Surface fatigue and wear of PVD coated punches during fine blanking operation

Sergejev, Fjodor; Peetsalu, Priidu; Sivitski, Alina; Saarna, Mart; Adoberg, Eron

doi:10.1016/j.engfailanal.2011.02.011

Cited by 35 publications

(23 citation statements)

References 10 publications

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“…Furthermore, by optimizing heat treatment parameters and using additional heat and thermo-chemical processes tool steel properties and its wear resistance can be further enhanced and adjusted for a specific application [12]. Another way of improving tool wear resistance is application of hard wear resistant coatings [13][14][15], where tribological process is dominated by properties including the coating-to-substrate hardness relationship, the coating thickness, the surface roughness, the state of residual stresses between the coating and the substrate, etc. [16].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Load-carrying capacity can be simply improved by increasing substrate hardness, which on the other hand also results in reduced fracture toughness. However, under cyclic impact loading, typical for many forming applications, resistance to crack initiation and propagation is equally or even more important than coating wear resistance [14,19]. Formation of surface and subsurface cracks may lead to coating spallation, flaking or delamination and thus to failure of a very expensive tool.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

See 1 more Smart Citation

Impact of fracture toughness on surface properties of PVD coated cold work tool steel

Podgornik

Sedlaček

Čekada

et al. 2015

Surface and Coatings Technology

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Impact of fracture toughness on surface properties of PVD coated cold work tool steel

Podgornik

Sedlaček

Čekada

et al. 2015

Surface and Coatings Technology

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“…In other processes including punching and blanking, the punch wear, deformation and breakage are the major areas of concern [8]. These problems could be addressed using wear-resistance hard protective coatings [9], which can be deposited using different techniques for example physical vapor deposition -PVD [10][11][12], chemical vapor deposition -CVD [13], laser cladding [14] and cathodic arc evaporation [3,15]. The thermo-reactive deposition/diffusion (TRD) process is another method used for improving the mechanical properties of these components and tools, mainly because of its low cost and good performance of the coatings deposited [16].…”

Section: Introductionmentioning

confidence: 99%

Properties and in-service performance of components reated with thermo reactive deposition/diffusion

Marulanda

Toro

Castillejo

et al. 2018

Ingeniare. Rev. chil. ing.

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Properties and in-service performance of components reated with thermo reactive deposition/diffusionPropiedades y desempeño en servicio de componentes tratados con deposición/difusión termorreactiva ABSTRACT Machine components and tools subjected to aggressive environments and strong wear conditions need surfaces with good mechanical properties. The thermo-reactive deposition/diffusion (TRD) process is one of the methods used for improving the mechanical properties of these components and tools, mainly because of its low cost and good performance of the coatings deposited. Although the TRD process is widely used for coating dies, extrusion tools and punches among others, the in-service performance of cutting tools coated using the TRD process has not been extensively studied. In this study, niobium carbide coatings were deposited on cutting punches and screw taps using the TRD technique. Phase formation and micro-hardness of the coatings were studied using X-ray diffraction and Vickers measurements respectively, and the in-service performance of the coated and uncoated tools was studied through field tests conducted at different numbers of cuts. The results show that the coating significantly improves the wear resistance and the cutting performance of the tools, especially at higher numbers of cuts. RESUMENLos componentes de maquinaria y las herramientas sujetas a ambientes agresivos y fuertes condiciones de desgaste necesitan superficies con buenas propiedades mecánicas. El proceso de deposición/difusión termorreactiva (TRD) es uno de los métodos usados para mejorar las propiedades mecánicas de estos componentes y herramientas, principalmente por su bajo costo y buen desempeño de los recubrimientos depositados. Aunque el proceso TRD es ampliamente usado para recubrir moldes, herramientas de extrusión y punzones entre otros, el desempeño en servicio de herramientas de corte recubiertas usando el proceso TRD no ha sido estudiado extensamente. En este estudio se depositaron recubrimientos de carburo de niobio sobre punzones de corte y machos de roscado usando la técnica TRD. La formación de fases y la microdureza de los recubrimientos se estudió usando difracción de rayos X y dureza Vickers

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“…Another advantage of the PVD technique is the ability to deposit much thinner films [ 4 ]. Due to advanced characteristics, PVD coatings are employed in various machining and abrasion applications [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Research, concerning prospects of coatings, in particular PVD coatings, for metalforming tools, working in prevailing adhesion wear conditions (in particular, sheet metal blanking tools), is comparatively restricted [7][8][9][10]. Therefore, the present study is focused on the performance of tool steels, strengthened by PVD coatings, working in adhesion wear conditions (testing of adhesive wear, metalforming, particularly blanking of electrotechnical steel).…”

Section: Introductionmentioning

confidence: 99%

Wear performance of PVD coated tool steels

Tshinjan¹,

Klaasen²,

Kübarsepp³

et al. 2012

Estonian J. Eng.

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The paper describes the performance of high alloy tool steels coated by PVD techniques. Performance evaluation was based on the wear resistance in the conditions of prevalence of adhesion and on tool wear (durability) in the conditions of blanking of electrotechnical sheet steel. Hardmetal (WC-15% Co) was used as a primary standard material. It is shown that adhesive wear resistance depends both on the composition of the PVD coating and on that of the tool material to be coated -steels with higher adhesive wear resistance ensure also a higher strengthening effect of the surface. Sharpening of specimens (cutting tools) -removal of coating at the face zone of the tool by grinding -revealed the difference in the efficiency of the coating in different zones of the tool. In terms of durability, thin PVD coatings do not enable improvement of the performance of sheet metal blanking tools (dies, punches). No correlation between durability in blanking and adhesive wear resistance was revealed. In terms of durability prognostication, alloys' (tool steels, hardmetals, cermets) adhesive wear resistance enables tool life assessment only when materials of similar nature (steels, carbide composites) are compared.

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Surface fatigue and wear of PVD coated punches during fine blanking operation

Cited by 35 publications

References 10 publications

Impact of fracture toughness on surface properties of PVD coated cold work tool steel

Impact of fracture toughness on surface properties of PVD coated cold work tool steel

Properties and in-service performance of components reated with thermo reactive deposition/diffusion

Wear performance of PVD coated tool steels

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