Metal Laser Sintering for Rapid Tooling in Application to Tyre Tread Pattern Mould

Milovanović, Jelena; Stojković, Miloš; Trajanović, Miroslav

doi:10.5772/35276

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…(7) SEM analysis revealed that there is a good bonding between the particles because of reduced LSS, higher heat energy absorbed by the powder during the process which results in improved melting and higher density. The improved strength could be expected due to enhanced density of the AM parts in agreement with [22]. (8) It is observed that wear and coefficient of friction are lower at the LSS of 50 mm/s, in AM parts when compared with the parts built through PM.…”

Section: Discussionsupporting

confidence: 55%

Comparative Study on H20 Steel Billets: Additive Manufacturing vs. Powder Metallurgy

Nasar

Baruch

Vijay

et al. 2021

Phys. Metals Metallogr.

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Additive Manufacturing is one of the revolutionizing technologies of modern manufacturing industry. This technology has time and again proved that any material can be fabricated by it if the right parameters are employed. Other technologies such as powder metallurgy are also dominating the manufacturing industries owing to its potential flexibility in manufacturing complex shapes. In this work, an attempt has been made to fabricate cylindrical components through both the techniques, and their properties are compared. A study on metallurgical properties revealed that both provide similar microstructures, but powder metallurgy yielded better mechanical properties. It has been also observed that the tribological properties are better in additive manufactured components. The reason for this behavior has been studied and discussed.

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Section: Discussionsupporting

confidence: 55%

Comparative Study on H20 Steel Billets: Additive Manufacturing vs. Powder Metallurgy

Nasar

Baruch

Vijay

et al. 2021

Phys. Metals Metallogr.

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“…[110,122,123] This phenomenon is greatly attributed to the faster processing, which minimizes the losses of energy, which are significant at low build rates. [64,71] However, the reported results differ: In the case of an AlSi alloy, the reproduction of the values [45,87,101,157,[160][161][162][163][164] dedicated study to this topic [121] 1.4539; 904L 99 [165] 1.2709; 18Ni Marage 300; hot work steel; EOS MS1 >99 99.99 [51,146,[166][167][168][169] 1.2343; H11 (tool steel) %100 [45] 1.2344; H13 (tool steel) >99 99.99 [119,170,171] H20 (tool steel); EOS DirectSteel >97.5 99.5 [172,173] 1.2764 (case-hardening steel) >99 [50] X110CrMoVAl 8-2 (cold work steel) %100 [174] 1.4542; 17-4PH (age-hardenable stainless steel) $99 >99.9 [55,[175][176][177] M2 HSS >90 99.8 [118,146,178] Fe-28 at% Al 99.5 [179] Fe-35 wt% Al (intermetallic) 98 [180] Fe-0.8 wt% C 93 [181] Fe-2 wt% C 92.0 [182] Fe-30Ni 98.0 [183] Fe-12Ni-4Cr 99.5 [183]...…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…In terms of AM fabricated goods, this precise correlation is not yet available, which is partially attributed to the varying irradiation parameters of the core and contour, leading to possible deviations between core and surface properties. 1.2343 50-54 [45] 1.2344 706-894 PT ¼ NP-400 C [119] H20 34 319 [173] X110CrMoVAl 8-2 493 [174] M2 HSS 64; 57 remelting; single irradiation [118,146] 650-900 [178,224] Fe-12Ni-4Cr 450 320-420 [183,225] Fe85Cr4Mo8V2C1 883-900 energy density ¼ 89, 130 J mm À3 [174] Fe-12Ni-4Cr HIP 475-500 100 MPa, 2 h, 1050 C [225] Table 11. [91] In addition, it was documented that inhomogeneities along samples, for example, different stages of precipitation hardening, can be detected via hardness measurements.…”

Section: Hardnessmentioning

confidence: 99%

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

et al. 2018

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Additive manufacturing has multiple advantages over conventional fabrication techniques, such as the geometrical freedom and, to a great extent, the omission of tooling equipment. Hence, futuristic designs and non-standard topology-optimized structures can be fabricated without causing noteworthy extra cost, since the geometrical complexity is, exaggeratedly spoken, for free. The manufacturing time and the amount of required raw material are the key criteria, which determine the expenses. What at first glance appears as an engineer's dream, introduces its complexity in the description of the material's characteristics and their volatility to the manufacturing conditions. Within this study, the main properties (i.e., surface hardness, tensile, and compression strength, as well as fracture toughness) and their anisotropic and inhomogeneous nature are addressed. Detailed overviews of the progress to date for aluminum, iron, titanium, cobalt, and nickel based raw materials are provided. Furthermore, an overview about the state-of-the-art in the medical sector is included, comprising the areas of utilization and several trail studies.

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“…Due to a desirable set of performance characteristics, H13/DIN 1.2344 tool steel is often used in traditionally manufactured injection mould tools. However, there has been a comparatively limited focus in the literature on the application of H13 tool steel in SLM manufacture of injection moulds (Armillotta et al , 2013; Lee et al , 2009; Păcurar, Păcurar, & Bâlc, 2013), with most work focused on stainless (Milovanovic et al , 2012; Sachs et al , 1997, 2000; Thomas, 2010; Xu et al , 2001) or maraging steels (Casavola et al , 2008, 2009; EOS GmbH, 2012; Mayer, 2012). Stainless steels offer corrosion resistance; however, they are typically of lower hardness than tool steels such as H13, resulting in reduced wear performance (ASM, 1990).…”

Section: Introductionmentioning

confidence: 99%

SLM additive manufacture of H13 tool steel with conformal cooling and structural lattices

Mazur

Leary

McMillan

et al. 2016

RPJ

170

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Purpose Additive manufacture (AM) such as selective laser melting (SLM) provides significant geometric design freedom in comparison with traditional manufacturing methods. Such freedom enables the construction of injection moulding tools with conformal cooling channels that optimize heat transfer while incorporating efficient internal lattice structures that can ground loads and provide thermal insulation. Despite the opportunities enabled by AM, there remain a number of design and processing uncertainties associated with the application of SLM to injection mould tool manufacture, in particular from H13/DIN 1.2344 steel as commonly used in injection moulds. This paper aims to address several associated uncertainties. Design/methodology/approach A number of physical and numerical experimental studies are conducted to quantify SLM-manufactured H13 material properties, part manufacturability and part characteristics. Findings Findings are presented which quantify the effect of SLM processing parameters on the density of H13 steel components; the manufacturability of standard and self-supporting conformal cooling channels, as well as structural lattices in H13; the surface roughness of SLM-manufactured cooling channels; the effect of cooling channel layout on the associated stress concentration factor and cooling uniformity; and the structural and thermal insulating properties of a number of structural lattices. Originality/value The contributions of this work with regards to SLM manufacture of H13 of injection mould tooling can be applied in the design of conformal cooling channels and lattice structures for increased thermal performance.

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Metal Laser Sintering for Rapid Tooling in Application to Tyre Tread Pattern Mould

Cited by 4 publications

References 12 publications

Comparative Study on H20 Steel Billets: Additive Manufacturing vs. Powder Metallurgy

Comparative Study on H20 Steel Billets: Additive Manufacturing vs. Powder Metallurgy

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

SLM additive manufacture of H13 tool steel with conformal cooling and structural lattices

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