Microstructure and mechanical properties of hybrid fabricated 1Cr12Ni2WMoVNb steel by laser melting deposition

Wang, Yudai; Tang, Hao; Fang, Yue; Wang, Huaming

doi:10.1016/j.cja.2013.02.027

Cited by 39 publications

(16 citation statements)

References 16 publications

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“…Previously, the authors studied the root peak formation in welds during the process of laser welding using highly concentrated energy fluxes. According to the present knowledge about the physical nature of these processes, the reason for instabilities is self-oscillations of the weld pool [12][13][14][15][16][17][18][19]. Different experimental data confirm this idea [16,19].…”

Section: Theory Of High-speed Direct Laser Depositionmentioning

confidence: 99%

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Theory and Technology of Direct Laser Deposition

Turichin¹,

Klimova-Korsmik²

2018

Additive Manufacturing of High-Performance Metals and Alloys - Modeling and Optimization

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Presently the additive technologies in manufacturing are widely developed in all industrialized countries. Replacing the traditional technology of casting and machining with additive technologies, one can significantly reduce material consumption and labor costs. They also allow obtaining products with desired properties. The most promising for manufacturing large-sized products is the additive technology of high-speed direct laser deposition. Using this technology allows to create complex parts and construction to one technological operation without using addition equipment and tools. This technology allows decreasing of consumption of raw materials and decrease amount of waste. Equipment for realization of DLD technology is universal and based on module design principle. DLD is based on layer-by-layer deposition and melting of powder by laser beam from using a sliced 3D computer-aided design (CAD) file. The materials used are powders based on Fe, Ni, and Ti. This chapter presents the results of machine design and research HS DLD technology from various materials.

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Section: Theory Of High-speed Direct Laser Depositionmentioning

confidence: 99%

“…There is a high productivity of DLD process for the manufacture of real parts and products: up to 2.5 kg/h for nickel and iron alloys, up to 1.2 kg/h for titanium alloys. For similar equipment, the productivity is 2-3 times less [12][13][14]. There are experimental stands with the same high productivity (up to 2 kg/h), preferably [15].…”

Section: Introductionmentioning

confidence: 99%

Theory and Technology of Direct Laser Deposition

Turichin¹,

Klimova-Korsmik²

2018

Additive Manufacturing of High-Performance Metals and Alloys - Modeling and Optimization

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“…SLM is basically a powder bed fusion technique using metal powders [2]. It is one of the most preferred forms of AM due to its ability to generate complex geometries [3,4,5,6]. 3D printing process is based on an input of sliced 3D CAD data, having layer thicknesses around 20 µm to 100 µm which result in multiple 2D sections.…”

Section: Introductionmentioning

confidence: 99%

Markov Process in Varying Value in Production by Machinery with Two Components

Mohan¹,

Selvaraju²,

Shanmugan³

2019

IJITEE

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Additive manufacturing is finding increasing applications in industries ranging from electronics to aerospace and even medical sectors. However, these machines are very expensive which hinders researcher investigations. Thus it is important to have an alternative data source for such machines. A probable solution is to develop a simulator to replicate such machine based on same input parameters and thus obtain results similar to that from an actual machine. This would help developers and researchers investigate several aspects of additive manufacturing without using the actual machine. This paper reports an investigation conducted to study the behavior of a selective laser melting machine under different scenarios. Influences due to components such as vacuum pump, reciprocating pump, gas inlet valve, vent valve, elevator and wiper have been included. Experimental result data has been used to build codes in C# software to program the PLC simulator. Validation experiments confirmed simulation output. The present work helps the end user to inspect real time simulations such as vacuum creation, inert gas atmosphere progression. Thus, simulation results offer time and resource savings to an additive manufacturing end user by him/her make informed decisions by supplying exact parameter settings suitable to his/her manufacturing requirements.

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“…Modern technology and software even enables the deposition on free-formed surfaces. Nowadays, the material spectrum that is used for LMD is limited to stainless steel [8], low carbon tool steel [9], nickel base alloys, and pure metals like nickel [10] or titanium [4], as well as the embedding of not fusible particles in one of the named materials [11].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Heat Treatment Strategies for Additively-Manufactured Tools of X37CrMoV5-1

Junker

Hentschel

Schmidt

et al. 2018

Metals

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For cost-intensive products like automobiles, clients often wish to personalize their product, what forces the industry to create a large diversity of combinable parts. Additionally, the life cycles of many components become shorter. For highly-stressable parts, which are commonly manufactured by forging, the short changeover cycles result in expensive products, as the costs of tools must be offset by the sale of only a few parts. To reduce the tool cost, new, flexible processes have to be established in tool manufacturing. Laser-based additive manufacturing is noted for its high flexibility; notably, Laser Metal Deposition (LMD) is gaining increasing relevance in research, as it is already used for coating and repairing forming tools, this technology makes it possible to add material onto free-formed surfaces. Therefore, investigations are being conducted to qualify this process to produce forging tools. Due to the thermal processes which are required during additive manufacturing, the microstructure of the material differs from that of wrought material. This, in turn, affects the strategy of post heat treatment in order that the required mechanical properties for tools be attained. Within this manuscript, the influence of additive manufacturing on performance characteristics of hot work tool steel X37CrMoV5-1 (1.2343) is analyzed. To investigate the behavior of additively manufactured material during the process chain of tool manufacturing, properties for different states of a heat treatment are characterized by hardness and strength. It was shown that the strength of the additively manufactured material could be increased compared to wrought material by using a tailored heat treatment. The effects that cause this behavior are investigated by comparing the microstructure at different states of heat treatment.

show abstract

Microstructure and mechanical properties of hybrid fabricated 1Cr12Ni2WMoVNb steel by laser melting deposition

Cited by 39 publications

References 16 publications

Theory and Technology of Direct Laser Deposition

Theory and Technology of Direct Laser Deposition

Markov Process in Varying Value in Production by Machinery with Two Components

Investigation of Heat Treatment Strategies for Additively-Manufactured Tools of X37CrMoV5-1

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