The manufacturing of hard tools from metallic powders by selective laser melting

Abe, Fumie; Osakada, Kozo; Shiomi, Masanori; Uematsu, K.; Matsumoto, Megumi

doi:10.1016/s0924-0136(01)00522-2

Cited by 350 publications

(172 citation statements)

References 4 publications

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“…For instance, stainless-steel tool inserts for plastic injection moulds, as well as tool inserts for the hot spots of forming tools in automotive applications, are being produced using AM metal systems [17]. Typically, sequential Numerical Control (NC) milling is always required to achieve the geometrical requirements [18]. AM technology is also suitable for the reparation of aircraft engine parts, such as turbine blades, as well as suitable for the production of complex parts for end-use applications [19].…”

Section: Introductionmentioning

confidence: 99%

The ultrasonic burnishing of cobalt-chrome and stainless steel surface made by additive manufacturing

2017

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post-processing of 316L requires 1000 mm/min for the feed speed, 0.025 mm for the side shift and 1 mm for spring compression, when taking also productivity into consideration. The results of this experiment show that the subtractive methods and labour-intensive post-processing of AM metal parts can be replaced by burnishing methods, thus reducing the cost barriers of additive technology and drive its adoption in industry.

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Section: Introductionmentioning

confidence: 99%

The ultrasonic burnishing of cobalt-chrome and stainless steel surface made by additive manufacturing

2017

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“…The earliest examples of a stress model for SLM/DMLS were developed by Matsumoto et al [18,55] at Osaka University in Japan and first published in 2001-2002. Kruth et al at University of Leuven in Belgium have also worked extensively on this problem [9,32,[37][38][39][56][57][58] and over time developed one of the most well-respected general SLM/DMLS models in the world, as discussed previously.…”

Section: Stress and Distortion Modelsmentioning

confidence: 99%

“…While this is the most common technique, besides post-processing, to optimize parts, it depends mostly on the experience and intuition of the user and is usually not applicable to general problems using SLM/DMLS. While many case studies and part-and machine-specific solutions have been published, the best documented and most widely-cited solutions that analyze residual stresses were those by Kruth et al [32], Carter et al [78], Zhang et al [79], Abe et al [55], Bo et al [80], Shiomi et al [81], Yasa and Kruth [82] and Mumtaz and Hopkinson [83].…”

Section: Process Input Controlmentioning

confidence: 99%

Overhanging Features and the SLM/DMLS Residual Stresses Problem: Review and Future Research Need

2017

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Abstract:A useful and increasingly common additive manufacturing (AM) process is the selective laser melting (SLM) or direct metal laser sintering (DMLS) process. SLM/DMLS can produce full-density metal parts from difficult materials, but it tends to suffer from severe residual stresses introduced during processing. This limits the usefulness and applicability of the process, particularly in the fabrication of parts with delicate overhanging and protruding features. The purpose of this study was to examine the current insight and progress made toward understanding and eliminating the problem in overhanging and protruding structures. To accomplish this, a survey of the literature was undertaken, focusing on process modeling (general, heat transfer, stress and distortion and material models), direct process control (input and environmental control, hardware-in-the-loop monitoring, parameter optimization and post-processing), experiment development (methods for evaluation, optical and mechanical process monitoring, imaging and design-of-experiments), support structure optimization and overhang feature design; approximately 143 published works were examined. The major findings of this study were that a small minority of the literature on SLM/DMLS deals explicitly with the overhanging stress problem, but some fundamental work has been done on the problem. Implications, needs and potential future research directions are discussed in-depth in light of the present review.

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“…The earliest examples of a stress model for SLM/DMLS were developed by Matsumoto et al [18,55] Belgium have also worked extensively on this problem [9, 32, 37-39, [56][57][58] and over time developed one of the most well-respected general SLM/DMLS models in the world, as discussed previously.…”

Section: Stress and Distortion Modelsmentioning

confidence: 99%

Overhanging Features and the SLM/DMLS Residual Stresses Problem: Review and Future Research Need

Patterson¹,

Messimer²,

Farrington³

2017

Preprint

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A useful and increasingly common additive manufacturing (AM) process is the selective laser melting (SLM) or direct metal laser sintering (DMLS) process. SLM/DMLS can produce fulldensity metal parts from difficult materials, but it tends to suffer from severe residual stresses introduced during processing. This limits the usefulness and applicability of the process, particularly in the fabrication of parts with delicate overhanging and protruding features. The purpose of this study was to examine the current insight and progress made toward understanding and eliminating the problem in overhanging and protruding structures. To accomplish this, a survey of literature was undertaken, focusing on process modeling (general, heat transfer, stress and distortion, and material models), direct process control (input and environmental control, hardware-in-the-loop monitoring, parameter optimization, and post-processing), experiment development (methods for evaluation, optical and mechanical process monitoring, imaging, and design-of-experiments), support structure optimization, and overhang feature design; approximately 140 published works were examined. The major findings of this study were that a small minority of the literature on SLM/DMLS deals explicitly with the overhanging stress problem, but some fundamental work has been done on the problem. Implications, needs, and potential future research directions are discussed in-depth in light of the present review.

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The manufacturing of hard tools from metallic powders by selective laser melting

Cited by 350 publications

References 4 publications

The ultrasonic burnishing of cobalt-chrome and stainless steel surface made by additive manufacturing

The ultrasonic burnishing of cobalt-chrome and stainless steel surface made by additive manufacturing

Overhanging Features and the SLM/DMLS Residual Stresses Problem: Review and Future Research Need

Overhanging Features and the SLM/DMLS Residual Stresses Problem: Review and Future Research Need

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