The effect of scanning strategy on laser fusion of functionally graded H13/Cu materials

Beal, Valter Estevão; Erasenthiran, Poonjolai; Hopkinson, Neil; Dickens, Phill; Ahrens, Carlos Henrique

doi:10.1007/s00170-005-0130-x

Cited by 64 publications

(44 citation statements)

References 9 publications

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“…Wu et al (2007) have analyzed the appearing defects during SLM process using Cu-based powder and obtained a part with high relative density. Beal et al (2006) have developed functionally graded materials for SLM process and studied the scanning strategy. Li et al (2009) have also developed a new composite material and studied its sintering mechanism when fabricated by SLM process.…”

Section: Introductionmentioning

confidence: 99%

Research on track overlapping during Selective Laser Melting of powders

Yang

2012

Journal of Materials Processing Technology

106

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Section: Introductionmentioning

confidence: 99%

Research on track overlapping during Selective Laser Melting of powders

Yang

2012

Journal of Materials Processing Technology

106

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“…(7~12) Beal (7,8) 등은 Abstract: With the development of layered manufacturing, thermally conductive molds or molds embedding conformal cooling channels can be directly fabricated. Although P21 tool steel is widely used as a mold material because of its dimensional stability, it is not efficient for cooling molds owing to its low thermal conductivity.…”

Section: 서 론 최근에 와서 미시간 대학의 Dmd(direct Metalmentioning

confidence: 99%

Fabrication of Functionally Graded Materials Between P21 Tool Steel and Cu by Using Laser-Aided Layered Manufacturing

Jeong¹,

Shin²

2013

Transactions of the Korean Society of Mechanical Engineers A

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With the development of layered manufacturing, thermally conductive molds or molds embedding conformal cooling channels can be directly fabricated. Although P21 tool steel is widely used as a mold material because of its dimensional stability, it is not efficient for cooling molds owing to its low thermal conductivity. Hence, the use of functionally graded materials (FGMs) between P21 and Cu may circumvent a tradeoff between the strength and the heat transfer rate. As a preliminary study for the layered manufacturing of thermally conductive molds having FGM structures, one-dimensional P21-Cu FGMs were fabricated by using laser-aided direct metal tooling (DMT), and then, material properties such as the thermal conductivity and specific heat that are related to the heat transfer were measured and analyzed.

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“…Research has included functionally graded Tungsten Carbide/Tool Steel parts [33] and Tool Steel/Copper parts [34]. Literature suggests that no research has used SLM to produce functionally graded nickel alloy and ceramic parts…”

Section: Solid Freeform Fabricationmentioning

confidence: 99%

Laser melting functionally graded composition of Waspaloy® and Zirconia powders

Mumtaz

Hopkinson

2007

J Mater Sci

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An approach for fabricating functionally graded specimens of supernickel alloy and ceramic compositions via Selective Laser Melting (SLM) is presented. The focus aimed at using the Functionally Graded Material (FGM) concept to gradually grade powdered compositions of Zirconia within a base material of Waspaloy ® . A high power Nd:YAG laser was used to process the material compositions to a high density with gradual but discrete changes between layered compositions. The graded specimens initially consisted of 100% Waspaloy ® with subsequent layers containing increased volume compositions of Zirconia (0-10%).Specimens were examined for porosity and microstructure. It was found that specimens contained an average porosity of 0.34% with a gradual change between layers without any major interface defects.

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The effect of scanning strategy on laser fusion of functionally graded H13/Cu materials

Cited by 64 publications

References 9 publications

Research on track overlapping during Selective Laser Melting of powders

Research on track overlapping during Selective Laser Melting of powders

Fabrication of Functionally Graded Materials Between P21 Tool Steel and Cu by Using Laser-Aided Layered Manufacturing

Laser melting functionally graded composition of Waspaloy® and Zirconia powders

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