Advanced High Strength Steels in the automotive industry for light-weighting and safety has increased the rates of tool wear in sheet metal stamping. This is an issue that adds significant costs to production in terms of manual inspection and part refinishing. To reduce these costs, a tool condition monitoring system is required and a firm understanding of process signal variation must form the foundation for any such monitoring system. Punch force is a stamping process signal that is widely collected by industrial presses and has been linked closely to part quality and tool condition, making it an ideal candidate as a tool condition monitoring signal. In this preliminary investigation, the variation of punch force due to different lubrication conditions and progressive wear are examined. Linking specific punch force signature changes to developing lubrication and wear events is valuable for die wear and stamping condition monitoring. A series of semi-industrial channel forming trials were conducted under different lubrication regimes and progressive die wear. Punch force signatures were captured for each part and Principal Component Analysis (PCA) was applied to determine the key Principal Components of the signature data sets. These Principal Components were linked to the evolution of friction conditions over the course of the stroke for the different lubrication regimes and mechanism of galling wear. As a result, variation in punch force signatures were correlated to the current mechanism of wear dominant on the formed part; either abrasion or adhesion, and to changes in lubrication mechanism. The outcomes of this study provide important insights into punch force signature variation, that will provide a foundation for future work into the development of die wear and lubrication monitoring systems for sheet metal stamping.

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Wear mechanisms in deep drawing of carbon steel – correlation to laboratory testing

Cited by 44 publications

References 19 publications

Wear Mechanisms in Galling: Cold Work Tool Materials Sliding Against High-strength Carbon Steel Sheets

Wear Mechanisms in Galling: Cold Work Tool Materials Sliding Against High-strength Carbon Steel Sheets

Performance of CrN radical nitrided tools on deep drawing of advanced high strength steel

Using stamping punch force variation for the identification of changes in lubrication and wear mechanism

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